HT instruments VEGA78 User Manual

VEGA78

User manual

 Copyright HT ITALIA 2013 Release EN 1.04 - 19/02/2013

VEGA78

Table of contents:

1. PRECAUTIONS AND SAFETY MEASURES ............................................................. 3

1.1. General ................................................................................................................................. 3

1.2. Preliminary instructions ......................................................................................................... 3

1.3. During use ............................................................................................................................. 4

1.4. After use ................................................................................................................................ 4

1.5. Measuring (overvoltage) categories definitions ..................................................................... 4

2. GENERAL DESCRIPTION ......................................................................................... 5 

2.1. Introduction ........................................................................................................................... 5

2.2. Functions ............................................................................................................................... 5

2.3. Initial screen .......................................................................................................................... 5

3. PREPARE TO USE ..................................................................................................... 6

3.1. Initial check ........................................................................................................................... 6

3.2. Instrument power supply ....................................................................................................... 6

3.3. Calibration ............................................................................................................................. 6

3.4. Storage .................................................................................................................................. 6

4. HOW TO OPERATE ................................................................................................... 7

4.1. Instrument description ........................................................................................................... 7

4.2. Keyboard description ............................................................................................................ 8

4.3. Display description ................................................................................................................ 9

4.4. Reset of meter ....................................................................................................................... 9

5. GENERAL MENU ..................................................................................................... 10

5.1. General settings .................................................................................................................. 11

5.1.1. Language selection .................................................................................................................. 11

5.1.2. Date/Time settings .................................................................................................................... 12

5.1.3. Display brightness adjust .......................................................................................................... 13 

5.1.4. Protection Password setting ..................................................................................................... 13

5.1.5. Sound keys setting ................................................................................................................... 14

5.1.6. Auto power off setting ............................................................................................................... 15

5.1.7. Memory type setting ................................................................................................................. 16

5.1.8. “Touch screen” calibration ........................................................................................................ 16

5.2. Real Time Values ................................................................................................................ 17

5.2.1. 4-wire three phase system – Screens sequence ..................................................................... 17

5.2.2. 3-wire three phase system – Screens sequence ..................................................................... 20

5.2.3. 3-wire ARON three phase system – Screens sequence .......................................................... 22

5.2.4. Single phase system – Screens sequence .............................................................................. 24

5.2.5. SCOPE waveforms screens ..................................................................................................... 25

5.2.6. HARM analysis screens ........................................................................................................... 28

5.2.7. Vectorial diagrams screens ...................................................................................................... 32

5.3. Analyzer Settings ................................................................................................................ 36

5.3.1. Analyzer Configuration screen ................................................................................................. 36

5.3.1.1. Setting system frequency ................................................................................................................ 38

5.3.1.2. Setting clamp type ........................................................................................................................... 38

5.3.1.3. Setting full scale of clamps .............................................................................................................. 38

5.3.1.4. Setting VT ratio ................................................................................................................................ 39

5.3.2. Advanced Settings screen ........................................................................................................ 39

5.3.2.1. Zoom graphics option ...................................................................................................................... 39

5.3.2.2. Harmonics type option ..................................................................................................................... 40

5.3.2.3. Harmonics values option ................................................................................................................. 40

5.3.2.4. Zoom with respect to the 1st harmonic option ................................................................................. 41

5.3.2.5. Average value option ....................................................................................................................... 41

5.4. Recording settings .............................................................................................................. 42

5.4.1. Recording settings screen ........................................................................................................ 42

5.4.2. Comments ................................................................................................................................ 43

5.4.2.1. Use of virtual keyboard .................................................................................................................... 43

5.4.3. Start and Stop ........................................................................................................................... 44

5.4.4. Integration period ...................................................................................................................... 44

5.4.5. Cogenerations .......................................................................................................................... 44

5.4.6. General Parameters ................................................................................................................. 45

5.4.6.1. General Parameters: sub-levels description .................................................................................... 47

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VEGA78

5.4.6.2. Harmonics: sub-levels description ................................................................................................... 50

5.4.7. Voltage Anomalies .................................................................................................................... 51

5.4.8. Unbalance ................................................................................................................................. 52

5.4.9. Predefined configurations ......................................................................................................... 53

5.4.10. Start a recording ....................................................................................................................... 58

5.4.10.1. Automatic start of recording ............................................................................................................. 60

5.4.11. During a recording .................................................................................................................... 61

5.5. Saved data management section ........................................................................................ 62

5.5.1. Recording analysis (Reg type) ................................................................................................. 63

5.5.1.1. Recording information ..................................................................................................................... 63

5.5.1.2. Recording graph .............................................................................................................................. 64

5.5.1.3. Dips ans swells ................................................................................................................................ 66

5.5.1.4. Analysis of consumed energy .......................................................................................................... 68

5.5.1.5. Analysis of producted energy .......................................................................................................... 69

5.5.2. Recording analysis (Istant type) ............................................................................................... 70

5.5.2.1. Recording information ..................................................................................................................... 70

5.5.2.2. Graph .............................................................................................................................................. 71

5.5.2.3. Harmonics analysis ......................................................................................................................... 77

5.5.2.4. Vectors ............................................................................................................................................ 88

5.5.2.5. Measures ......................................................................................................................................... 95

5.5.3. Transfer recordings to a external Pen Driver USB ................................................................. 102

5.5.4. Saving recordings to external Compact Flash ........................................................................ 103

5.6. Meter information .............................................................................................................. 104

6. CONNECTION OF METER TO PC (WITH WIN XP) ............................................... 105

7. MEASURING PROCEDURES ................................................................................ 106

7.1. Using of meter in a Single phase system .......................................................................... 106

7.2. Using of meter in a Three phase 4 wire system ................................................................ 107

7.3. Using of meter in a Three phase 3 wire system ................................................................ 108

7.4. Using of meter in a Three phase 3 wire ARON system..................................................... 109

8. MAINTENANCE ...................................................................................................... 110

8.1. General ............................................................................................................................. 110

8.2. Situations relative to internal battery ................................................................................. 110

8.2.1. Replacement internal battery .................................................................................................. 110

8.3. Cleaning ............................................................................................................................ 110

8.4. End of life .......................................................................................................................... 110

9. TECHNICAL SPECIFICATIONS ............................................................................. 111

9.1. Technical features ............................................................................................................. 111

9.2. General features ............................................................................................................... 113

9.3. Environment ...................................................................................................................... 113

9.3.1. Climatic condition ................................................................................................................... 113

9.4. Accessories ....................................................................................................................... 113

10. APP ENDIX – THEORETICAL OUTLINE S .............................................................. 114

10.1. Voltage Anomalies ........................................................................................................ 114

10.2. Voltage and current Harmonics ..................................................................................... 114

10.2.1. Theory ..................................................................................................................................... 114

10.2.2. Limit values for harmonic voltage ........................................................................................... 115

10.2.3. Presence of harmonics: causes ............................................................................................. 116

10.2.4. Presence of harmonics: consequences ................................................................................. 116

10.3. Supply voltage unbalance ............................................................................................. 117

10.4. Power and power factor: definitions .............................................................................. 118

10.4.1. Conventions on powers and power factors ............................................................................ 119

10.4.2. Three phase 3 wire ARON system ......................................................................................... 120

10.5. Measuring method: outlines .......................................................................................... 121

10.5.1. Integration period .................................................................................................................... 121

10.5.2. Power factor calculations ........................................................................................................ 121

11. AFTER-SALE SERVICE ......................................................................................... 122

11.1. Warranty ........................................................................................................................ 122

11.2. Service .......................................................................................................................... 122

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VEGA78

1. PRECAUTIONS AND SAFETY MEASURES

1.1. GENERAL

This meter has been designed in compliance to IEC/EN61010-1 directive. For your own safety and to avoid damaging the instrument we suggest you follow the procedures hereby

prescribed and to read carefully all the notes preceded by the symbol . Before and during measurements please take care of below points:

 Do not measure voltage or current in wet or dusty places.  Do not measure in presence of gas, explosive materials or combustibles.  Do not touch the circuit under test if no measurement is being taken.  Do not touch exposed metal parts, unused terminals, circuits and so on.  Do not use the meter if it seems to be malfunctioning (i.e. if you notice deformations,

breaks, leakage of substances, absence of messages on the display and so on).

The below symbols are used in this manual and on meter:

Caution: keep to what prescribed by the manual. An incorrect use could damage the instrument or its components.

High voltage: risk of electric shock.

Double insulation.

Ground reference.

1.2. PRELIMINARY INSTRUCTIONS

 This instrument has been designed for use in places with pollution class 2.  It can be used for Voltage and Current measurements on installations of excess

voltage CAT IV 600V to earth and a 1000V maximum voltage between inputs

 We recommend following the normal safety rules devised by the procedures for

carrying out operations on live systems and using the prescribed PPE to protect the user against dangerous currents and the instrument against incorrect use

 In case the lack of warning against the presence of voltage may constitute a danger for

the operator always carry out a continuity measurement before carrying out the measurement of the live system to confirm the correct connection and condition of the leads

 Only the accessories supplied with the instrument guarantee compliance with the

safety standards. Accordingly, they must be in good conditions and, if necessary, they must be replaced with identical models.

 Do not take measurements on circuits exceeding the specified current and voltage

limits.

 Before connecting cables, crocodiles and clamps to the circuit under test, make sure

that the right function has been selected.

CAUTION

 Please perform a complete charging of internal battery for at least 5 hours

before using the meter the first time.

 Please press and hold the ON/OFF key for about 5s when turning on the

meter the first time.

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VEGA78

1.3. DURING USE

Please read carefully the below points:

CAUTION

Should you fail to keep to the prescribed instructions you could damage the instrument and/or its components or endanger your safety.

 Do not touch any unused terminal when the meter is connected to the circuit on test.  When measuring current, other currents located near the leads may affect the

measuring accuracy.

 When measuring current, always position the wire in the very middle of the jaws in

order to obtain the highest accuracy.

 A measured value remains constant if the "HOLD" function is active. Should you notice

that the measured value remains unchanged, disable the “HOLD” function.

1.4. AFTER USE

 After use, turn off the instrument by pressing ON/OFF key for a few seconds.  If you expect not to use the instrument for a long time please keep to the storage

instructions described at § 3.4.

1.5. MEASURING (OVERVOLTAGE) CATEGORIES DEFINITIONS

IEC / EN61010-1: Safety requirements for electrical equipment for measurement, control and laboratory use, Part 1: General requirements, gives a definition of measuring category, usually called overvoltage category. § 6.7.4: Measuring circuits:

(OMISSIS) Circuits are divided into the following measurement categories:  Measurement category IV is for measurements performed at the source of the low-

voltage installation.

Examples are electricity meters and measurements on primary overcurrent protection

devices and ripple control units.

 Measurement category III is for measurements performed in the building installation.

Examples are measurements on distribution boards, circuit breakers, wiring, including

cables, bus-bars, junction boxes, switches, socket-outlets in the fixed installation, and equipment for industrial use and some other equipment, for example, stationary motors with permanent connection to fixed installation.

 Measurement category II is for measurements performed on circuits directly

connected to the low voltage installation.

Examples are measurements on household appliances, portable tools and similar

equipment.

 Measurement category I is for measurements performed on circuits not directly

connected to MAINS.

Examples are measurements on circuits not derived from MAINS, and specially

protected (internal) MAINS-derived circuits. In the latter case, transient stresses are variable; for that reason, the norm requires that the transient withstand capability of the equipment is made known to the user.

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VEGA78

2. GENERAL DESCRIPTION

2.1. INTRODUCTION

The VEGA78 meter permits a completely new approach to the world of electrical measures on network quality. In fact the computer assisted instruments along with Windows CE technology permit an easy and widely fast analysis of a huge quantity of data, which would be impossible with any other system.

2.2. FUNCTIONS

This meter are able to performs:  Real time visualization of numeric values of any electrical parameters of a single phase

and three-phase 3-wire or 4-wire systems, harmonic analysis of voltages and currents up to 49st order, Voltage anomalies (surge and dips) with 10ms resolution, voltages unbalance.

 Real time display of any input signal waveform, histogram graphics of harmonics

analysis and vectorial diagrams of mutual angles between voltages and currents.

 Recording (by pressing GO/STOP key) of this values: TRMS values of voltages,

currents, corresponding harmonics, active, reactive and apparent powers, power factors and cosphi, active, reactive and apparent energies, voltage anomalies. It will

be possible to analyze the recorded data ONLY by transferring them to a PC.

 Saving (by pressing SAVE key) of a “Instant” sampled of instantaneous values of any

parameters present at instrument input inside memory. It will be possible to analyze

the memorized data ONLY by transferring them to a PC.

2.3. INITIAL SCREEN

When turning on the instrument by pressing ON/OFF key, this below screen will appear for a few seconds:

VEGA78

HT

Sn:13030004 Rel:1.32 Calibration Date: 09/01/2013

Here you can see (besides model code and manufacturer name):

 The serial number of the meter (Sn:).  The release of internal meter Firmware (Rel:).  Date of last calibration (Calibration Date:).

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VEGA78

3. PREPARE TO USE

3.1. INITIAL CHECK

This meter has been checked before shipment from an electrical and mechanical point of view. All possible precautions have been taken in order to deliver it in perfect condition. Notwithstanding, on receipt of the instrument we suggest that you check it summarily to make sure that no damage has occurred in transit. Should you find irregularities please contact the carrier immediately. Furthermore, please make sure that the parcel contains all the accessories and parts listed at enclosed packing list. In case of discrepancies please contact your dealer. Should it be necessary to return the instrument to the supplier please keep to the instructions given at §

11.

3.2. INSTRUMENT POWER SUPPLY

The instrument can be powered only by a rechargeable Li-ION battery (3.7V, 1900mAh) which is included with the meter. Use only the external adapter standard supplied with meter for charging battery (see § 8.2 for more details).

For recordings use ALWAYS the external adapter (even the instrument allows the operator to perform a recording using internal battery).

Please perform a complete charging of internal battery for at least 5 hours before the first use of meter.

The meter uses the below options to increase the battery duration:  Automatically reduction of display brightness after about 30s from last operation

performed with meter, with external adapter not connected.

 Auto Power OFF feature after about 5 minutes from the last operation on function keys

or display touch screen with external adapter not connected (see § 5.1.6).

3.3. CALIBRATION

The instrument complies with the standards mentioned in this manual. Its performance is defined for 12 months from the purchase date.

3.4. STORAGE

To guarantee accurate measurements, after a long storage period in severe environmental conditions wait until the instrument resumes its normal conditions (see § 9.3.1).

CAUTION

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VEGA78

g

4. HOW TO OPERATE

4.1. INSTRUMENT DESCRIPTION

CAPTION:

1. Voltage and Current inputs

2. TFT display with “touchscreen”

3. F1 – F4 keys

4. Arrows keys and ENTER key

5. GO/STOP key

6. SAVE key

7. ON/OFF key

8. Input for external adapter

9. HELP key

10. ESC key

11. Output per external compact flash connection

12. Output per external USB driver connection

13. USB output for PC connection

Fig. 1: Description of meter's front panel

CAPTION:

1. B1-B4 inputs for voltage connections on L1, L2, L3 phases and neutral N

2. BE input for Ground connection

3. Inputs for currents connections on L1, L2, L3

4. Input for neutral N current

connection

Fig. 2: Description of meter's input terminals

CAPTION:

ESD Warnin

1. Input for external adapter

2. Output for compact flash (*)

3. Output for external driver USB (*)

4. RESET command

5. USB output for PC connection (*)

Fig. 3: Description of meter's output connectors

(*) Use the output connectors included into the lateral side only with meter OFF. This outputs should be

interested by electrostatic discharges (ESD).

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VEGA78

4.2. KEYBOARD DESCRIPTION

The below keys are available:  Key ON/OFF: Press this key to turn on the meter. Press and hold the key for few

seconds to turn off the meter.

 Keys F1, F2, F3, F4: Multifunction keys. The various functions are intended from the s

shown on the bottom of display.

 Key ESC: To leave a menu or a sub-menu. The smart icon which is shown

on screens performs the same function under interactive mode.

 Key ENTER: Double function key:

 ENTER: To confirm the settings made.  HOLD: To block the value updating in all real time screens and also

during a recording operation. “H” symbol is shown at display by any pressing of key as for Fig. 4:

12/09/2006 – 16:55:10 H

0.0

V12

0.0

I1

0.0

TOTAL RMS VALUES – Page 1/6

V2N

0.0

V23

0.0

ZERO%

0.0

I2

0.0

V3N

0.0

V31

0.0

SEQ

000

I3

0.0

V1N

NEG%

PAGE SCOPE HARM VECTORS

VNPE

0.0

Hz

0.0

IN

0.0 A

V

Fig. 4: HOLD function active at display

 Keys , , , /ZOOM in/ZOOM out: These arrows keys permit to select the desired

programmable parameters inside various screens. The double function of ZOOM in and ZOOM out permits to change manually the full scale of some graphics inside SCOPE section in order to improve the global resolution on viewing waveforms of signals (see

§ 5.3.2). Arrow keys  and  permit to operate on internal pages inside some kinds of screen.

 Key SAVE: Saves an “Instant” type sampling of instantaneous values in

internal memory (see § 5.5). The same key permits also the saving of various settings inside screens. The smart icon which is shown on screens perform the same function under interactive mode.

 Key GO/STOP: Permits to start/stop any recording (see § 5.4.10).  Key HELP: Opens an help on line window on the meter screen with a short

description of the same screen which is instantaneously shown. This key is active for any function.

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VEGA78

4.3. DISPLAY DESCRIPTION

The display is a graphic TFT colour type, 73x57mm sizes (VGA 320x240 pxls) with “touchscreen” which permits a really easy operations using standard PT400 pointer pen fitted in lateral side of meter. On first display’s row the system date/hour is shown by meter (see § 5.1.2 for settings). There are also some icons relative to battery level indication or external adapter fitted and for waiting and start of a recording. On second row the kind of selected measure is shown and the last row shows the short s associated to F1, F4 function keys. An example of possible screen is show n on Fig. 5:

12/09/2006 – 16:55:10

0.0

V12

0.0

I1

0.0

TOTAL RMS VALUES – Page 1/6

V2N

0.0

V23

0.0

ZERO%

0.0

I2

0.0

V3N

0.0

V31

0.0

SEQ

000

I3

0.0

VNPE

0.0

Hz

0.0

IN

0.0 A

V

V1N

NEG%

PAGE SCOPE HARM VECTORS

Fig. 5: Example of screen

4.4. RESET OF METER

The meter is designed with internal Reset Hardware which can be used if any functions is blocked at display, in order to restore all correct operations. Consider the below steps to perform Reset actions:

1. Using the PT400 pointer pen or another object softly pressing the internal part of the little hole which is present on the lateral side of meter (see Fig. 3 – 4). The meter goes automatically off.

2. Turn on the meter by pressing ON/OFF key and verify the correct working.

RESET operation will not erase the meter’s internal memory.

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VEGA78

5. GENERAL MENU

Whenever you turn on the meter, the below “Analyzer Configuration” screen is shown, relative to the last configuration used (see Fig. 6):

12/09/2006 – 16:55:10

ANALYZER CONFIGURATION

1 2 3 N

PE

System Freq [Hz] Clamp Type

4WIRE

50

FLEX

CHANGE

Clamp FS [A] VT Ratio

3000

1

OK

Fig. 6: Example of analyzer configuration

In this situation the user can decide whether modify the actual configuration by pressing F1 key (or “CHANGE” at display – see § 5.3.1) or directly access to General Menu by pressing F4 key (or the “OK” at display). If no action is performed within 10s the meter automatically goes to GENERAL MENU screen. The GENERAL MENU of meter is correspondent to the screen shown in Fig. 7:

12/09/2006 – 16:55:10

GENERAL MENU

Real time values

Fig. 7: GENERAL MENU screen

The actual selected section is shown with red background at display and it’s title is shown in the bottom of display. The below sections are available on meter:  General settings section which permits to set the system parameters of meter as

date/hour, language, display brightness, protection password, keys sound on pressure auto power off and memory type (see § 5.1).

 Real time values section which permits to see the real time measured values at

display under various formats (see § 5.2).

 Analyzer settings section which permits to define the simple and advanced

configurations relative to connection of meter to the installation (see § 5.3).

 Recorder settings section which permits to select the parameters for each recording

and see the information about the autonomy of meter during operation (see § 5.4).

 Recording results section which permits to see the list of all recordings saved on

internal memory, for memory cancel operations and the transfer of date in external Pen Driver USB (see § 5.5).

 Meter information section which permits to access to general information about meter

(serial number, internal Firmware and Software release, etc...) (see § 5.6).

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VEGA78

5.1. GENERAL SETTINGS

12/09/2006 – 16:55:10

MENU’ GENERAL

General settings

Fig. 8: MENU GENERAL screen - General settings section

This section permits to set the below control parameters:

 System language.  System Date/Hour.  Display brightness.  Protection password during recordings.  Key sound on pressure.  Auto Power OFF Enable/Disable.  Memory type settings

Pressing ENTER key (or touch the relative icon at display). The below screen is shown by meter:

12/09/2006 – 16:55:10

Language ENGLISH Brightness 75% Password NO Sound YES Auto power off YES Memory type INTERNAL

GENERAL SETTINGS

DATE MOD(+) MOD(-)

Fig. 9: General Settings screen

5.1.1. Language selection

1. Move the cursor using arrows keys on field relative to “Language”, marked with blue

background.

2. Using F3 or F4 keys (or touch MOD(+) o MOD(-)) for selection of language choosing

among the different options.

3. Pressing SAVE or ENTER keys (or the smart icon

) to save the selected option and

confirm by “Ok”. This selected parameter will be present also the turning off of meter.

4. Pressing ESC key (or the smart icon

) to exit by screen without saving any modify.

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VEGA78

5.1.2. Date/Time settings

1. Press the F1 key (or touch DATE at display) on screen of Fig. 9. The below screen is

shown by meter:

12/09/2006 – 16:55:10

Date format 12 09 06 UE Time format 11 56 00 24h

DATE / TIME SETTINGS

MOD(+) MOD(-)

Fig. 10: Date/Time settings screen

2. Move the cursor using arrows keys on field relative to “Date format” and “Time format”,

marked with blue background.

3. Using F3 or F4 keys (or touch MOD(+) o MOD(-)) for Date setting choosing between

the two possible formats (European EU or American US):

DD:MM:YY MM:DD:YY

Option EU Option US

4. Using F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) for Time setting choosing

between two possible format (24 hours or 12 hours):

HH:MM:SS

HH:MM:AM(PM)

Option 24h Option 12h

5. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and

confirm by “Ok”. This selected parameter will be present also the turning off of meter.

6. Pressing ESC key (or the smart icon ) to exit by screen without saving any modify.

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VEGA78

5.1.3. Display brightness adjust

1. Move the cursor using arrows keys on the field relative to “Brightness”, marked with

blue background, see Fig. 11:

12/09/2006 – 16:55:10

Language ENGLISH Brightness 75% Password NO Sound SI Auto power off SI Memory type INTERNAL

DATE MOD(+) MOD(-)

GENERAL SETTINGS

Fig. 11: Adjust brightness screen

2. Using F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) for adjustment of display

brightness percentage. The meter increases or decreases this value in step of 5% for each pressure of key.

3. Press SAVE or ENTER key (or the smart icon ) to save the selected option and

confirm by “Ok”. This selected parameter will be present also the turn off of meter.

4. Press ESC key (or the smart icon ) to quit without saving any modification.

5.1.4. Protection Password setting

The meter is provided with a protection password to avoid the risk of accidental recording interruption.

1. Move the cursor using arrows keys on field relative to “Password” , marked it with blue

background, see Fig. 12:

12/09/2006 – 16:55:10

Language ENGLISH Brightness 75% Password NO Sound SI Auto power off SI Memory type INTERNAL

GENERAL SETTINGS

DATE MOD(+) MOD(-)

Fig. 12: Protection password settings screen

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to enable “YES” or disable

“NO” of Password.

EN - 13

VEGA78

_

___

_

___

_

3. With Password enabled, should GO/STOP key be pressed during a recording, the

meter will not stop the operation but will require the user to insert password as shown in the below screen:

12/09/2006 – 16:55:10

GENERAL MENU

Warning

Insert Password

* * * *

__ __ __ ____

General settings

Fig. 13: Insert Password screen

4. The fixed password (not changeable by user) to insert on meter within 10s from

warning message is the below sequence of keys:

F1, F4, F3, F2

5. If a wrong password is fitted or if more of 10s elapse, the meter will give the warning

message “Wrong Password” and it’s necessary to repeat the operation. As soon as the correct password is fitted, the meter will stop immediately the recording running and the correspondent icon at display (see Fig. 13) will disappear.

6. Press SAVE or ENTER keys (or the smart icon

) to save the selected option and

confirm by “Ok”. This selected parameter will be present also after turning off the meter.

7. Pressing ESC key (or the smart icon ) to quit without saving any modification.

5.1.5. Sound keys setting

The meter permits to enable a instantaneous sound for any key pressure of the frontal panel.

1. Move the cursor using arrows keys on field relative to “Sound”, marked with blue

background, see Fig. 14:

12/09/2006 – 16:55:10

Language ENGLISH Brightness 75% Password NO Sound SI Auto power off SI Memory type INTERNAL

GENERAL SETTINGS

DATE MOD(+) MOD(-)

Fig. 14: Keys sound settings screen

EN - 14

VEGA78

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to enable “YES” or disable

“NO” of keys sound.

3. Pressing SAVE or ENTER keys (or the smart icon ) to save the selected option and

confirm by “Ok”. This selected parameter will be present also after turning off the meter.

4. Press ESC key (or the smart icon ) to quit without saving any modification.

5.1.6. Auto power off setting

The meter permits to enable or disable the auto power off option in order to prevent a quick discharge of internal battery. This feature, if selected, is active under each of the following conditions:

 No action was performed both any key or touch display for at least 5 minutes.  Meter does not supplied with external adapter.  Meter does not in recording running.

The effect is a long sound before turn off of meter.

1. Move the cursor using arrows keys on the field relative to “Auto power off”, marked with

blue background, see Fig. 15:

12/09/2006 – 16:55:10

Language ENGLISH Brightness 75% Password NO Sound SI Auto power off NO Memory type INTERNAL

GENERAL SETTINGS

DATE MOD(+) MOD(-)

Fig. 15: Auto power off setting screen

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) for enable “YES” or disable

“NO” auto power off.

3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and

confirm by “Ok”. This selected parameter will be present also after turning off the meter.

4. Press ESC key (or the smart icon ) to quit without saving any modification.

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VEGA78

5.1.7. Memory type setting

The meter permits saving of recordings both in its internal memory (about 15Mbytes) and by using an external compact flash (see § 5.5.4 for details) fitted (see Fig. 3). For the selection of memory type follow the below steps:

1. Move the cursor using arrows keys on field relative to “Memory type”, marked with blue

background, see Fig. 14:

12/09/2006 – 16:55:10

Language ENGLISH Brightness 75% Password NO Sound SI Auto power off NO Memory type INTERNAL

DATE MOD(+) MOD(-)

GENERAL SETTINGS

Fig. 16: Memory type setting screen

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to choose “ INTERNAL” or

“EXTERNAL” memory type.

3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and

confirm by “Ok”. This selected parameter will be present also after turning off the meter.

4. Press ESC key (or the smart icon ) to exit by screen without saving any modify.

5.1.8. “Touch screen” calibration

This operation is necessary if any internal features of “touch screen” display are not correctly positionated or not more selectable by using the PT400 pointer

1. Select the “TOUCH” item inside the “General settings” section. The message “Do You

want to calibrate touch screen?” is shown by the meter. Confirm with “Ok”. The herewith screen is shown:

Press and briefly hold stylus on the center of the target.

Repeat as the target moves around the sceen.

Fig. 17: Touch screen calibration screen

2. By pressing and soft hold the PT400 pointer on the central point of the cross cursor

(see Fig. 17) move the cursor to the four corners of display

3. Swith off and thane turn on the meter by means of ON/OFF key to complete the

operation

EN - 16

VEGA78

5.2. REAL TIME VALUES

Fig. 18: MENU GENERAL screen - Real time values section In this section the real time measured values of parameters both on input channels and internally calculated are shown by meter. In particular the following are shown:

1. AC TRMS voltages, currents and all kind of electrical parameters for any single phase

and total and voltages Unbalanced.

2. Voltage and current waveforms for any single phase and total.

3. Voltage and current harmonics up to 49th component for any single phase and total

both in numerical and histograms graphical format in absolute or percentage value with respect to each fundamental signal.

4. Vectorial diagrams of each voltage and current with the respective phase angles in

order to define the correct nature of system loads under test. Further in this manual the expression “Page x/y” will be used, to indicate that the current page number (x) and the total number of pages (y) depend on the instrument settings. Pressing cyclically F1 key or arrow keys left of right the meter shows the other pages of TRMS measured values which are described in below pictures. Pressing ESC key to go back to previous screens or back to GENERAL MENU

5.2.1. 4-wire three phase system – Screens sequence

12/09/2006 – 16:55:10

TOTAL RMS VALUES – Page x/y

V1N

0.0

V12

0.0

NEG%

0.0

I1

0.0

PAGE SCOPE HARM VECTORS

V2N

0.0

V23

0.0

ZERO%

0.0

I2

0.0

V3N

0.0

V31

0.0

SEQ

000

I3

0.0

VNPE

0.0

Hz

0.0

IN

0.0

Fig. 19: Page of numerical values

V

A

PARAMETERS CAPTION V1N  Phase-Neutral voltage L1 phase V2N  Phase-Neutral voltage L2 phase V3N  Phase-Neutral voltage L3 phase VNPE  Neutral-Ground voltage V12  Phase L1 – Phase L2 voltage V23  Phase L2 – Phase L3 voltage V23  Phase L3 – Phase L1 voltage NEG%  Un balance percentage of negative tern ZERO%  Unbalance percentage of zero tern SEQ  phases sequence indication as: ”123” = > Corrected ”132” = > Reversed ”023” = > Null voltage on the Black wire ”103” = > Null voltage on the Red wire ”120” = > Null voltage on the Brown wire ”100” = > Null voltage on the Red and Brown wires ”020” = > Null voltage on the Black and Brown wires ”003” = > Null voltage on the Black and Red wires Hz  Frequency I1  Current on L1 phase I2  Current on L2 phase I3  Current on L3 phase IN  Current on Neutral

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VEGA78

12/09/2006 – 16:55:10

TOTAL POWER VALUES – Page x/y

Patt Preatt Papp Pf CosPhi

= = = = =

0 W 0 Var 0 VA

0.00i

PARAMETERS CAPTION: Pact  Total Active Power Preact  Total Reactive Power Papp  Total Apparent Power Pf  Total Power Factor CosPhi  Total Power factor considering fundamental  of voltage and current signals

PAGE SCOPE HARM VECTORS

Fig. 20: Page of total power values

12/09/2006 – 16:55:10

PHASE 1 RMS VALUES – Page x/y

V1N I1 Patt1 Preatt1 Papp1 Pf1 CosPhi1

PAGE SCOPE HARM VECTORS

= = = = = = =

0.0 V

0.0 A 0 W 0 Var 0 VA

0.00i

Fig. 21: Page of Phase 1 values

12/09/2006 – 16:55:10

PHASE 2 RMS VALUES – Page x/y

V2N I2 Patt2 Preatt2 Papp2 Pf2 CosPhi2

= = = = = = =

0.0 V

0.0 A 0 W 0 Var 0 VA

0.00i

PARAMETERS CAPTION: V1N  Phase-Neutral voltage L1 phase I1  Current on L1 phase Pact1  Active Power L1 phase Preact1  Reactive Power L1 phase Papp1  Apparent Power L1 phase Pf1  Power factor L1 phase CosPhi1  Power factor between fundamental of  voltage L1 and current L1

PARAMETERS CAPTION: V2N  Phase-Neutral voltage L2 phase I2  Current on L2 phase Pact2  Active Power L2 phase Preact2  Reactive Power L2 phase Papp2  Apparent Power L2 phase Pf2  Power factor L2 phase CosPhi2  Power factor between fundamental of  voltage L2 and current L2

PAGE SCOPE HARM VECTORS

Fig. 22: Page of Phase 2 values

12/09/2006 – 16:55:10

PHASE 3 RMS VALUES – Page x/y

V3N I3 Patt3 Preatt3 Papp3 Pf3 CosPhi3

PAGE SCOPE HARM VECTORS

= = = = = = =

0.0 V

0.0 A 0 W 0 Var 0 VA

0.00i

Fig. 23: Page of Phase 3 values

PARAMETERS CAPTION: V3N  Phase-Neutral voltage L3 phase I3  Current on L3 phase Pact3  Active Power L3 phase Preact3  Reactive Power L3 phase Papp3  Apparent Power L3 phase Pf3  Power factor L3 phase CosPhi3  Power factor between fundamental of  voltage L3 and current L3

EN - 18

VEGA78

25/01/2013 – 16:55:10

TOT. ENERGY CONSUMPTION – Page x/y

Eact = 0 kWh Ppeak = 0 kW Date Ppeak : -- / -- / -- 00:00:00 Start rec. : -- / -- / -- 00:00:00 Stop rec. : -- / -- / -- 00:00:0 0 Rec. Time : - - Int. Per. : - - - Rec: - -

PAGE SCOPE HARM VECTORS

PARAMETERS CAPTION: Eact Total active energy consumed when starting recording. Ppeak  Maximum peak of consumed active power. Date Ppeak  Date and time in which the peak occurred. Start rec.  Date when recording was started. Stop rec.  Date when recording was stopped. Rec. Time  Time elapsed from Rec Start. Int. Per.  Value of the set integration period. Rec  Number of the recording in progress

Fig. 24: Consumed energy page

CAUTION

The Total Consumed Energy page is shown only if the instrument has been set for the Recording of the General Parameter Total “Active Power & Energy” (see § 5.4.6.1). Values will be shown only during or at the end of a recording and zeroed upon starting a new recording or when the instrument is switched off

25/01/2013 – 16:55:10

TOT. ENERGY PRODUCTION – Page x/y

Eact = 0 kWh Ppeak = 0 kW Date Ppeak : -- / -- / -- 00:00:00 Start rec. : -- / -- / -- 00:00:00 Stop rec. : -- / -- / -- 00:00:0 0 Rec Time : - - Int. Per. : - - - Rec: - -

PAGE SCOPE HARM VECTORS

Fig. 25: Producted energy page

PARAMETERS CAPTION: Eact Total active energy produced when starting recording. Ppeak  Maximum peak of produced active power. Date Ppeak  Date and time in which the peak occurred. Start rec.  Date when recording was started. Stop rec.  Date when recording was stopped. Rec Time  Time elapsed from Rec Start. Int. Per.  Value of the set integration period. Rec  Number of the recording in progress

CAUTION

The Total Produced Energy page is shown only if recording parameter “Cogeneration” has been set in the instrument (see § 5.4.5) and if general parameter Total “Active Power & Energy” has been selected (see § 5.4.6.1). Values will be shown only during or at the end of a recording and zeroed

12/09/2006 – 16:55:10

AVGV AVGI AVGPatt AVGPreat

upon starting a new recording or when the instrument is switched off.

AVERAGE RMS VALUE – Page 9/9

= = = =

0.0 V

0.0 A 0 W 0 Var

PARAMETERS CAPTION: AVGV  Average value voltage V1, V2, V3 AVGI  Average value current I1, I2, I3 AVGPact  Average value active power on L1, L2, L3 AVGPreact Average value reactive power on  L1,L2,L3

PAGE SCOPE HARM VECTORS

Fig. 26: Page of numerical average values

The AVERAGE RMS VALUES page will be shown only if option AVERAGE VALUES “YES” is enabled in the Advanced Settings section (see § 5.3.2.5)

CAUTION

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VEGA78

5.2.2. 3-wire three phase system – Screens sequence

PARAMETERS CAPTION: V1PE  Phase L1-PE voltage V2PE  Phase L2-PE voltage V3PE  Phase L3-PE voltage V12  Phase L1 – Phase L2 voltage

12/09/2006 – 16:55:10

TOTAL RMS VALUES – Page x/y

V1PE

0.0

V12

0.0

NEG%

0.0

I1

0.0

PAGE SCOPE HARM VECTORS

V2PE

0.0

V23

0.0

ZERO%

0.0

I2

0.0

V3PE

0.0

V31

0.0

SEQ

000

I3

0.0

Hz

0.0

V

A

V23  Phase L2 – Phase L3 voltage V23  Phase L3 – Phase L1 voltage NEG%  Unbalance percentage of negative tern ZERO%  Unbalance percentage of zero tern SEQ  phases sequence indication as: ”123” = > Corrected ”132” = > Reversed ”023” = > Null voltage on the Black wire ”103” = > Null voltage on the Red wire ”120” = > Null voltage on the Brown wire ”100” = > Null voltage on the Red and Brown wires ”020” = > Null voltage on the Black and Brown wires ”003” = > Null voltage on the Black and Red wires Hz  Frequency I1  Current on L1 phase I2  Current on L2 phase I3  Current on L3 phase

Fig. 27: Page of numerical values

12/09/2006 – 16:55:10

TOTAL POWER VALUES – Page x/y

Patt Preatt Papp Pf CosPhi

PAGE SCOPE HARM VECTORS

= = = = =

0 W 0 Var 0 VA

0.00i

Fig. 28: Page of total power values

12/09/2006 – 16:55:10

PHASE 1 RMS VALUES – Page x/y

V1PE I1 Patt1 Preatt1 Papp1 Pf1 CosPhi1

= = = = = = =

0.0 V

0.0 A 0 W 0 Var 0 VA

0.00i

PARAMETERS CAPTION: Pact  Total Active Power Preact  Total Reactive Power Papp  Total Apparent Power Pf  Total Power Factor CosPhi  Total Power factor considering fundamental  of voltage and current signals

PARAMETERS CAPTION: V1PE  Phase L1-PE voltage I1  Current on L1 phase Pact1  Active Power L1 phase Preact1  Reactive Power L1 phase Papp1  Apparent Power L1 phase Pf1  Power factor L1 phase CosPhi1  Power factor between fundamental of  voltage L1 and current L1

PAGE SCOPE HARM VECTORS

Fig. 29: Page of numerical values of Phase 1

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VEGA78

12/09/2006 – 16:55:10

PHASE 2 RMS VALUES – Page x/y

V2PE I2 Patt2 Preatt2 Papp2 Pf2 CosPhi2

= = = = = = =

0.0 V

0.0 A 0 W 0 Var 0 VA

0.00i

PARAMETERS CAPTION: V2PE  Phase L2-PE voltage I2  Current on L2 phase Pact2  Active Power L2 phase Preact2  Reactive Power L2 phase Papp2  Apparent Power L2 phase Pf2  Power factor L2 phase CosPhi2  Power factor between fundamental of  voltage L2 and current L2

PAGE SCOPE HARM VECTORS

Fig. 30: Page numerical values of Phase 2

12/09/2006 – 16:55:10

PHASE 3 RMS VALUES – Page x/y

V3PE I3 Patt3 Preatt3 Papp3 Pf3 CosPhi3

PAGE SCOPE HARM VECTORS

= = = = = = =

0.0 V

0.0 A 0 W 0 Var 0 VA

0.00i

PARAMETERS CAPTION: V3PE  Phase L3-PE voltage I3  Current on L3 phase Pact3  Active Power L3 phase Preact3  Reactive Power L3 phase Papp3  Apparent Power L3 phase Pf3  Power factor L3 phase CosPhi3  Power factor between fundamental of  voltage L3 and current L3

Fig. 31: Page numerical values of Phase 3

25/01/2013 – 16:55:10

TOT. ENERGY CONSUMPTION – Page x/y

Eact = 0 kWh Ppeak = 0 kW Date Ppeak : -- / -- / -- 00:00:00 Start rec. : -- / -- / -- 00:00:00 Stop rec. : -- / -- / -- 00:00:0 0 Rec. Time : - - Int. Per. : - - - Rec: - -

PAGE SCOPE HARM VECTORS

Fig. 32: Consumed energy page

The Total Consumed Energy page is shown only if the instrument has been set for the Recording of the General Parameter Total “Active Power & Energy” (see § 5.4.6.1). Values will be shown only during or at the end of a recording and zeroed upon starting a new recording or when the instrument is switched off

PARAMETERS CAPTION: Eact Total active energy consumed when starting recording. Ppeak  Maximum peak of consumed active power. Date Ppeak  Date and time in which the peak occurred. Start rec.  Date when recording was started. Stop rec.  Date when recording was stopped. Rec. Time  Time elapsed from Rec Start. Int. Per.  Value of the set integration period. Rec  Number of the recording in progress

CAUTION

EN - 21

VEGA78

25/01/2013 – 16:55:10

TOT. ENERGY PRODUCTION – Page x/y

Eact = 0 kWh Ppeak = 0 kW Date Ppeak : -- / -- / -- 00:00:00 Start rec. : -- / -- / -- 00:00:00 Stop rec. : -- / -- / -- 00:00:0 0 Rec Time : - - Int. Per. : - - - Rec: - -

PAGE SCOPE HARM VECTORS

PARAMETERS CAPTION: Eact Total active energy produced when starting recording. Ppeak  Maximum peak of produced active power. Date Ppeak  Date and time in which the peak occurred. Start rec.  Date when recording was started. Stop rec.  Date when recording was stopped. Rec Time  Time elapsed from Rec Start. Int. Per.  Value of the set integration period. Rec  Number of the recording in progress

Fig. 33: Producted energy page

CAUTION

The Total Produced Energy page is shown only if recording parameter “Cogeneration” has been set in the instrument (see § 5.4.5) and if general parameter Total “Active Power & Energy” has been selected (see § 5.4.6.1). Values will be shown only during or at the end of a recording and zeroed upon starting a new recording or when the instrument is switched off.

5.2.3. 3-wire ARON three phase system – Screens sequence

12/09/2006 – 16:55:10

TOTAL RMS VALUES – Page x/y

V12

0.0

NEG%

0.0

I1

0.0

PAGE SCOPE HARM VECTORS

V23

0.0

ZERO%

0.0

I2

0.0

V31

0.0

SEQ

000

I3

0.0

Hz

0.0

Fig. 34: Page of numerical values

12/09/2006 – 16:55:10

V12 I1 Patt12 Preatt12 Papp12 Pf12 CosPhi12

WATTMETER12 – Page x/y

= = = = = = =

0.0 V

0.0 A 0 W 0 Var 0 VA

0.00i

PARAMETERS CAPTION: V12  Phase L1 – Phase L2 voltage V23  Phase L2 – Phase L3 voltage V23  Phase L3 – Phase L1 voltage NEG%  Unbalance percentage of negative tern ZERO%  Unbalance percentage of zero tern

V

A

SEQ  phases sequence indication as: ”123” = > Corrected ”132” = > Reversed ”023” = > Null voltage on the Black wire ”103” = > Null voltage on the Red wire ”120” = > Null voltage on the Brown wire ”100” = > Null voltage on the Red and Brown wires ”020” = > Null voltage on the Black and Brown wires ”003” = > Null voltage on the Black and Red wires Hz  Frequency I1  Current on L1 phase I2  Current on L2 phase I3  Current on L3 phase

PARAMETERS CAPTION: V12  Phase L1 – Phase L2 voltage I1  Current on L1 phase Pact12  Active Power Wattmeter 12 Preact12  Reactive Power VARmeter 12 Papp12  Apparent Power VAmeter 12 Pf12  Power Factor Wattmeter 12 CosPhi12  Power Factor between fundamental of  voltage and current Wattmeter 12

PAGE SCOPE HARM VECTORS

Fig. 35: Page of numerical values Wattmeter-Varmeter 1-2

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12/09/2006 – 16:55:10

V32 I3 Patt32 Preatt32 Papp32 Pf32 CosPhi32

PAGE SCOPE HARM VECTORS

WATTMETER32 – Page x/y

= = = = = = =

0.0 V

0.0 A 0 W 0 Var 0 VA

0.00i

PARAMETERS CAPTION: V32  Phase L3 – Phase L2 voltage I3  Current on L3 phase Pact32  Active Power Wattmeter 32 Preact32  Reactive Power VARmeter 32 Papp32  Apparent Power VAmeter 32 Pf32  Power Factor Wattmeter 32 CosPhi32  Power Factor between fundamental of  voltage and current Wattmeter 32

Fig. 36: Page of numerical values Wattmeter-Varmeter 3-2

25/01/2013 – 16:55:10

TOT. ENERGY CONSUMPTION – Page x/y

Eact = 0 kWh Ppeak = 0 kW Date Ppeak : -- / -- / -- 00:00:00 Start rec. : -- / -- / -- 00:00:00 Stop rec. : -- / -- / -- 00:00:0 0 Rec. Time : - - Int. Per. : - - - Rec: - -

PAGE SCOPE HARM VECTORS

PARAMETERS CAPTION: Eact Total active energy consumed when starting recording. Ppeak  Maximum peak of consumed active power. Date Ppeak  Date and time in which the peak occurred. Start rec.  Date when recording was started. Stop rec.  Date when recording was stopped. Rec. Time  Time elapsed from Rec Start. Int. Per.  Value of the set integration period. Rec  Number of the recording in progress

Fig. 37: Consumed energy page

CAUTION

The Total Consumed Energy page is shown only if the instrument has been set for the Recording of the General Parameter Total “Active Power & Energy” (see § 5.4.6.1). Values will be shown only during or at the end of a recording and zeroed upon starting a new recording or when the instrument is switched off

25/01/2013 – 16:55:10

TOT. ENERGY PRODUCTION – Page x/y

Eact = 0 kWh Ppeak = 0 kW Date Ppeak : -- / -- / -- 00:00:00 Start rec. : -- / -- / -- 00:00:00 Stop rec. : -- / -- / -- 00:00:0 0 Rec Time : - - Int. Per. : - - - Rec: - -

PAGE SCOPE HARM VECTORS

PARAMETERS CAPTION: Eact Total active energy produced when starting recording. Ppeak  Maximum peak of produced active power. Date Ppeak  Date and time in which the peak occurred. Start rec.  Date when recording was started. Stop rec.  Date when recording was stopped. Rec Time  Time elapsed from Rec Start. Int. Per.  Value of the set integration period. Rec  Number of the recording in progress

Fig. 38: Producted energy page

CAUTION

The Total Produced Energy page is shown only if recording parameter “Cogeneration” has been set in the instrument (see § 5.4.5) and if general parameter Total “Active Power & Energy” has been selected (see § 5.4.6.1). Values will be shown only during or at the end of a recording and zeroed upon starting a new recording or when the instrument is switched off.

EN - 23

VEGA78

5.2.4. Single phase system – Screens sequence

12/09/2006 – 16:55:10

PHASE 1 RMS VALUES – Page x/y

V1N VNPE Freq I1 Patt1 Preatt1 Papp1 Pf1 CosPhi1

PAGE SCOPE HARM VECTORS

= = = = = = = = =

0.0 V

0.0 Hz

0.0 A

0.0 W

0.0 VAr

0.0 VA

0.00i

PARAMETERS CAPTION: V1N  Phase-Neutral voltage L1 phase VNPE  Neutral-Ground voltage Freq  Frequency I1 

Current on L1 phase

Pact1  Active Power L1 phase Preact1  Reactive Power L1 phase Papp1  Apparent Power L1 phase Pf1  Power factor L1 phase CosPhi1  Power factor between fundamental of  voltage L1 and current L1

Fig. 39: Page of numerical values

25/01/2013 – 16:55:10

TOT. ENERGY CONSUMPTION – Page x/y

Eact = 0 kWh Ppeak = 0 kW Date Ppeak : -- / -- / -- 00:00:00 Start rec. : -- / -- / -- 00:00:00 Stop rec. : -- / -- / -- 00:00:0 0 Rec. Time : - - Int. Per. : - - - Rec: - -

PAGE SCOPE HARM VECTORS

Fig. 40: Consumed energy page

The Total Consumed Energy page is shown only if the instrument has been set for the Recording of the General Parameter Total “Active Power & Energy” (see § 5.4.6.1). Values will be shown only during or at the end of a recording and zeroed upon starting a new recording or when the instrument is switched off

25/01/2013 – 16:55:10

TOT. ENERGY PRODUCTION – Page x/y

Eact = 0 kWh Ppeak = 0 kW Date Ppeak : -- / -- / -- 00:00:00 Start rec. : -- / -- / -- 00:00:00 Stop rec. : -- / -- / -- 00:00:0 0 Rec Time : - - Int. Per. : - - - Rec: - -

PAGE SCOPE HARM VECTORS

Fig. 41: Producted energy page

The Total Produced Energy page is shown only if recording parameter “Cogeneration” has been set in the instrument (see § 5.4.5) and if general parameter Total “Active Power & Energy” has been selected (see § 5.4.6.1). Values will be shown only during or at the end of a recording and zeroed upon starting a new recording or when the instrument is switched off.

PARAMETERS CAPTION: Eact Total active energy consumed when starting recording. Ppeak  Maximum peak of consumed active power. Date Ppeak  Date and time in which the peak occurred. Start rec.  Date when recording was started. Stop rec.  Date when recording was stopped. Rec. Time  Time elapsed from Rec Start. Int. Per.  Value of the set integration period. Rec  Number of the recording in progress

CAUTION

PARAMETERS CAPTION: Eact Total active energy produced when starting recording. Ppeak  Maximum peak of produced active power. Date Ppeak  Date and time in which the peak occurred. Start rec.  Date when recording was started. Stop rec.  Date when recording was stopped. Rec Time  Time elapsed from Rec Start. Int. Per.  Value of the set integration period. Rec  Number of the recording in progress

CAUTION

EN - 24

VEGA78

5.2.5. SCOPE waveforms screens

Starting from a any page of numerical values it’s possible to select waveforms screens of the input signals by pressing F2 key (or touch SCOPE at display). By pressing cyclically F1 key the below screens are shown by meter:  Simultaneous waveforms of voltages V1, V2, V3 and neutral voltage Vn (for three

phase 4-wire system and single phase), with their TRMS values as shown in below screens:

12/09/2006 – 16:55:10

SCOPE VOLTAGES – Page 1/5

Fs 400.0V V1 223.4V

V2 228.5V

V3 225.7V

Vn 0.0V

PAGE

Fig. 42: Voltage waveforms screen for 4-wire systems

12/09/2006 – 16:55:10

PAGE

SCOPE VOLTAGES – Page 1/5

Fs 400.0V V12 378.4V

V23 382.5V

V31 379.4V

Fig. 43: Voltage waveforms screen for 3-wire systems and ARON

12/09/2006 – 16:55:10

PAGE ZOOM I

SCOPE PHASE1 – Page 1/1

Fs 400.0V V1 228.3V

Vn 0.0V

Fs 20.0A

I1 10.2A

Fig. 44: Voltage/Current waveform screen for Single phase systems

EN - 25

VEGA78

 Simultaneous waveforms of currents I1, I2, I3 and neutral current In (for three phase 4-

wire system), with their TRMS values as shown in below screens:

12/09/2006 – 16:55:10

PAGE

SCOPE CURRENTS – Page 2/5

Fs 400.0A

I1 299.4A

I2 302.5A

I3 297.7A

In 97.8 A

Fig. 45: Current waveforms screen for 4-wire systems

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PAGE

SCOPE CURRENTS – Page 2/5

Fs 400.0A

I1 299.4A

I2 302.5A

I3 297.7A

Fig. 46: Current waveforms screen for 3-wire systems and ARON

 Waveforms of signals on L1 phase, with their TRMS values, as below shown:

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SCOPE PHASE1 – Page 3/5

Fs 400.0V V1 223.4V

Fs 400.0A

I1 299.4A

PAGE ZOOM V

Fig. 47: Voltage/Current waveforms screen L1 phase for 4-wire and 3-wire systems

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PAGE ZOOM V

SCOPE PHASE1 – Page 3/5

Fs 400.0V V12 382.4V

Fs 400.0A

I1 201.5A

Fig. 48: Voltage/Current waveforms screen L1 phase for ARON systems

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VEGA78

 Waveforms of signals on L2 phase, with their TRMS values, as below shown:

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SCOPE PHASE2 – Page 4/5

Fs 400.0V

V2 228.5V

Fs 400.0A

I2 302.5A

PAGE ZOOM V

Fig. 49: Voltage/Current waveforms screen L2 phase for 4-wire systems

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SCOPE PHASE2 – Page 4/5

PAGE ZOOM V

Fs 400.0V

V23 389.6V

Fs 400.0A

I2 203.5A

Fig. 50: Voltage/Current waveforms screen L2 phase for 3-wire and ARON systems

 Waveforms of signals on L3 phase, with their TRMS values, as below shown:

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SCOPE PHASE3 – Page 5/5

Fs 400.0V

V3 228.5V

Fs 400.0A

I3 297.7A

PAGE ZOOM V

Fig. 51: Voltage/Current waveforms screen L3 phase for 4-wire systems

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SCOPE PHASE3– Page 5/5

PAGE ZOOM V

Fs 400.0V

V31 386.6V

Fs 400.0A

I3 201.5A

Fig. 52: Voltage/Current waveforms screen L3 phase for 3-wire and ARON systems

In Manual mode inside Advanced Settings (see § 5.3.2.1) a customisation of full scale of voltage and current graphic is possible in order to improve the resolution on readings. In this situation pressing arrow keys ZOOM in or ZOOM out for increase or decrease the value of desired full scale. Press F2 key to change from current full scale to voltage full scale. Press ESC key (or the smart icon ) to quit waveforms screens and go back to TRMS real time values screen.

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V

5.2.6. HARM analysis screens

Starting from any page of numerical values it’s possible to enter harmonics numerical values and histogram graphics screens section for voltage and current input signals by pressing F2 key (or touch HARM at display). By pressing cyclically F1 key the below screens are shown by meter:  Harmonics values of V1, V2, V3 voltages and neutral voltage Vn (for three phase 4-

wire system), currents I1, I2, I3 and neutral current In (for three phase 4-wire system)with THD% values both with histogram graphics and with numerical values in percentage or absolute value, (see § 0 as below shown:

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TOTAL HARM VOLTAGE – Page 1/5

h 01

Fs 100%

1h

2h

3h

nh

Thd

PAGE HARM I TABLE HARM PAG

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TOTAL HARM VOLTAGE – Page 1/5

100.0%

0.0%

6.5%

5.9%

4.3%

0.0%

PAGE HARM I TABLE HARM PAG

h 01

Fs 400.0V

1h

2h

3h

nh

Thd

228.6V

225.1V

230.7V

0.0V

6.5%

5.9%

4.3%

0.0%

Fig. 53: Harmonic analysis of voltages in percentage/absolute values for 4-wire systems

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TOTAL HARM VOLTAGE – Page 1/4

h 01

Fs 100%

12h

23h

31h

Thd

PAGE HARM I TABLE HARM PAG

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TOTAL HARM VOLTAGE – Page 1/4

100.0%

6.5%

5.9%

6.5%

PAGE HARM I TABLE HARM PAG

h 01

Fs 400.0V

12h

23h

31h

Thd

328.4V

389.6V

386.6V

6.5%

5.9%

4.3%

Fig. 54: Harmonic analysis of voltages in percentage/absolute values for 3-wire and ARON

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PHASE1 HARM VOLTAGE – Pag 1/2

h 01

Fs 100%

1h

Thd

PAGE HARM I TABLE HARM PAG

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PHASE1 HARM VOLTAGE – Pag 1/2

100.0%

6.5%

PAGE HARM I TABLE HARM PAG

h 01

Fs 400.0V

1h Thd

228.6V

6.5%

Fig. 55: Harmonic analysis of voltages in percentage/absolute values for Single phase

In all case the full scale of graphs is automatically set from meter depending on measured values.

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VEGA78

 Change to currents screens by pressing F2 key (or touch “HARM I” at display). By

pressing F1 key (or the PAGE at display) the screens of total values and each phase currents I1, I2, I3 and In (for 4-wire and single phase systems) the main screens are below shown:

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TOTAL HARM CURRENT – Pag 1/5

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TOTAL HARM CURRENT – Pag 1/5

h 03

Fs 100% I1h

I2h

I3h

Inh

Thd

PAGE HARM V TABLE HARM PAG

45.3%

48.7%

37.6%

0.0%

35.5%

32.8%

42.5%

0.0%

PAGE HARM V TABLE HARM PAG

Fig. 56: Harmonic analysis of currents percentage/absolute for 4-wire systems

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TOTAL HARM CURRENT – Page 1/4

PAGE HARM V TABLE HARM PAG

h 03

Fs 100% I1h

I2h

I3h

Thd

45.3%

48.7%

37.6%

35.5%

32.8%

42.5%

12/09/2006 – 16:55:10

TOTAL HARM CURRENT – Page 1/4

PAGE HARM V TABLE HARM PAG

h 03

Fs 200.0A I1h

I2h

I3h

Inh

Thd

h 03

Fs 200.0A I1h

I2h

I3h

Thd

90.6A

97.4A

75.2A

0.0A

35.5%

32.8%

42.5%

0.0%

90.6A

97.4A

75.2A

35.5%

32.8%

42.5%

Fig. 57: Harmonic analysis currents percentage/absolute values for 3-wire and ARON

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PHASE1 HARM CURRENT – Page 1/1

h 03

Fs 100% I1h Thd

PAGE HARM V TABLE HARM PAG

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PHASE1 HARM CURRENT – Page 1/1

45.3%

35.5%

PAGE HARM V TABLE HARM PAG

h 03

Fs 200.0A I1h Thd

90.6A

35.5%

Fig. 58: Harmonic analysis of currents percentage/absolute for Single phase systems

 Change to screens of numerical values tables of harmonics voltages and currents up to

49st both percentage and absolute value (see § 0) by pressing F3 key (or touch “TABLE” at display), as shown in below pictures:

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h[%] Phase 1 Phase 2 Phase 3 Neutral Thd% 6.5 DC h1 h2 h3 h4 0.0 0.0 0.0 0.0

HARM I GRAPHIC HARM PAG

VOLTAGE HARMONICS

5.9 4.3 0.0

0.0 0.0 0.0 0.0

100.0 100.0 100.0 0.0

0.0 0.0 0.0 0.0

1.8 2.3 1.5 0.0

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VOLTAGE HARMONICS

h[V] Phase 1 Phase 2 Phase 3 Neutral Thd% 6.5 DC h1 h2 h3 h4 0.0 0.0 0.0 0.0

0.0 0.0 0.0 0.0

228.6 225.1 230.7 0.0

0.0 0.0 0.0 0.0

4.2 5.3 3.4 0.0

HARM I GRAPHIC HARM PAG

5.9 4.3 0.0

Fig. 59: Harmonic analysis voltages in percentage/absolute for 4-wire systems

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h[%] Phase 1 Phase 2 Phase 3 Neutral Thd% 35.5 DC h1 h2 h3 h4 0.0 0.0 0.0

HARM V GRAPHIC HARM PAG

CURRENT HARMONICS

32.8 42.5 0.0

0.0 0.0 0.0 0.0

100.0 100.0 100.0 0.0

0.0 0.0 0.0

45.3 48.7 37.6

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CURRENT HARMONICS

h[A] Phase 1 Phase 2 Phase 3 Neutral Thd% 35.5 DC h1

0.0

h2

0.0

h3

0.0

h4 0.0 0.0 0.0

0.0 0.0 0.0

199.7 200.4 197.3

0.0 0.0 0.0

90.6 97.4 75.2

HARM V GRAPHIC HARM PAG

32.8 42.5

0.0

Fig. 60: Harmonic analysis currents in percentage/absolute for 4-wire systems

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VOLTAGE HARMONICS

h[%] Phase 1 Phase 2 Phase 3 Thd% 6.5 DC h1 h2 h3

0.0 0.0 0.0

100.0 100.0 100.0

0.0 0.0 0.0

1.8 2.3 1.5

5.9 4.3

h4 0.0 0.0 0.0

HARM I GRAPHIC HARM PAG

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VOLTAGE HARMONICS

h[V] Phase 1 Phase 2 Phase 3 Thd% 6.5 DC h1 h2 h3

0.0 0.0 0.0

228.6 225.1 230.7

0.0 0.0 0.0

4.2 5.3 3.4

5.9 4.3

h4 0.0 0.0 0.0

HARM I GRAPHIC HARM PAG

Fig. 61: Harmonic analysis voltages in percentage/absolute for 3-wire and ARON systems

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CURRENT HARMONICS

h[%] Phase 1 Phase 2 Phase 3 Thd% 35.5 DC h1 h2 h3

0.0 0.0 0.0

100.0 100.0 100.0

0.0 0.0 0.0

45.3 48.7 37.6

32.8 42.5

h4 0.0 0.0 0.0

HARM V GRAPHIC HARM PAG

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CURRENT HARMONICS

h[A] Phase 1 Phase 2 Phase 3 Thd% 35.5 DC h1 h2 h3

0.0 0.0 0.0

199.7 200.4 197.3

0.0 0.0 0.0

90.6 97.4 75.2

32.8 42.5

h4 0.0 0.0 0.0

HARM V GRAPHIC HARM PAG

Fig. 62: Harmonic analysis currents in percentage/absolute for 3-wire and ARON systems

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h[%] Phase 1

Thd% 6.5 DC h1 h2 h3 h4 0.0

HARM I GRAPHIC HARM PAG

VOLTAGE HARMONICS

0.0

100.0

0.0

1.8

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VOLTAGE HARMONICS

h[V] Phase 1 Thd% 6.5 DC h1 h2 h3 h4 0.0

0.0

228.6

0.0

4.2

HARM I GRAPHIC HARM PAG

Fig. 63: Harmonic analysis voltage in percentage/absolute for Single phase system

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h[%] Phase 1

Thd% 35.5 DC h1 h2 h3 h4 0.0

HARM V GRAPHIC HARM PAG

CURRENT HARMONICS

0.0

100.0

0.0

45.3

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CURRENT HARMONICS

h[A] Phase 1 Thd% 35.5 DC h1 h2 h3 h4 0.0

0.0

199.7

0.0

90.6

HARM V GRAPHIC HARM PAG

Fig. 64: Harmonic analysis current in percentage/absolute for Single phase system

Press F3 key to back to graphical screens and F2 key to change voltages’ or currents’ screens. Press F4 key or the up and down arrows (or touch the “HARM PAG” at display) to show the screens relative to other harmonics orders up to 49st.  Harmonics values of single V1, V2, V3 voltages and neutral voltage Vn and single

currents I1, I2, I3 and neutral current In (for three phase 4-wire system) with THD% values both with histogram graphics and with numerical values in percentage or absolute value depending on the desired settings. These values are shown in four pages selectable by pressing cyclically the F1 key (or touch the “PAGE” at display). On Fig. 65 end Fig. 66 are display as an example, the situation relative to L1 phase for voltage and current on 4-wire systems is shown in the next pictures:

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PHASE1 HARM VOLTAGE – Pag 2/5

PAGE HARM I TABLE HARM PAG

h 01

Fs 100%

1h

Thd

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PHASE1 HARM VOLTAGE – Pag 2/5

100.0%

6.5%

PAGE HARM I TABLE HARM PAG

h 01

Fs

1h

Thd

400.0V

228.6V

6.5%

Fig. 65: Harmonic analysis voltage V1 in percentage/absolute values for 4-wire system

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PHASE1 HARM CURRENT – Pag 2/5

h 03

Fs 100% I1h Thd

PAGE HARM V TABLE HARM PAG

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PHASE1 HARM CURRENT – Pag 2/5

45.3%

35.5%

PAGE HARM V TABLE HARM PAG

h 03

Fs 200.0A I1h Thd

90.6A

35.5%

Fig. 66: Harmonic analysis of current I1 in percentage/absolute values for 4-wire system

5.2.7. Vectorial diagrams screens

Starting from a any page of numerical values it’s possible to select the vectorial diagrams screens of voltage and currents by pressing F4 key (or touch “VECTORS” at display). The aim of this feature is to show, with numerical and graphical indications, the phase angles, expressed in degree [°] between the three voltages V1, V2 and V3 and the currents I1, I2 and I3 in order to understand in each moment the inductive or capacitive loads nature of electrical installations. By pressing cyclically F1 key the below screens are shown by meter:

 Vectorial diagram total of phase angles among V1, V2, V3 and between V1-I1, V2-I2,

V3-I3 more than indication of percentage values of “NEG%” e “ZERO%” parameters (see § 10.3):

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TOTAL DIAGRAM – Page 1/6

PAGE

NEG 0.0% ZERO V1^ V2

V2^ V3

V3^ V1

V1^ I1

V2^ I2

V3^ I3

0.0%

120.0°

60.0°

Fig. 67: Vectorial diagram total for 4-wire system

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TOTAL DIAGRAM – Page 1/6

PAGE

NEG 0.0% ZERO V12^ V23

V23^ V31

V31^ V12

V1^ I1

V2^ I2

V3^ I3

0.0%

120.0°

60.0°

Fig. 68: Vectorial diagram total for 3-wire and ARON systems

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VEGA78

V1^ I1

60.0°

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PHASE1 DIAGRAM – Page 1/6

PAGE

Fig. 69: Vectorial diagram total for Single phase system

 The vectorial diagram of single voltages depending on the type of selected systems as

shown in below screens:

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VOLTAGES DIAGRAM – Page 2/6

PAGE

NEG 0.0% ZERO V1^ V2

V2^ V3

V3^ V1

0.0%

120.0°

Fig. 70: Vectorial voltage diagram for 4-wire system

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VOLTAGES DIAGRAM – Page 2/6

NEG 0.0% ZERO V12^ V23

V23^ V31

V31^ V12

0.0%

120.0°

PAGE

Fig. 71: Vectorial voltage diagram for 3-wire and ARON systems

 The vectorial diagram of currents for 4-wire, 3-wire and ARON systems as shown in:

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CURRENTS DIAGRAM – Page 3/6

PAGE

I1^ I2

I2^ I3

I3^ I1

120.0°

Fig. 72: Vectorial currents diagram for 4-wire, 3-wire and ARON systems

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VEGA78

 The vectorial diagram of voltage and current for each phase depending on the type of

system as shown in below screens:

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PHASE1 DIAGRAM – Page 4/6

V1^ I1

60.0°

PAGE

Fig. 73: Vectorial voltage-current diagram of L1 phase for 4-wire system

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PHASE2 DIAGRAM – Page 5/6

PAGE

V2^ I2

60.0°

Fig. 74: Vectorial diagram voltage-current of L2 phase for 4-wire system

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PHASE3 DIAGRAM – Page 6/6

V3^ I3

60.0°

PAGE

Fig. 75: Vectorial diagram voltage-current of L3 phase for 4-wire system

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PHASE1 DIAGRAM – Page 4/6

PAGE

V12^ I1

60.0°

Fig. 76: Vectorial diagram voltage-current of L1 phase for 3-wire and ARON systems

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PHASE2 DIAGRAM – Page 5/6

V23^ I2

60.0°

PAGE

Fig. 77: Vectorial diagram voltage-current of L2 phase for 3-wire and ARON systems

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PHASE3 DIAGRAM – Page 6/6

PAGE

V31^ I3

60.0°

Fig. 78: Vectorial diagram voltage-current of L3 phase for 3-wire and ARON systems

Pressing ESC key (or smart icon at display) to exit from each screen and back to the previous one.

 The vectors of voltages are referred to the external circle on each diagram

CAUTION

and the vectors of current are referred to second circle. The vectors’ sizes are designed so that the vector of maximum amplitude can touch the circle and the other vectors are scaled with respect to it proportionally to their amplitude.

 The rotation positive reference associated at each vectorial diagram is

clockwise.

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VEGA78

5.3. ANALYZER SETTINGS

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GENERAL MENU

Analyzer settings

Fig. 79: Analyzer settings screen

Inside this section the meter permits to perform basic and advanced selections relative to the type of electrical installation under test. In particular it is possible to:

 Select the type of system, the frequency, the kind of current clamp, the full scale of

current clamp and the VT ratio of external voltage transformer which can be connected with meter (Analyser Configuration).

 Setting the Manual mode for the customisation of full scale on graphic screen of Real

Time section, the type of harmonic to be shown on screens, the percentage or absolute values of harmonics, the harmonics zoom, the average calculation of voltages,

currents, active and reactive powers (Advanced Settings). We suggest the use of smart icons and in order to perform a complete interaction with the meter.

5.3.1. Analyzer Configuration screen

Inside the “Analyzer configuration” section a screen depending on the type of system selected by user during the last operation is shown by meter: The instrument is granted

for a correct measurement only in connection with the following electrical systems:

 Three phase system 4-wire WYE (three phase + neutral + ground).  Three phase system 3-wire DELTA (three phase + ground).  Three phase system 3-wire ARON DELTA (three phase + neutral + ground).  Single phase system (phase + neutral+ ground).

Below the possible screens of above systems’ options are described:

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ANALYZER CONFIGURATION

1 2 3 N

PE

System Freq [Hz] Clamp Type

4WIRE

50

FLEX

Clamp FS [A]

ADVANCED MOD(+) MOD(-)

VT Ratio

3000

1

Fig. 80: Analyzer configuration screen for 4-wire system

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ANALYZER CONFIGURATION

System

3WIRE

Freq [Hz] Clamp Type Clamp FS [A] VT Ratio

ADVANCED MOD(+) MOD(-)

50

FLEX

3000

1

Fig. 81: Analyzer Configuration screen for 3-wire system

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ANALYZER CONFIGURATION

ADVANCED MOD(+) MOD(-)

System Freq [Hz] Clamp Type Clamp FS [A] VT Ratio

ARON

50

FLEX

3000

1

Fig. 82: Analyzer Configuration screen for ARON system

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ANALYZER CONFIGURATION

System

SINGLE

Freq [Hz] Clamp Type Clamp FS [A] TV Ratio

ADVANCED MOD(+) MOD(-)

50 STD 1000

1

Fig. 83: Analyzer Configuration screen for Single phase system

The connection of input signals to meter are shown in the small synoptic circuit scheme on the left part of each screen depending on the system. For system selection perform the below steps:

1. Move the cursor using arrows keys on field relative to “System”, marked with blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select the type of system choosing among “4-WIRE”, “3-WIRE”, “ARON” or “SINGLE” options.

3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and confirm by “Ok”. This selected parameter will be present also after turning off the meter.

4. Press ESC key (or the smart icon ) to quit without saving any modification.

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5.3.1.1. Setting system frequency

1. Move the cursor using arrows keys on field relative to “Freq[Hz]”, marked with blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select the system frequency choosing between 50Hz or 60Hz options. This parameter is relevant ONLY if the input voltage not permits to recognize the frequency value (for example, only the clamps for the current measurement are connected). In this case the instrument generates an internal synchronism equal to the value of the set frequency.

3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and confirm by “Ok”. This selected parameter will be present also after turn off the meter.

4. Press ESC key (or the smart icon ) to quit without saving any modification.

5.3.1.2. Setting clamp type

This parameter must be always set equal to the clamp type used. Two types of clamps are available:

 STD: For Standard clamps or Current Transformer.  FLEX: For Flexible clamps.

1. Move the cursor using arrows keys on field relative to “Clamp Type”, marked with blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select clamp type choosing between STD or FLEX options.

3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and confirm by “Ok”. This selected parameter will be present also after turn off the meter.

4. Pressing ESC key (or the smart icon ) to quit without saving any modification.

5.3.1.3. Setting full scale of clamps

CAUTION

The value of this parameter must be always equal to the full scale of the current clamps used to take the measurement. In case multi-scale clamps are

used, the value of this parameter must be equal to the scale selected on the clamps.

1. Move the cursor using arrows keys on field relative to “Clamps F S [A]” , marked it with blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select the desired full scale

CAUTION

 In case of STD clamps any value can be set by using F3 or F4 keys

(alternatively touch MOD(+) o MOD(-)). In case of FLEX clamp only 300A or 3000A options are possible.

 In case of STD clamp measured values of current < 0.1%FS are zeroed  In case of FLEX clamp with 300A range, measured values of current <1A

are zeroed.

 In case of FLEX clamp with 3000A range, measured values of current <5A

are zeroed.

3. Press SAVE or ENTER keys (or the smart icon

) to save the selected option and

confirm by “Ok”. This selected parameter will be present also after turning off the meter.

4. Pressing ESC key (or the smart icon ) to quit without saving any modification.

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VEGA78

5.3.1.4. Setting VT ratio

The meter can be interfaced also with step-down transformers in the equipment under test. It can display the value of he voltages present on the primary winding of these transformers. To do this it will be necessary to set the value of the transformers’ windings ratio.

1. Move the cursor using arrows keys on field relative to “VT Ratio” , marked it with blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) for selec tion of desired value from 1 to 3000. Leave the default value “1” if no voltage transformer is present on installation.

3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and confirm by “Ok”. This selected parameter will be present also after turning off the meter.

4. Press ESC key (or the smart icon ) to to quit without saving any modification.

5.3.2. Advanced Settings screen

By pressing F2 key (or touch the “ADVANCED” at display) in any screen of “Analyzer Configuration” section, below screen is shown by meter:

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Zoom graphics MANUAL Harm. type ALL Harm. values ABSOLUTE Zoom 1st harm YES Average values NO

ADVANCED SETTINGS

MOD(+) MOD(-)

Fig. 84: Advanced Settings screen

In the above screen is possible to select advanced options which have effect in Real Time values screens of meter.

5.3.2.1. Zoom graphics option

This option permits to select a customized full scale on each phase of voltage and current waveforms (see Fig. 47, Fig. 49, Fig. 51) in order to better the resolution of readings.

1. Move the cursor using arrows keys on field relative to “Zoom graphics”, marked wit h blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select one of below options:

 MANUAL: define a customized full scale for waveforms’ visualization choosing

among the available values. A value included from 2.0A to 5000kA it’s set for current and included from 2.0V to 2000kV it’s set for voltage.

 AUTO: the full scale values are automatically modified by the meter.

3. Press SAVE or ENTER keys (or the smart icon

) to save the selected option and

confirm by “Ok”. This selected parameter will be present also the turn off of meter.

4. Press ESC key (or the smart icon

) to quit without saving any modification.

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5.3.2.2. Harmonics type option

This option permits to select the type of harmonics which can be shown inside Real Time values section.

1. Move the cursor using arrows keys on field relative to “Harm. type” , marked it with blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select one of below options:

 ALL: The meter shows all the harmonics up to the 49st.  EVEN: The meter shows all the even harmonics up to the 49st.  ODD: The meter shows all the odd harmonics up to the 49st.

3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and confirm by “Ok”. This selected parameter will be present also the turn off of meter.

4. Press ESC key (or the smart icon ) to quit without saving any modification.

CAUTION

Not depending on selected harmonics type for the visualization, the meter can performs the recording of all values in any case.

5.3.2.3. Harmonics values option

This option permits to select the value of harmonics which can be shown inside Real Time values’ section.

1. Move the cursor using arrows keys on field relative to “Harm. values” , marked it with blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select one of below options:

 ABSOLUTE: The meter shows the harmonics in absolute values (in V unit for

voltages and A unit for currents).

 PERCENTAGE: The meter shows the harmonics in percentage value respect each

fundamental.

3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and confirm by “Ok”. This selected parameter will be present also the turn off of meter.

4. Press ESC key (or the smart icon ) to quit without saving any modification.

CAUTION

Independently of the harmonics value selected for display, the meter can perform the recording of absolute values anyway.

EN - 40

VEGA78

5.3.2.4. Zoom with respect to the 1st harmonic option

This option permits to show harmonics graphics with a zoom relative to the first harmonic order (fundamental) or with a zoom relative to the highest amplitude harmonic inside the Real Time values section. Also in this case the aim is to better the final resolution of graphics.

1. Move the cursor using arrows keys on field relative to “Zoom 1st harm” , marked it with blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select one of below options:

 YES: The meter performs the graphics zoom respect to the first harmonic  NO: The meter performs the graphics zoom respect to the highest amplitude

harmonics except for the first harmonic. This option is active only if the zoom graphic option (see 5.3.2.1) is set on AUTO mode.

3. Press SAVE or ENTER keys (or the smart icon

) to save the selected option and

confirm by “Ok”. This selected parameter will be present also the turn off of meter.

4. Press ESC key (or the smart icon

) to quit without saving any modification.

5.3.2.5. Average value option

This option, available for 4-wire systems only, permits to display the arithmetic average of TRMS values of:

 Phase voltages V1, V2, V3.  Phase currents I1, I2, I3.  Active power on each phase P1, P2, P3.

The result is shown on Page 7/7 of numerical TRMS value (see Fig. 26).

1. Move the cursor using arrows keys on field relative to “Average values” , marked it with blue background.

2. Use F3 or F4 keys (alternatively touch MOD(+) o MOD(-)) to select one of below options:

 YES: The meter shows the page 7/7 of average values inside Real Time Values

section only for 4-wire systems.

 NO: The meter does not shows the page 7/7 of average values inside Real Time

Values section.

3. Press SAVE or ENTER keys (or the smart icon ) to save the selected option and confirm by “Ok”. This selected parameter will be present also the turn off of meter.

4. Press ESC key (or the smart icon ) to quit without saving any modification.

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VEGA78

5.4. RECORDING SETTINGS

12/09/2006 – 16:55:10

GENERAL MENU

Recording settings

Fig. 85: Recording Settings screen selection

In this section the meter permits to define any detail relative to start and stop of recordings, perform parameters selection for recording, the type of analysis to be carried out very easily thanks to “touch screen” display. The use of smart icons and is particularly recommended in this section.

5.4.1. Recording settings screen

This screen is designed with some levels and sub-levels as a typical tree Windows structure in order to reach with extreme details the desired options. After selection of “Recording settings” icon, see Fig. 85 the below screen is shown:

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

Cogenerations

+ General Parameters

85/251 Parameters – Autonomy: 388d 4h

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



Comments: GENERIC PLANT



Start:Manu



Stop:Manu



Integration Period:15 min



Fig. 86: Recording settings screen

Using up and down arrows keys or touching directly the items at display the selection/disable of internal flags inside check box is possible. Clic k on check box with “+” symbol to cause an expansion of structure with the opening of a new sub-level inside which new selections are possible. Click on check box with “-” symbol to go back to master level. The displayed selection/disable of parameters is performed in the following way:

 Grey text and empty check box  Node completely disabled.  Black text and empty check box  Node partially selected.  Black text and selected check box  Node completely selected.

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VEGA78

The bottom bar of display included the below functions, relative to F1, F2, F3, F4 keys:

 CLP/EXP: Used to collapse or expand the sub-levels.  PREDEF.: Used to open the typical configuration section (see § 5.4.9).  SEL: Used to select or disable parameters inside various levels.  MODIFY: Used to perform any parameters modify inside various levels.

On the bottom of display the number of selected parameters and the recording autonomy, expressed in days and hours, is shown by meter. These s are dynamically

updated from meter depending on the parameters selection.

5.4.2. Comments

These option permits to insert a short comment row at display which will compare also in print report downloaded from meter to PC. This comment text is set both using standard TopView software (for any information please refer to software Help on line) and by using the virtual keyboard on meter which is activated by pressing F4 key (or the MODIFY at display). The flag of this option is always active and not disabled.

5.4.2.1. Use of virtual keyboard

With the Comments: marked in blue background at display press F4 key (or the MODIFY at display). The below screen is shown at display:

12/09/2006 – 16:55:10

Comments:

Generic Plant

b c d e f g h

a

i j k l m n o p q r s t u v w x y z

Fig. 87: Virtual keyboard screen

The keys’ description of the above keyboard is shown in the below table:

Keys Description

a, b,c,…z

Cap

123

Sb

àž

<-

Standard small letters keyboard for digit comments up to 25 characters

Capital letters keyboard AZ is shown Numerical 09 besides mathematic operation symbols

(+,-,*,/,.,=) keyboard is shown Special symbols keyboard is shown. By pressing “abc” key to go back to standard small letter keyboard Special symbols with special stress keyboard are shown. Press “abc” key to go back to standard small letter keyboard Backspace key to cancel character on the left of the cursor

<- àž Sb 123 Cap

Table 1: Description of function key of virtual keyboard

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VEGA78

5.4.3. Start and Stop

These items permits to define the method to enable and disable the recordings with meter (see § 5.4.10). The possible options are:

 Manu: Each recording is enabled/disabled in MANUAL mode by pressing GO/STOP

key.

 Auto: Each recording is enabled/disabled in AUTOMATIC mode, starting from a setting

and valid date/hour by preliminary pressing of GO/STOP key.

The default configuration is always the MANUAL mode and the flags of these s are not disable. To change from MANUAL mode to AUTO mode (see § 5.4.10.1) performs the below steps:

1. Move the cursor using arrows keys on the field relative to “Start:Manu” or “Stop:Manu”, marked with blue background.

2. Press F4 key (alternatively touch the MODIFY at display). In the bottom of display a command bar with “Manu” is shown.

3. Press F3 key (MOD(+)) or F4(MOD(-)) and select “Auto” .

4. Use left or right arrows keys to moving on date and hour fields. Using the up arrow key or F3 (MOD(+)) key to increase the value and the down arrow key or F4 (MOD(-)) key to decrease the value.

5. Press SAVE or ENTER keys (or the smart icon ) to save the settings. The Automatic mode and the set date/hour are shown at display.

5.4.4. Integration period

This option permits to set the integration period (see § 10.5.1) which is the time interval between two sequential recordings within the global duration of measurements. The flag of this option is always active and not disabled.

1. Move the cursor using arrows keys on field relative to “Integration period” , marked it with blue background.

2. Press F4 key (alternatively touch the MODIFY at display). In the bottom of display a command bar with “Integration Period” is shown.

3. Press F3 key (MOD(+)) or F4(MOD(-)) or up and down keys to set the desired integration period choosing among the below values: 1s, 5s, 10s, 30s, 1min, 2min, 5min, 10min, 15min, 30min, 60min.

4. Press SAVE key or ENTER key (or the smart icon

) to save the settings. The

integration period value is shown at display.

5.4.5. Cogenerations

The selection of this , effected both by using up or down arrows keys and directly selecting the flag at display, enters the values of powers and energies generated (co-generation) in the list of recorded parameters (see § 10.4.1).

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VEGA78

5.4.6. General Parameters

This option permits the selection of network parameters for recording operation. This level included several sub-level for a detailed selection depending on the type of system on test (see § 5.3.1). Depending on the selection performed, different error screen can be shown by meter. The below situations are possible:

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

+ +

Error: no selected parameters

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS

General Parameters

Harmonics Voltage Anom.: 230V 6% -10% Unbalance



Fig. 88: General Parameters section: no selection

Fig. 88 shows the situation which the error due to no parameters selection is performed also if the “General Parameters” is selected at display. Please note the text on grey background and the not selected check box. In this situation other type of analysis as Harmonics, Voltage Anomalies, etc.. are not possible. Pressing F3 key (or touch “SEL” at display) to exit from this error condition. In this order the flag of “General Parameters” check box it will be selected and the below screen (with black text background) is shown:

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

+ +

96/251 Parameters – Autonomy: 9d 4h

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



General Parameters

Harmonics Voltage Anom.: 230V 6%-10% Unbalance



Fig. 89: General Parameters section: selected parameters

In example of the above picture 96 parameters are been selected on total of maximum 251

available and the correspondent autonomy is shown automatically by meter in this case.

CAUTION

The “General Parameters” check box activated flag, automatically select the main electrical parameters whose number depends on the selected system (Voltages, Currents, Frequency, Power Factor, Active, Reactive, Apparent Powers, Active, Reactive, Apparent Energies). The failure to select “General Parameters” flag automatically doe not select the above parameters.

EN - 45

VEGA78

The opposite situation is the error due to a too many selected parameters. In this case the below screen is shown:

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

+ +

Error: too many selected parameters 440/251

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



General Parameters



Harmonics

Voltage Anom.: 230V 6%-10% Unbalance



Fig. 90: General Parameters section: too many selected parameters

In the above screen (see Fig. 90) the harmonics' selection brought about too many selected parameters (more than 251). Not select some parameters to quit this situation.

CAUTION

The choose of a electrical for recording often increase the number of selected parameters more than one unit only. In particular:

 Frequency  1 selected parameter.  Voltage  from 1 to 7 selected parameter depend on system.  Current  from 1 to 4 selected parameter depend on system.  Powers and Energies  from 1 to 8 selected parameter depend on

system and Cogenerations.

 Power Factor  from 1 to 8 selected parameter depend on system and

Cogeneration.

 Harmonics: THD and DC  from 1 to 8 selected parameter depend on

system.

 Harmonics Odd  from 25 to 100 selected parameter depend on

system.

 Harmonics Even  from 24 to 96 selected parameter depend on

system.

 Voltage Anomalies  no selected parameters.  Unbalance  1 selected parameter.

EN - 46

VEGA78

5.4.6.1. General Parameters: sub-levels description

Press F1 key (or touch CLP/EXP at display) to expand or compress the sub-levels. The parameters inside sub-levels are strictly depending on type of selected system (see §

5.3.1). Below there are some pictures of different possible situations:

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

-

+  Currents +  Active Power&Energy

8/251 Parameters – Autonomy: 109d 0h

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



General Parameters 

Frequency



-

Voltages



Phase 1-Neutral



Fig. 91: General Parameters sub-level - Single phase system

Each parameter is always selectable independent from others. The below parameters can be selected for recording in Single phase systems:

Parameter Description

Frequency Frequency of phase L1 Voltages TRMS voltages L1-N and N-PE Currents TRMS current phase L1 Active Power & Energy Active power and energy of phase L1

Reactive Power & Energy

Reactive (inductive or capacitive) power and energy

of phase L1 Apparent Power & Energy Apparent power and energy of phase L1 Power Factor Power factor of phase L1

CosPhi

Power factor referred to fundamental of voltage and

current of phase L1

Table 2: Selectable parameters for Single phase system

Press SAVE or ENTER keys (or the smart icon

) to save each selection and confirm by “Ok”. The main screen of Fig. 85 is shown by meter at the end of the operation. Press ESC key (or the smart icon

) to quit without saving and back to previous screens.

12/09/2006 – 16:55:10



-

Phase2-Neutral Phase3-Neutral

32/250 Parameters – Autonomy: 27d 6h

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



General Parameters 

Frequency



-

Voltages



Phase1-Neutral



Fig. 92: General Parameters sub-level - Three phase 4-wire system

EN - 47

VEGA78

The below parameters can be selected for recording in Three phase 4-wire systems:

Parameters Description

Frequency Frequency of phases L1, L2, L3 Voltages

TRMS voltages L1-N, L2-N, L3-N, N-PE

TRMS voltages L1-L2, L2-L3, L3-L1 Currents TRMS currents L1, L2, L3, Neutral Active Power & Energy Active power and energy L1, L2, L3, Total

Reactive Power & Energy

Reactive (inductive or capacitive) power and energy

L1, L2, L3, Total Apparent Power & Energy Apparent power and energy L1, L2, L3, Total Power Factor Power factor L1, L2, L3 Total

CosPhi

Power factor referred to fundamental of voltage and

current L1, L2, L3, Total

Table 3: Selectable parameters for Three phase 4-wire system

Press SAVE or ENTER keys (or the smart icon ) to save each selection and confirm by “Ok” . The main screen of Fig. 85 is shown by meter at the end of the operation. Press ESC key (or the smart icon ) to quit without saving and back to previous screens.

12/09/2006 – 16:55:10



-

Phase2-PE Phase3-PE

30/251 Parameters – Autonomy: 28d 13h

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



General Parameters 

Frequency



-

Voltages



Phase1-PE



Fig. 93: General Parameters sub-level - Three phase 3-wire system

The below parameters can be selected for recording in Three phase 3-wire systems:

Parameters Description

Frequency Frequency of phases L1, L2, L3 Voltages

TRMS voltages L1-PE, L2-PE, L3-PE

TRMS voltages L1-L2, L2-L3, L3-L1 Currents TRMS currents L1, L2, L3 Active Power & Energy Active power and energy L1, L2, L3, Total

Reactive Power & Energy

Reactive (inductive or capacitive) power and energy

L1, L2, L3, Total Apparent Power & Energy Apparent power and energy L1, L2, L3, Total Power Factor Power factor L1, L2, L3 Total

CosPhi

Power factor referred to fundamental of voltage and

current L1, L2, L3, Total

Table 4: Selectable parameters for Three phase 3-wire system

EN - 48

VEGA78

Press SAVE or ENTER keys (or the smart icon ) to save each selection and confirm by “Ok”. The main screen of Fig. 85 is shown by meter at the end of the operation. Press ESC key (or the smart icon ) to quit without saving and back to previous screens.

12/09/2006 – 16:55:10



-

Phase2-Phase3 Phase3-Phase1

22/251 Parameters – Autonomy: 38d 16h

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



General Parameters 

Frequency



-

Voltages



Phase1-Phase2



Fig. 94: General Parameters sub-level - Three phase 3-wire ARON system

The below parameters can be selected for recording in Three phase 3-wire ARON systems:

Parameters Description

Frequency Frequency of phases L1, L2, L3 Voltages TRMS voltages L1-L2, L2-L3, L3-L1 Currents TRMS currents L1, L2, L3 Active Power & Energy Active power and energy L1-L2, L3-L2, Total

Reactive Power & Energy

Reactive (inductive or capacitive) power and energy

L1-L2, L3-L2, Total Apparent Power & Energy Apparent power and energy L1-L2, L3-L2, Total Power Factor Power factor L1-L2, L3-L2, Total

CosPhi

Power factor referred to fundamental of voltage and

current L1-L2, L3-L2, Total

Table 5: Selectable parameters for Three phase 3-wire ARON system

Press SAVE or ENTER keys (or the smart icon ) to save each selection and confirm by “Ok”. The main screen of Fig. 85 is shown by meter at the end of the operation. Press ESC key (or the smart icon ) to quit without saving and back to previous screens.

EN - 49

VEGA78

5.4.6.2. Harmonics: sub-levels description

Press F1 key (alternatively touch CLP/EXP at display) to expand or compress the harmonics sub-levels. The parameters inside sub-levels are strictly depending on type of selected system (see § 5.3.1). Below there are some pictures of different possible situations:

12/09/2006 – 16:55:10



-

+ Odd + Even

162/251 Parameters – Autonomy: 19d 0h

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



Harmonics 

-

Voltages



THD



DC



Fig. 95: Harmonics sub-levels: initial parameters selection

Inside Harmonics level there is another sub-level where an accurate selection of harmonic parameters is possible. Move the cursor on “Odd” or “Even” using arrows key and press F1 key (or touch CLP/EXP at display). The result, referred to Odd harmonics is below shown:

12/09/2006 – 16:55:10



162/251 Parameters – Autonomy: 19g 0h

CMP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



-

Odd



Harmonic1



Harmonic3



Harmonic5



Harmonic7



Harmonic9



Fig. 96: Harmonics sub-levels: odd harmonics selection

Press F3 key (alternatively touch SEL at display) to select/unselect the desired parameters. The number of selected and recording autonomy are automatically updated from meter. The below harmonic parameters can be selected for recording (see § 10.2):

Type of system Selectable parameters

Single phase Three phase 4-wire Three phase 3-wire

Three phase 3-wire ARON

THD%, DC, h01h49 (V1N, VN-PE, I1)

THD%, DC, h01h49 (V1N, V2N, V3N, VN-PE, I1, I2,

I3, IN)

THD%, DC, h01h49 (V12, V23, V31, I1, I2, I3)

Table 6: Selectable parameters of harmonic analysis

EN - 50

VEGA78

Press SAVE or ENTER keys (or the smart icon ) to save each selection and confirm by “Ok”. The main screen of Fig. 85 is shown by meter at the end of the operation. Press ESC key (or the smart icon ) to quit without saving and back to previous screens. The selection parameters of harmonic analysis require the preliminary selection of voltages or currents inside General Parameter sub-level. The below error screen are shown in these cases:

12/09/2006 – 16:55:10



+  Voltages +  Currents

Unbalance

Error: no selected current

CLP/EXP TYPICAL SEL MODIFY

RECORDING SETTINGS



Harmonics

Voltage Anom.: 230V 6%-10%



Fig. 97: No selected currents error screen

To solve the error (see Fig. 97) situation of above screen select the “Current” inside “General Parameter” sub-level (see § 5.4.6.1).

12/09/2006 – 16:55:10



+  Voltages +  Currents

Unbalance

Error: no selected voltage

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



Harmonics

Voltage Anom.: 230V 6%-10%



Fig. 98: No selected voltages error screen

To solve the error (see Fig. 98) situation of above screen select the “Voltages” inside “General Parameter” sub-level (see § 5.4.6.1).

5.4.7. Voltage Anomalies

This option permits to set the control parameters relative to voltage anomalies (sags, swell, supply breaks – see § 10.1) recording which is completely independent from periodic analysis (regulated by integration period). The below screen is shown by meter:

12/09/2006 – 16:55:10



+ +

132/251 Parameters – Autonomy: 15d 12h

CLP/EXP PREDEF. SEL MODIFY

RECORDING SETTINGS



General Parameters Harmonics



Voltage Anom.: 230V 6%-10%

Unbalance



Fig. 99: Voltage Anomalies selection screen

EN - 51

VEGA78

Press F4 key (alternatively touch MODIFYat display) for setting the below voltage anomalies parameters:

 Reference nominal voltage Vref depending on the type of considered system. In

particular Vref = VP-N (Single phase and three phase 4-wire systems), Vref = VP-P (three phase 3-wire and ARON systems).

 The higher threshold percentage of reference nominal voltage, selectable from 1% to

30% for voltage swell detection.

 The lower threshold percentage of reference nominal voltage, selectable from 1% to

30% for voltage sags or breaks detection.

12/09/2006 – 16:55:10



+ +

Voltage Anom.: 230V 6% 10%

RECORDING SETTINGS



General Parameters Harmonics



Voltage Anom.: 230V 6%-10%

Unbalance

MOD(+) MOD(-)



Fig. 100: Voltage Anomalies screen - setting control parameters

1. Move the cursor using arrows keys on field relative to “ Voltage Anom.” , marked it with blue background.

2. Use up or down arrow keys or press F3 or F4 keys (alternatively touch the MOD(+) or MOD(-) s at display) to setting the correspondent value. Pressing and holding of these keys permits a rapid values setting, while the single pressure increase or decrease on only unit the value. Use left or right arrow keys to move on various fields.

3. Press SAVE or ENTER keys (or the smart icon ) to save each performed setting.

CAUTION

The nominal reference value should be set depending on the type of considered system on test and the measured voltage. A message “Wrong Vref voltage anomalies” at the recording start is shown by meter which do not permits the recording operation due to this wrong configuration (e.g.: 4wire system and Vref = 400V). Set the correct value in this case.

5.4.8. Unbalance

The selection of this option include on selected parameters list for recording the value of NEG% and ZERO% s which are index of unbalance of input voltage signal respective to negative tern and zero term (see § 10.3). “Unbalance” is not shown for single phase systems.

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VEGA78

5.4.9. Predefined configurations

In order to make the recording start easier the meter includes 5 selectable predefined configurations which describe typical situation in electrical installations, besides a “Default” configuration which defines the initial settings from the factory. The meter also permits to define up to 16 free configuration which can be customized, saved and recalled by user at any time. The selection of one of these configurations automatically sets only the necessary parameters for recording operation under that circumstance. The predefined configurations are:

1. DEFAULT: Setting parameters of default configuration from the exit of meter by factory.

2. VOLTAGE ANOMALIES: Setting parameters for voltage anomalies recording only (sags, swells, breaks – see § 10.1).

3. HARMONICS: Setting parameters for voltages and currents harmonic analysis (see §

10.2).

4. POWER & ENERGY: Setting parameters for power and energy measures (see § 10.4).

Pressing F2 key (or touch PREDEF. at display) in any “Recording Settings” screen. The meter show the below screen:

12/09/2006 – 16:55:10

PREDEFINED CONFIGURATIONS

Typical Configuration

DEFAULT



VOLTAGE ANOMALIES

HARMONICS POWER & ENERGY

ADD REM

Fig. 101: Typical configuration screen

Select the desired typical configuration using up or down arrow keys or touch display. Press SAVE or ENTER keys (or the smart icon

) to save the desired selection. The warning message ”Change recording setting?” is shown by meter. Press “Ok” to confirm. The meter automatically sets the parameters and updated the recording autonomy at display. To add a predefined customized configuration press the F1 key (or the ADD at display). The warning message “Add actual configuration” is shown by meter. Press “Ok” to confirm and activate automatically the virtual keyboard (see § 5.4.2.1) where it’s possible to define and save the configuration name by user. At the end of these operations the following screen is shown by meter:

12/09/2006 – 16:55:10

PREDEFINED CONFIGURATIONS

Typical Configuration 

VOLTAGE ANOMALIES HARMONICS POWER & ENERGY



GENERIC PLANT

ADD REM



Fig. 102: Typical customized configuration screen

EN - 53

VEGA78

In the example of Fig. 102 the typical customized configuration called “GENERIC PLANT” was defined and can be loaded by pressing the SAVE or ENTER keys (or the smart icon

). This configuration cab be removed in any time by pressing F2 key (or the REM at display). The warning message “Delete selected configuration?” is shown by meter. Press “Ok” to complete the operation. Please note that the 5 predefined configuration and the DEFAULT configuration cannot be removable by user.

Press ESC (or the smart icon ) to quit without saving any modify. Below the selected parameters for each of predefined configuration are shown:

VOLTAGE ANOMALIES

MENU GENERAL PARAMETER SETTINGS SYSTEM

System

Freq[Hz]

Analyzer Settings

Analyzer Settings - Advanced

Recording Settings

Clamp Type

FS Clamp[A]

VT Ratio

Zoom Graphics

Harm. Type

Harm. Values Zoom 1st Harm. Average Values

Comments VOLTAGE ANOMALIES

Start Not modified Stop Not modified

Integration period 1min

Cogeneration OFF

General Parameters

Voltage harmonics OFF

Current harmonics OFF Voltage anomalies ON

Ref. Voltage anomalies

Up threshold anomalies +6%

Low threshold anomalies -10%

Unbalance

Not modified Each system

V1N, VN-PE, Hz Single phase

V12, V23, V31, Hz 3-wire, ARON

V1N, V2N, V3N, VN-PE,

Average (if activated), Hz

230V Single, 4-wire 400V 3-wire, ARON

Not available Single phase

ON 3/4-wire, ARON

Each system

4-wire

Each system

Table 7: Selected parameters of VOLTAGE ANOMALIES configuration

EN - 54

VEGA78

HARMONICS

MENU GENERAL PARAMETER SETTINGS SYSTEM

System

Freq[Hz]

Analyzer Settings

Analyzer Settings - Advanced

Recording Settings

Clamp Type

FS Clamp[A]

VT Ratio

Zoom Graphics

Harm. Type

Harm. Values

Zoom 1st Harm.

Average Values

Comments HARMONICS

Start Not modified

Stop Not modified

Integration period 10min

Cogeneration OFF

General Parameters

Voltage harmonics THD, DC, h1, h2, h3…h25

Current harmonics THD, DC, h1, h2, h3…h25 Voltage anomalies OFF

Ref. Voltage anomalies

Up threshold anomalies OFF

Low threshold anomalies OFF

Unbalance

Not modified Each system

V1N, VN-PE, I1, Hz Single phase

V1-PE, V2-PE,

V3-PE, V12, V23, V31

I1, I2, I3, Hz

V12, V23, V31

I1, I2, I3, Hz

V1N, V2N, V3N, VN-PE,

I1, I2, I3, IN, Hz

OFF Single, 4-wire OFF 3-wire, ARON

Not available Single phase

OFF 3/4-wire, ARON

Each system

3-wire

ARON

4-wire

Each system

Table 8: Selected parameters of HARMONICS configuration

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POWER & ENERGY

MENU GENERAL PARAMETER SETTINGS SYSTEM

System

Freq[Hz]

Analyzer Settings

Analyzer Settings Advanced

Recording Settings

Clamp Type

FS Clamp[A]

VT Ratio

Zoom Graphics

Harm. Type

Harm. Values

Zoom 1st Harm.

Average Values

Comments POWER & ENERGY

Start Not modified Stop Not modified

Integration period 15min

Cogeneration ON

V12, V23, V31, I1, I2, I3, Hz V12, V23, V31, I1, I2, I3, Hz ARON

V1N, V2N, V3N, V12, V23, V31,I1, I2, I3,

P1, Q1i, Q1c, S1, Pf1, Cosphi1, Ea1,

General Parameters

Voltage harmonics OFF

Current harmonics OFF Voltage anomalies OFF

Ref. Voltage anomalies

Up threshold anomalies OFF

Low threshold anomalies OFF

Unbalance

Pt, P1, P2, P3, Qti, Qti1, Qti2, Qti3, Qtc,

Qtc1, Qtc2, Qtc3, St, S1, S2, S3, Pft,

Pf1, Pf2, Pf3, Cosphit, Cosphi1,

Cosphi2, Cosphi3, Eat,Eat1, Eat2, Eat3,

Erit, Eri1, Eri2, Eri3, Erct, Erc1, Erc2,

Pt, P12, P32, Qti, Q12i, Q32i, Qtc, Q12c,

Q32c, St, S12, S32, Pft, Pf12, Pf32,

Cospht, Cosphi12, Cosphi32, Eat, Ea12,

Ea32, Erit, Eri12, Eri32, Erct, Erc12,

Not modified Each system

V1N, I1 Single phase

V1-PE, V2-PE, V3-PE,

IN, Hz

Eri1, Erc1

Erc3

Erc32

OFF Single, 4-wire OFF 3-wire, ARON

Not available Single phase

OFF 3/4-wire, ARON

Each system

3-wire

4-wire

Single phase

3-wire, 4-wire

ARON

Each system

Table 9: Selected parameters of POWER & ENERGY configuration

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DEFAULT CONFIGURATION

MENU GENERAL PARAMETER SETTINGS

System 4-wire

Freq[Hz] 50

Analyzer Settings

Analyzer Settings Advanced

Recording Settings

Down threshold anomalies -10%

Clamp Type FLEX

FS Clamp[A] 3000

VT Ratio 1

Zoom Graphics AUTO

Harm. Type ALL

Harm. Values ABSOLUTES Zoom 1st Harm. YES Average Values NO

Comments DEFAULT

Start Manu

Stop Manu

Integration period 15min

Cogeneration OFF

V1N,V2N,V3N,VN-PE,V12,V23,V31,

I1, I2, I3, IN, Hz

Pt, P1,P2,P3, Qti, Qi1, Qi2, Qi3, Qtc, Qc1,

General Parameters

Voltage harmonics THD, DC, h1, h2, h3…h11 Current harmonics THD, DC, h1, h2, h3…h11 Voltage anomalies ON

Ref. Voltage anomalies 230V

Up threshold anomalies +6%

Unbalance ON

Qc2, Qc3, St, S1, S2, S3, Pft, Pft1, Pft2, Pft3,

Cosphit, Cosphi1, Cosphi2, Cosphi3, Eat,

Ea1, Ea2, Ea3, Erit, Eri1, Eri2, Eri3, Erct,

Erc1, Erc2, Erc3

Table 10: Parameters of default configuration

CAUTION

The DEFAULT configuration defines the selection of parameters on meter from the factory, as shown in Table 10. Each new modification performed and saved by the user on “Analyser Settings” section replaces this configuration with new selection which can be different from the default standard.

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5.4.10. Start a recording

The meter is designed to start a recording in MANUAL or AUTOMATIC mode (see § 5.4.3) by pressing of GO/STOP key. A recording operation can be started exclusively under the following screens:

 MENU GENERAL (with any selected icon).  Real Time Values (in any internal screen).

12/09/2006 – 16:55:10

GENERAL MENU

12/09/2006 – 16:55:10

SCOPE VOLTAGES – Page 1/5

Fs 400.0V V1 223.4V

V2 228.5V

V3 225.7V

Vn 0.0V

Meter information

PAGE

Fig. 103: Example of screens for recording starting

Before starting a recording press ESC key (or the smart icon ) until you get a picture as shown in Fig. 103.This operation can be performed in the below ways:

 MANUAL: Recording will start at the following minute after pressing GO/STOP key.  AUTO: After the (necessary) pressing of GO/STOP key the meter stands-by

until the set Date/Hour (see § 5.4.3) and then start automatically the recording.

The waiting and recording run status are marked by meter with dedicated icons which are present on the top right of display, as shown in below picture:

12/09/2006 – 16:55:10

GENERAL MENU

12/09/2006 – 16:55:10

GENERAL MENU

Meter information

Fig. 104: Meter waiting for recording

Meter information

Fig. 105: Meter in recording run

Press again GO/STOP key to stop the recording run in any time. The icon shown in Fig. 105 disappear.

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CAUTION

For recordings ALWAYS use the external power supply even though the instrument allows the operator to perform a recording using internal batteries.

After starting a recording a preliminary real time evaluation about the situation on electrical installation it’s important in order to perform a correct settings, using the predefined configurations (see § 5.4.9) if necessary. The below warning message can be shown by meter after pressing of GO/STOP key:

Warning

Too many selected parameters

Fig. 106: Warning message of too many selected parameters

In this case of too many parameters were selected it is necessary to disable them inside “Recordings Settings” section in order to start a correct recording. After pressing GO/STOP key a possible warning message window is shown by meter. Inside this window message the internal item can be different as for type and number. This warning message, which does not block the recording start, is important for user to correct possible errors performed during meter’s setting:

Warning

Missed external adapter Wrong phase sequence

Negative active powers Wrong Vref voltage anomalies

Ok

Cancel

Fig. 107: Warning message errors screen

Below the meaning of the above s of warning windows screen:

Type of error Description

Missed external adapter

Connect the external adapter to meter before start recording The value of “SEQ” parameter in Real Time Values

Wrong phase sequence

section (see § 5.2.1) is different from the correct “123”. Check the phase sequence value of V1, V2, V3 voltages One or more values of P1, P2, P3 Active Powers is negative (see § 5.2.1). Reversing if necessary the

Negative active powers

transducer clamps of 180 degrees on phase cables in order to obtain always positive values (except cogeneration cases) The nominal reference voltage value for voltage

Wrong Vref voltage anomalies

anomalies is not compliance to the type of selected system (see § 5.4.7)

Table 11: Description of errors before start a recording

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Depending on the type and number of errors, the necessary modifications of setting parameters should be performed. Press GO/STOP key again to start recording and verify the possible residual error on window message.

Confirm with ENTER or press “Ok” or “Cancel” keys to close the warning window message and start the recording by pressing GO/STOP key anyway.

As the default value of the integration periods is set at 15min (see § 10.5.1) the meter will store data in the temporary memory for this time. Afterwards the meter will process the results saved in the temporary memory and will save the first series of values in the definitive memory. Therefore, if an integration period of 15 minutes has been set, the recording will continue for about 15 minutes before producing a series of recorded values

CAUTION

Let the meter record for at least one integration period in order to save a valid value. If the recording is interrupted before the selected integration period has completely elapsed the data stored in the temporary memory will not be processed and the corresponding series of values won’t be transferred to the definitive memory.

5.4.10.1. Automatic start of recording

To start a recording under automatic mode a preliminary definition of a correct starting Date/Hour, compatible with system date, is needed inside “Recorder Settings” section (see

§ 5.4). The below screen is shown:

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

Cogeneration

+ General Parameters

Start: Auto 12 / 09 / 06 – 17 : 00 : 00

RECORDING SETTINGS



Comments: POWER & ENERGY



Start:Auto 12/09/2006 – 16:30



Stop:Manu



Integration Period:15 min

MOD(+) MOD(-)

12/09/2006 – 16:55:10

RECORDING SETTINGS







+ General Parameters

Error: wrong start date

CMP/EXP PREDEF. SEL MODIFY

Comments: POWER & ENERGY



Start:Auto 12/09/2006 – 16:30



Stop:Manu



Integration Period:15 min

Cogeneration



Fig. 108: Correct Date/Hour

Fig. 109: Wrong Date/Hour

1. Move the cursor using arrows keys on field relative to “Start” (and or the “Stop” ), marked them with blue background.

2. Press F4 key (alternatively touch the MODIFY at display). In the bottom of display a command bar with “Manu” is shown. Press F3 key (MOD(+)) or F4(MOD(-)) and select “Auto” .Use left or right arrows keys to move on date and hour fields. Using the up arrow key or F3 (MOD(+)) key to increase the value and the down arrow key or F4 (MOD(-)) key to decrease the value. Set a correct Date/Hour as shown in Fig. 108.

3. Press SAVE or ENTER keys (or smart icon ) to saving the settings. The screen of Fig. 109 is shown if a wrong Date/Hour is set. Under this condition the SAVE key does not have any effect. Repeat the steps 2 and 3 and set corrects values before pressing SAVE key again.

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5.4.11. During a recording

After a recording is running, a check of parameters’s values and status is shown by meter

12/09/2006 – 16:55:10

GENERAL MENU

Recording results

Fig. 110: Recording Results screen - Recording running

1. Select “Recording Results” in GENERAL MENU

2. Pres ENTER or touch the correspondent icon at display. The below screen is shown:

12/09/2006 – 16:55:10

Autonomy: 0 days –22 hours  Comments: HARMONICS

Start: 12/09/2006 16:57:00 Stop: Manual Integration Period: 5 sec Num. Periods: 345 Anomalies: 0

MODIFY

INFO RECORDING RUNNING



Fig. 111: Info recording running screen

3. The below information are included in the above screen:

 Recording autonomy, in Days/Hours, of meter with the currents selections per formed.  Comments included in the relative section (see § 5.4.2).  Type of recording start and recording stop  Real time information about integration period performed by meter  Enable of cogeneration.  Number of recorded voltage anomalies.  Type of selected system  Type of used clamp and the full scale of used clamp  Ratio of eventual external VT used.

4. Pressing ESC key (or the smart icon ) to quit from the above screen.

Each recording running is stopped and results are automatically saved by meter by pressing of GO/STOP key or as soon as the date/hour of automatic stop is reached.

 The only “Real Time Values” section is available during a recording

CAUTION

running. The message “Menu not available in recording” is shown by meter if any section is selected. Stop recording pressing GO/STOP key before select any section.

 ON/OFF key is disabled during a recording running. The message “

Recording running. Not available function” is shown by meter. Stop recording pressing GO/STOP key before pressing this key.

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5.5. SAVED DATA MANAGEMENT SECTION

Fig. 112: GENERAL MENU - Saved Data Management

The “Saved Data Management” section allows the user to check the content of the internal memory after recording, to delete previous recordings and possibly to copy a recording (one at a time) on an external USB Pen Driver connected to the instrument. By pressing the ENTER key or selecting the icon on the display, the instrument shows the following screen:

Fig. 113: Saved data

The instrument performs the following types of recordings:  Reg type: Recordings performed and saved automatically, both in manual and

automatic mode, of each analysis (Periodics, Harmonics, Voltage Anomalies, etc…) by pressing the GO/STOP key.

 Istant type: Instant samplings of the values displayed (numerical, waveforms,

harmonics, etc…) performed by pressing the SAVE key.

Each line of the “Saved Data Management” screen includes, further to the type of data saved in the memory, also the information on the starting and stopping date of the event, respectively “Time1” and “Time2” for Reg-type recordings, while date and time are indicated for Istant instant sampling. The following operations are possible only on the screen in Fig. 113:

1. Use the up and down a rrow keys to highlight (blue background) one of the recordings

on the screen. Press the F1 key (or the INFO item on the display). The instrument shows the screen containing the main information regarding the recording performed as described in § 5.5.1.

2. Press the F3 key (or the CANC.ULT item on the display) to delete the last saved

recording. The instrument shows the message “Delete last recording?”. Confirm the operation with “Ok” or “Cancel” to go back to the screen.

3. Press the F4 key (or the CANC.TOT item on the display) to delete all recordings in

the memory. The instrument shows the message “Delete all recordings?”. Confirm the operation with “Ok” or “Cancel” to go back to the previous screen.

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5.5.1. Recording analysis (Reg type)

This page shows the analyses which can be performed on the saved data (Reg type).

Fig. 114: Recording analysis (Reg-type data)

1. Use the up and down arrow keys to highlight on blue background one of the analyses

on the screen. Press the F1 or ENTER key (or the OPEN item or the smart icon on the display) to confirm the type of analysis to be performed.

2. Press the ESC key (or the smart icon ) to exit the function and go back to the “Saved

data” page (Fig. 113).

5.5.1.1. Recording information

This page contains general information about the recording (Reg) file previously selected in the Saved Data Management MENU.

Fig. 115: Recording info

1. In these conditions, the F1 key (or the MODIFY key on the display) is active and it is

possible to modify and save the comment line by using the virtual keyboard (see §

5.4.2.1).

2. Press the ESC key (or the smart icon ) to exit the function and go back to the

“Recording analysis” page (Fig. 114).

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5.5.1.2. Recording graph

By selecting the recording graph option, the following page is accessed, which enables the user to display the recording trend (ONLY ONE parameter at a time).

Fig. 116: Selecting a parameter

1. Press the F1 key (or the PARAM item on the display) to access the page containing

the recorded quantities available for the analysis (Fig. 117).

Fig. 117: Parameter selection

The following keys are active on this page:

 The up and down arrow keys move the cursor along the quantity tree.  The F1 key (or the CMP/EXP item on the dislay) compresses and expands the tree of

the quantity highlighted by the cursor.

 The F2 key (or the SEL item on the dislay) selects or deselects the parameter

highlighted by the cursor.

 The ENTER key (or the smart icon on the display) confirms the selection previously

made and displays the graph of the selected parameter (Fig. 118).

 The CANC key deselects the parameter previously selected, independently from the

position of the cursor.

 The ESC key (or smart icon ) to exit the function and go back to the “Selecting a

parameter” page (Fig. 116).

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VEGA78

This page shows the graph, the cursor position (cursor T) and the maximum, minimum and average RMS values of the parameter selected by the cursor.

Fig. 118: Recording graph

The following keys are active on this page:  F1 key (or PARAM item on the display) to access the page of the selectable

parameters (Fig. 117).

 F4 key (or OPTIONS item on the display) to access the page for the activation of the

“Advanced graph” (Fig. 119).

 The ESC key (or smart icon ) to exit the function and go back to the “Recording

analysis” page (Fig. 114).

2. Press the F4 key (or the OPTIONS item on the display) to access the page for the

activation of the Advanced graph (Fig. 119).

Fig. 119: Options (Advanced graph)

The following keys are active on this page:  The F3 and F4 keys (or the MOD(+) and MOD(-) items on the display) enable the user

to choose YES or NO for the advanced graph.

 The ENTER key (or the smart icon

on the display) confirms the selection previously

made.

 The ESC key (or smart icon

) to exit the function and go back to the “Selecting a

parameter” page (Fig. 116).

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VEGA78

Example of advanced graph.

Let us take a recording of 2000 pixels into consideration. The VEGA78 has a display with a useful resolution of about 200 pixels; therefore, it is not able to distinctly display all the pixels in our recording. How does it operate then? The first pixel in the graphs of the curves “Max value”, “Average value” and “Min value” will be the analysis of the 10 first corresponding pixels of the recording, i.e.:  For the Max value graph, the highest value of the 10 recorded values for the

corresponding channel will be displayed.

 For the Min value graph, the lowest value of the 10 recorded values for the

corresponding channel will be displayed.

 For the Average value graph, the first value of the 10 recorded values for the

corresponding channel will be displayed.

Similarly, the second pixel will be the analysis of the following 10 pixels, and so on until the whole graph is generated.

3. Press the ESC key (or the smart icon ) to exit the function and go back to the

“Selecting a parameter” page (Fig. 116).

5.5.1.3. Dips ans swells

This page shows a table containing all voltage anomalies occurred during recording.

Fig. 120: Dips ans swells

Column description:

N.: Progressive number of the anomaly. L.: Phase in which the anomaly occurred. Date/Time: Date/time at which the anomaly occurred. Max/Min: Maximum/minimum value of the anomaly. Duration: Duration of the anomaly. Type: Type of anomaly (voltage reduction or overvoltage).

The following keys are active on this page:

 The up and down arrow keys move the cursor along the voltage anomalies.  The up and down arrow keys move the column display to the right or to the left.  The F1 key (or the PAG item on the display) advances to the following page of voltage

anomalies (to be selected with the F3 or F4 key or through the items MOD (+) or MOD (-) on the display).

 The F2 key (or the PARAM item on the display) accesses the page showing the

settings for voltage anomalies (Fig. 121).

 The ESC key (or smart icon ) to exit the function and go back to the “Recording

analysis” page (Fig. 114).

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VEGA78

This page shows the parameters set before recording voltage anomalies:

Fig. 121: Voltage Anomalies

The following non-modifiable parameters are indicated (as they have been set upon starting the recording).

Nominal Voltage: Nominal voltage. High Voltage: Limit high voltage. Low Voltage: Limit low voltage. TV: Transformation ratio of the voltage transformers.

This page also shows the total number of voltage anomalies occurred (Number of Anomalies).

The following keys are active on this page:

 The up and down arrow keys move the cursor alternatively on Type or Phase.  The F3 and F4 keys (or the MOD(+) and MOD(-) items on the display) enable the user

to filter the anomalies to be selected. It is possible to select All, Up, Down, Int (if the cursor highlights Type) and All, Phase1, Phase2, Phase3 (if the cursor highlights Phase).

 The ENTER key (or the smart icon on the display) confirms the selection previously

made and displays the table of voltage anomalies.

 The ESC key (or the smart icon

) to exit the functions and go back to the “Anomalies”

page (Fig. 120).

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VEGA78

5.5.1.4. Analysis of consumed energy

This page shows the Energy and Peak power values consumed while recording

25/01/2013 – 16:55:10

TOT. ENERGY CONSUMPTION – Pag x/y

Eact = 15 Wh Ppeak = 1.31 kW Date Ppeak : 21/01/13 16:45:00 Start rec. : 21/01/13 16:45:00 Stop rec. : 21/01/13 18:00:00 Rec. Time : 00d 1h 15m Int. Per. : 15m

PAGE SCOPE HARM VECTORS

Fig. 122: Screen of total consumed energy

Description of the displayed values:

Eact: Total active power consumed while Recording. Ppeak: Max. active power peak (measured on 16 periods of mains frequency)

consumed while recording

Date Ppeak: Date and time in which the power peak occurred Start rec.: Starting date of the recording Stop rec.: Stopping date of the recording Rec. Time Recording time expressed in days (d), hours (h) and minutes (m) Int. Per: Set integration period value

CAUTION

The Total Consumed Energy page is shown only if general parameter Total “Active Power & Energy” has been recorded (see § 5.4.6.1).

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VEGA78

5.5.1.5. Analysis of producted energy

This page shows the Energy and Peak power values producted while recording

25/01/2013 – 16:55:10

TOT. ENERGY PRODUCTION – Pag x/y Eact = 15 Wh Ppeak = 1.31 kW Date Ppeak : 21/01/13 16:45:00 Start rec. : 21/01/13 16:45:00 Stop rec. : 21/01/13 18:00:00 Rec. Time : 00d 1h 15m Int. Per. : 15m

PAGE SCOPE HARM VECTORS

Fig. 123: Screen of total producted energy

Description of the displayed values:

Eact: Total active power produced while Recording. Ppeak: Max. active power peak (measured on 16 periods of mains frequency)

produced while recording

Date Ppeak: Date and time in which the power peak occurred Start rec.: Starting date of the recording Stop rec.: Stopping date of the recording Rec. Time Recording time expressed in days (d), hours (h) and minutes (m) Int. Per.: Set integration period value

CAUTION

The Total Produced Energy page is shown only if general parameter Total “Active Power & Energy” has been recorded (see § 5.4.6.1) and if the recording parameter “Co-generation” has been enabled (see § 5.4.5).

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VEGA78

5.5.2. Recording analysis (Istant type)

This page shows the analyses which can be performed on the saved data (Istant type).

Fig. 124: Recording analysis (Istant-type data)

1. Use the up and down arrow keys to highlight on blue background one of the analyses on the screen. Press the F1 or ENTER key (or the OPEN item or the smart icon on the display) to confirm the type of analysis to be performed.

2. Press the ESC key (or the smart icon on the display) to exit the function and go back to the “Saved data” page (Fig. 113).

5.5.2.1. Recording information

This page contains general information about the saved (Istant) file previously selected in the Saved Data Management MENU.

Fig. 125: Recording info

1. In these conditions, the F1 key (or the MODIFY key on the display) is active and it is possible to modify and save the comment line by using the virtual keyboard (see §

5.4.2.1).

2. Press the ESC key (or the smart icon

on the display) to exit the function and go back to

the “ R ecor d i n g a naly s i s ” p a g e (Fig. 124).

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5.5.2.2. Graph

This screen (Fig. 126) contemporarily shows the saved instant values of the waveforms of voltages V1, V2, V3, Vn scaled according to the Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 126: Voltage scope in three-phase 4-wire system

The following keys are active on this page:  The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms.

 The F1 key (or the PAG item on the display) advances to the following page of saved

current values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 127) contemporarily shows the saved instant values of the waveforms of voltages V12, V23, V31 scaled according to the Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 127: Voltage scope in three-phase 3-wire system or Aron system

The following keys are active on this page:  The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms.

 The F1 key (or the PAG item on the display) advances to the following page of saved

current values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

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VEGA78

This screen (Fig. 128) contemporarily shows the waveforms of phase 1 voltage and current, scaled according to the Full scale (Fs), and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 128: Voltage and current scope in single-phase system

The following keys are active on this page:  The F2 key (or the ZOOM V or ZOOM I item on the dislay) switches between voltage

zoom and current zoom (only if the Manual zoom mode has been activated).

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms (only if the manual zoom mode has been activated).

 The F1 key (or the PAG item on the display) advances to the following page of saved

current values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 129) contemporarily shows the instant values of the waveforms of currents I1, I2, I3, In scaled according to the Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 129: Current scope in three-phase 4-wire system

The following keys are active on this page:  The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms (only if the manual zoom mode has been activated).

 The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to phase 1 voltage and current.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

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VEGA78

This screen (Fig. 130) contemporarily shows the instant values of the waveforms of currents I1, I2, I3 scaled according to the Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 130: Current scope in three-phase 3-wire system or Aron system

The following keys are active on this page:  The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms (only if the manual zoom mode has been activated).

 The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to phase 1 voltage and current.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 131) contemporarily shows the instant values of the waveforms of voltage V1 and current I1, scaled according to the relevant Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 131: Phase 1 scope in three-phase 4-wire system

The following keys are active on this page:  The F2 key (or the ZOOM V or ZOOM I item on the dislay) switches between voltage

zoom and current zoom (only if the manual zoom mode has been activated).

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms (only if the manual zoom mode has been activated).

 The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to phase 2 voltage and current.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

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VEGA78

This screen (Fig. 132) contemporarily shows the instant values of the wavef orms of voltage V12 and current I1, scaled according to the relevant Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 132: Phase 1 scope in three-phase 3-wire system or Aron system

The following keys are active on this page:  The F2 key (or the ZOOM V or ZOOM I item on the dislay) switches between voltage

zoom and current zoom (only if the manual zoom mode has been activated).

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms (only if the manual zoom mode has been activated).

 The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to phase 2 voltage and current.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 133) contemporarily shows the instant values of the wavef orms of voltage V2 and current I2, scaled according to the relevant Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 133: Phase 2 scope in three-phase 4-wire system

The following keys are active on this page:  The F2 key (or the ZOOM V or ZOOM I item on the dislay) switches between voltage

zoom and current zoom (only if the manual zoom mode has been activated).

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms (only if the manual zoom mode has been activated).

 The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to phase 3 voltage and current.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 74

VEGA78

This screen (Fig. 134) contemporarily shows the instant values of the wavef orms of voltage V23 and current I2, scaled according to the relevant Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 134: Phase 2 scope in three-phase 3-wire system or Aron system

The following keys are active on this page:  The F2 key (or the ZOOM V or ZOOM I item on the dislay) switches between voltage

zoom and current zoom (only if the manual zoom mode has been activated).

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms (only if the manual zoom mode has been activated).

 The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to phase 3 voltage and current.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 135) contemporarily shows the instant values of the wavef orms of voltage V3 and current I3, scaled according to the relevant Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 135: Phase 3 scope in three-phase 4-wire system

The following keys are active on this page:  The F2 key (or the ZOOM V or ZOOM I item on the dislay) switches between voltage

zoom and current zoom (only if the manual zoom mode has been activated).

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms (only if the manual zoom mode has been activated).

 The F1 key (or the PAG item on the display) advances to the following page of saved

voltage values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 75

VEGA78

This screen (Fig. 136) contemporarily shows the instant values of the wavef orms of voltage V31 and current I3, scaled according to the relevant Full scale (Fs) and the relevant RMS values; these values have been saved by the instrument upon pressing the SAVE key.

Fig. 136: Phase 3 scope in three-phase 3-wire system or Aron system

The following keys are active on this page:  The F2 key (or the ZOOM V or ZOOM I item on the dislay) switches between voltage zoom

and current zoom (only if the manual zoom mode has been activated).

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the displayed

waveforms (only if the manual zoom mode has been activated).

 The F1 key (or the PAG item on the display) advances to the following page of saved

voltage values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 76

VEGA78

5.5.2.3. Harmonics analysis

This screen (Fig. 137) displays the harmonic values and the THD% value of voltages V1, V2, V3, Vn and of currents I1, I2, I3 and of Neutral current In in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 137: Total harmonics in three-phase 4-wire system

Should only the voltage signals or only the current signals be connected to the instrument’s inputs, all displayed harmonics will be shown in the upper half plane of the graph. If both voltage and current signals are connected to the instrument’s inputs, the histogram bars representing the harmonics will be shown respectively:

 In the upper half plane of the graph if the harmonics are introduced into the relevant

electrical system from the mains.

 In the lower half plane of the graph if the harmonics are injected into the relevant electrical

system from the mains

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values, relative to phase 1 harmonics.

 The F2 key (or the ARM V or ARM I item on the dislay) switches between total voltage

and current harmonics.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 77

VEGA78

The herewith screen (Fig. 138) displays the harmonic values and the THD% value of voltages V12, V23, V31 and of currents I1, I2, I3 in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 138: Total harmonics in three-phase 3-wire system or Aron system

Should only the voltage signals or only the current signals be connected to the instrument’s inputs, all displayed harmonics will be shown in the upper half plane of the graph. If both voltage and current signals are connected to the instrument’s inputs, the histogram bars representing the harmonics will be shown respectively:

 In the upper half plane of the graph if the harmonics are introduced into the relevant

electrical system from the mains.

 In the lower half plane of the graph if the harmonics are mnjected into the relevant electrical

system from the mains.

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values, relative to phase 1 harmonics.

 The F2 key (or the ARM V or ARM I item on the dislay) switches between total voltage

and current harmonics.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 78

VEGA78

This screen (Fig. 139) displays the harmonic values and the THD% value of voltage V1 and current I1 in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 139: Phase 1 harmonics in single-phase system

Should only the voltage signals or only the current signals be connected to the instrument’s inputs, all displayed harmonics will be shown in the upper half plane of the graph. If both voltage and current signals are connected to the instrument’s inputs, the histogram bars representing the harmonics will be shown respectively:

 In the upper half plane of the graph if the harmonics are introduced into the relevant

electrical system from the mains.

 In the lower half plane of the graph if the harmonics are injected into the relevant electrical

system from the mains.

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values (only for voltage harmonics).

 The F2 key (or the ARM V or ARM I item on the display) switche s between total volt age

and current harmonics.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 79

VEGA78

This screen (Fig. 140) displays the harmonic values and the THD% value of voltage V1 and current I1 in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 140: Phase 1 harmonics in three-phase 4-wire system

Should only the voltage signals or only the current signals be connected to the instrument’s inputs, all displayed harmonics will be shown in the upper half plane of the graph. If both voltage and current signals are connected to the instrument’s inputs, the histogram bars representing the harmonics will be shown respectively:

 In the upper half plane of the graph if the harmonics are introduced into the relevant

electrical system from the mains.

 In the lower half plane of the graph if the harmonics are injected into the relevant electrical

system from the mains.

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values, relative to phase 2 harmonics.

 The F2 key (or the ARM V or ARM I item on the dislay) switches between voltage and

current harmonics relative to Phase 1.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 80

VEGA78

This screen (Fig. 141) displays the harmonic values and the THD% value of voltage V12 and current I1 in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 141: Phase 1 harmonics in three-phase 3-wire system or Aron system

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values, relative to phase 2 harmonics.

 The F2 key (or the ARM V or ARM I item on the dislay) switches between voltage and

current harmonics relative to Phase 1.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 81

VEGA78

This screen (Fig. 142) displays the harmonic values and the THD% value of voltage V2 and current I2 in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 142: Phase 2 harmonics in three-phase 4-wire system

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values, relative to phase 3 harmonics.

 The F2 key (or the ARM V or ARM I item on the dislay) switches between voltage and

current harmonics relative to Phase 2.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 82

VEGA78

This screen (Fig. 143) displays the harmonic values and the THD% value of voltage V23 and current I2 in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 143: Phase 2 harmonics in three-phase 3-wire system or Aron system

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values, relative to phase 3 harmonics.

 The F2 key (or the ARM V or ARM I item on the dislay) switches between voltage and

current harmonics relative to Phase 1.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 83

VEGA78

This screen (Fig. 144) displays the harmonic values and the THD% value of voltage V3 and current I3 in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 144: Phase 3 harmonics in three-phase 4-wire system

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values, relative to neutral.

 The F2 key (or the ARM V or ARM I item on the dislay) switches between voltage and

current harmonics relative to Phase 3.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 84

VEGA78

This screen (Fig. 145) displays the harmonic values and the THD% value of voltage V31 and current I3 in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 145: Phase 3 harmonics in three-phase 3-wire system or Aron system

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values, relative to phase 3 harmonics.

 The F2 key (or the ARM V or ARM I item on the dislay) switches between voltage and

current harmonics relative to Phase 1.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 85

VEGA78

This screen (Fig. 146) displays the harmonic values and the THD% value of neutral voltage Vn and neutral current In in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 146: Neutral harmonics in three-phase 4-wire system

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to total harmonics.

 The F2 key (or the ARM V or ARM I item on the dislay) switches between voltage and

current harmonics relative to Phase 3.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 86

VEGA78

This screen (Fig. 147) displays the harmonic values and the THD% value of neutral voltage Vn in a graph (scaled according to the Full scale Fs) or in a table. The values displayed are percentage values of the fundamental or absolute values according to the configuration set in the ANALYZER CONFIGURATION MENU -> ADVANCED.

Fig. 147: Voltage harmonics in single-phase system

Should only the voltage signals or only the current signals be connected to the instrument’s inputs, all displayed harmonics will be shown in the upper half plane of the graph. If both voltage and current signals are connected to the instrument’s inputs, the histogram bars representing the harmonics will be shown respectively:

 In the upper half plane of the graph if the harmonics are introduced into the relevant

electrical system from the mains.

 In the lower half plane of the graph if the harmonics are injected into the relevant electrical

system from the mains.

The following keys are active on this page:

 The up (ZOOM+) or down (ZOOM-) arrow keys zoom in or out the histogram.  The right and left arrow keys move the cursor to the right or to the left along the

harmonics.

 The F1 key (or the PAG item on the display) advances to the following page of saved

values (only for Voltage Harmonics).

 The F2 key (or the ARM V or ARM I item on the dislay) switches between voltage and

current harmonics relative to Phase 1.

 The F4 key (or the ARM PAG item on the display) displays the following harmonics

group. 0..9, 10..19, 20..29, 30..39, 40..49.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 87

VEGA78

5.5.2.4. Vectors

This screen (Fig. 148) displays, with graphic and numeric indications, the phase delays expressed in degrees [°] between:

 Voltage V1 and V2, V2 and V3, V3 and V1.  Voltage V1 and current I1.  Voltage V2 and current I2.  Voltage V3 and current I3.

The latter allow finding out the inductive or capacitive nature of the electrical installation. In detail:

 Positive angle: Inductive load.  Negative angle: Capacitive load.

The N-PE voltage (blue) and Neutral current (pale blue) vectors are also represented.

Fig. 148: Total vector diagram in three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the voltage vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 88

VEGA78

This screen (Fig. 149) displays, with graphic and numeric indications, the phase delays expressed in degrees [°] between:

 Voltage V12 and V23, V23 and V31, V31 and V12  Voltage V12 and current I1.  Voltage V23 and current I2.  Voltage V31 and current I3.

To correctly evaluate this vector diagram, it must be remembered that, under purely resistive loads, the angle between the Delta voltage and the phase current is +30°.

Fig. 149: Total vector diagram in three-phase 3-wire system or Aron system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the voltage vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 150) displays, with graphic and numeric indications, the phase delays, expressed in degrees [°], between voltage V1 and current I1, so that the inductive or capacitive nature of the electrical installation may be found out. In detail:

 Positive angle: Inductive load.  Negative angle: Capacitive load.

Fig. 150: Vector diagram in single-phase system

The following keys are active on this page:  The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 89

VEGA78

This screen (Fig. 151) displays, with graphic and numeric indications, the phase delays, expressed in degrees [°], between voltage V1 and V2, V2 and V3, V3 and V1. Voltage unbalance values are also displayed.

Fig. 151: Voltage vector diagram in three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the current vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 152) displays, with graphic and numeric indications, the phase delays, expressed in degrees [°], between voltage V12 and V23, V23 and V31, V31 and V12. Voltage unbalance values are also displayed.

Fig. 152: Voltage vector diagram in three-phase 3-wire system or Aron system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the current vector diagram.

 The ESC key (or the smart icon

on the display) to exit the function and go back to the

“Recording analysis” page (Fig. 124).

EN - 90

VEGA78

This screen (Fig. 153) displays, with graphic and numeric indications, the phase delays, expressed in degrees [°], between current I1 and I2, I2 and I3, I3 and I1 and the vector representing the neutral current.

Fig. 153: Current vector diagram in 4-wire system, 3-wire system or Aron system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the phase 1 vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 154) displays, with graphic and numeric indications, the phase delays, expressed in degrees [°], between voltage V1 and current I1, so that the inductive or capacitive nature of the electrical installation may be found out. In detail:

 Positive angle: Inductive load.  Negative angle: Capacitive load.

Fig. 154: Phase 1 vector diagram in three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the phase 2 vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 91

VEGA78

This screen (Fig. 155) displays, with graphic and numeric indications, the phase delays expressed in degrees [°] between voltage V12 and current I1. To correctly evaluate this diagram, it must be remembered that, under purely resistive loads, the angle between the Delta voltage and the phase current is +30°.

Fig. 155: Phase 1 vector diagram in three-phase 3-wire system or Aron system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the phase 2 vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 156) displays, with graphic and numeric indications, the phase delays, expressed in degrees [°], between voltage V2 and current I2, so that the inductive or capacitive nature of the electrical installation may be found out. In detail:

 Positive angle: Inductive load.  Negative angle: Capacitive load.

Fig. 156: Phase 2 vector diagram in three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the phase 3 vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 92

VEGA78

This screen (Fig. 157) displays, with graphic and numeric indications, the phase delays expressed in degrees [°] between voltage V23 and current I2. To correctly evaluate this diagram, it must be remembered that, under purely resistive loads, the angle between the Delta voltage and the phase current is +30°.

Fig. 157: Phase 2 vector diagram in three-phase 3-wire system or Aron system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the phase 3 vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

This screen (Fig. 158) displays, with graphic and numeric indications, the phase delays, expressed in degrees [°], between voltage V3 and current I3, so that the inductive or capacitive nature of the electrical installation may be found out. In detail:

 Positive angle: Inductive load.  Negative angle: Capacitive load.

Fig. 158: Phase 3 vector diagram in three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the total vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 93

VEGA78

This screen (Fig. 159) displays, with graphic and numeric indications, the phase delays expressed in degrees [°] between voltage V31 and current I3. To correctly evaluate this diagram, it must be remembered that, under purely resistive loads, the angle between the Delta voltage and the phase current is +30°.

Fig. 159: Phase 3 vector diagram in three-phase 3-wire system or Aron system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values relative to the total vector diagram.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 94

VEGA78

5.5.2.5. Measures

In measure mode, the instrument displays the saved values in TRMS as shown in the following figures:

In this page, the following symbols are used: V1N  Neutral - Phase L1 Voltage V2N  Neutral - Phase L2 Voltage V3N  Neutral - Phase L3 Voltage VNPE  Neutral - Ground Voltage V12  Phase L1 - Phase L2 Voltage V23  Phase L2 - Phase L3 Voltage V31  Phase L3 - Phase L1 Voltage Inv%  % value of the Negative sequence unbalance Omo%  % value of the Zero sequence unbalance SEQ  Phase sequence:

”123” => Correct ”132” => Not correct ”023” => No Voltage on B1 ”103” => No Voltage on B2 ”120” => No Voltage on B3 ”100” => No Voltage on B2 and B3 ”020” => No Voltage on B1 and B3 ”003” => No Voltage on B1 and B2

Hz  Frequency I1  Current on Phase L1 I2  Current on Phase L2 I3  Current on Phase L3 IN  Neutral Current

Fig. 160: Page 1/5 of numeric values for three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

In this page, the following symbols are used:

Patt  System total Active Power Preatt  Total Reactive Power Papp  Total Apparent Power Pf  Total Power Factor CosPhi  System total CosPhi

CosPhi represents the theoretical limit value which can be reached by the Power factor if all harmonics are eliminated from the electrical system. For dimensioning a power factor correction system, reference is usually made to the CosPhi parameter value.

Fig. 161: Page 2/5 of numeric values for three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 95

VEGA78

In this page, the following symbols are used: V1N  Phase L1 - Neutral Voltage I1  Phase L1 Current Patt1  Phase L1 Active Power Preatt1  Phase L1 Reactive Power Papp1  Phase L1 Apparent Power Pf1  Phase L1 Power Factor CosPhi1  Cosine of the Phase delay between the Phase L1 Voltage and Current fundamentals

CosPhi represents the theoretical limit value which can be reached by the Power factor if all harmonics are eliminated from the electrical system. For dimensioning a power factor correction system, reference is usually made to the CosPhi parameter value.

Fig. 162: Page 3/5 of numeric values for three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

In this page, the following symbols are used: V2N  Phase L2 - Neutral Voltage I2  Phase L2 Current Patt2  Phase L2 Active Power Preatt2  Phase L2 Reactive Power Papp2  Phase L2 Apparent Power Pf2  Phase L2 Power Factor CosPhi2  Cosine of the Phase delay between the Phase L2 Voltage and Current fundamentals

CosPhi represents the theoretical limit value which can be reached by the Power factor if all harmonics are eliminated from the electrical system. For dimensioning a power factor correction system, reference is usually made to the CosPhi parameter value.

Fig. 163: Page 4/5 of numeric values for three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 96

VEGA78

In this page, the following symbols are used:

V3N  Phase L3 - Neutral Voltage I3  Phase L3 Current Patt3  Phase L3 Active Power Preatt3  Phase L3 Reactive Power Papp3  Phase L3 apparent Power Pf3  Phase L3 Power Factor CosPhi3  Cosine of the Phase delay between the Phase L3 Voltage and Current fundamentals

CosPhi represents the theoretical limit value which can be reached by the Power factor if all harmonics are eliminated from the electrical system. For dimensioning a power factor correction system, reference is usually made to the CosPhi parameter value.

Fig. 164: Page 5/5 of numeric values for three-phase 4-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

In this page, the following symbols are used: V1PE  Phase L1 - PE Voltage V2PE  Phase L2 - PE Voltage V3PE  Phase L3 - PE Voltage V12  Phase L1 - Phase L2 Voltage V23  Phase L2 - Phase L3 Voltage V31  Phase L3 - Phase L1 Voltage Inv%  % value of the Negative sequence unbalance Omo%  % value of the Zero sequence unbalance SEQ  Phase sequence:

”123” => Correct ”132” => Not correct ”023” => No Voltage on B1 ”103” => No Voltage on B2 ”120” => No Voltage on B3 ”100” => No Voltage on B2 and B3 ”020” => No Voltage on B1 and B3 ”003” => No Voltage on B1 and B2

Hz  Frequency. I1  Current on Phase L1 I2  Current on Phase L2 I3  Current on Phase L3

Fig. 165: Page 1/5 of numeric values for three-phase 3-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 97

VEGA78

In this page, the following symbols are used: Patt  System total Active Power Preatt  Total Reactive Power Papp  Total Apparent Power Pf  Total Power Factor CosPhi  System total CosPhi

CosPhi represents the theoretical limit value which can be reached by the Power factor if all harmonics are eliminated from the electrical system. For dimensioning a power factor correction system, reference is usually made to the CosPhi parameter value.

Fig. 166: Page 2/5 of numeric values for three-phase 3-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

In this page, the following symbols are used: V1PE  Phase L1 - PE Voltage I1  Phase L1 Current Patt1  Phase L1 Active Power Preatt1  Phase L1 Reactive Power Papp1  Phase L1 Apparent Power Pf1  Phase L1 Power Factor CosPhi1  Cosine of the phase delay between the Phase L1 voltage and current fundamentals

CosPhi represents the theoretical limit value which can be reached by the Power factor if all harmonics are eliminated from the electrical system. For dimensioning a power factor correction system, reference is usually made to the CosPhi parameter value.

Fig. 167: Page 3/5 of numeric values for three-phase 3-wire system

The following keys are active on this page:  The F1 key (or the PAG item on the display) advances to the following page of saved

values.

 The ESC key (or the smart icon on the display) to exit t he function and go back to the

“Recording analysis” page (Fig. 124).

EN - 98

HT instruments VEGA78 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual