METREL Energy Master MI 2883 Instruction Manual

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Page 1

Energy Master

MI 2883

Instruction manual

Version 2.1.1, Code No. 20 752 521

Page 2

Distributor:

Mark on your equipment certifies that this equipment meets the requirements of the EU (European Union) concerning safety and interference causing equipment regulations

Manufacturer:

METREL d.d. Ljubljanska cesta 77 1354 Horjul Slovenia

web site: http://www.metrel.si e-mail: metrel@metrel.si

without permission in writing from METREL.

Page 3

MI 2883 Energy Master Table of contents

1 Introduction ........................................................................................................... 7

1.1 Main Features .................................................................................................. 7

1.2 Safety considerations ....................................................................................... 8

1.3 Applicable standards ........................................................................................ 9

1.4 Abbreviations ................................................................................................. 10

2 Description ................................................................................................ .......... 19

2.1 Front panel ..................................................................................................... 19

2.2 Connector panel ............................................................................................. 20

2.3 Bottom view ................................................................................................... 21

2.4 Accessories .................................................................................................... 21

2.4.1 Standard accessories .............................................................................. 21

2.4.2 Optional accessories ............................................................................... 21

3 Operating the instrument ................................................................................... 22

3.1 Instrument status bar ..................................................................................... 23

3.2 Instrument keys .............................................................................................. 23

3.3 Instrument memory (microSD card)................................................................ 24

3.4 Instrument Main Menu.................................................................................... 25

3.4.1 Instrument submenus .............................................................................. 26

3.5 U, I, f ................................ ................................ .............................................. 28

3.5.1 Meter ....................................................................................................... 28

3.5.2 Scope ...................................................................................................... 30

3.5.3 Trend ...................................................................................................... 32

3.6 Power ............................................................................................................. 33

3.6.1 Meter ....................................................................................................... 34

3.6.2 Trend ...................................................................................................... 36

3.7 Energy ........................................................................................................... 39

3.7.1 Meter ....................................................................................................... 39

3.7.2 Trend ...................................................................................................... 40

3.7.3 Efficiency ................................................................................................ 41

3.8 Harmonics / interharmonics ............................................................................ 44

3.8.1 Meter ....................................................................................................... 44

3.8.2 Histogram (Bar) ....................................................................................... 46

3.8.3 Harmonics Average Histogram (Avg Bar) ................................................ 47

3.8.4 Trend ...................................................................................................... 49

3.9 Flickers .......................................................................................................... 51

3.9.1 Meter ....................................................................................................... 51

3.9.2 Trend ...................................................................................................... 52

3.10 Phase Diagram .............................................................................................. 54

3.10.1 Phase diagram ........................................................................................ 54

3.10.2 Unbalance diagram ................................................................................. 55

3.10.3 Unbalance trend ...................................................................................... 57

3.11 Temperature .................................................................................................. 58

3.11.1 Meter ....................................................................................................... 58

3.11.2 Trend ...................................................................................................... 59

3.12 Underdeviation and overdeviation .................................................................. 59

3.12.1 Meter ....................................................................................................... 59

3.12.2 Trend ...................................................................................................... 60

3.13 Signalling ....................................................................................................... 62

3.13.1 Meter ....................................................................................................... 62

3.13.2 Trend ...................................................................................................... 63

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MI 2883 Energy Master Table of contents

3.13.3 Table ....................................................................................................... 64

3.14 General Recorder ........................................................................................... 65

3.15 Events table ................................................................................................... 67

3.16 Alarms table ................................................................................................... 71

3.17 Rapid voltage changes (RVC) table ............................................................... 73

3.18 Memory List ................................................................................................... 74

3.18.1 General Record ....................................................................................... 76

3.18.2 Waveform snapshot ................................................................................ 79

3.19 Measurement Setup submenu ....................................................................... 81

3.19.1 Connection setup .................................................................................... 81

3.19.2 Event setup ............................................................................................. 86

3.19.3 Alarm setup ............................................................................................. 88

3.19.4 Signalling setup ....................................................................................... 89

3.19.5 Rapid voltage changes (RVC) setup ....................................................... 90

3.20 General Setup submenu ................................................................................ 91

3.20.1 Time & Date ............................................................................................ 91

3.20.2 Time & Date ............................................................................................ 92

3.20.3 Language ................................................................................................ 92

3.20.4 Instrument info ................................................................ ........................ 93

3.20.5 Lock/Unlock ............................................................................................ 93

3.20.6 Colour model ........................................................................................... 95

4 Recording Practice and Instrument Connection ............................................... 97

4.1 Measurement campaign ................................................................ ................. 97

4.2 Connection setup ......................................................................................... 101

4.2.1 Connection to the LV Power Systems ................................................... 101

4.2.2 Connection to the MV or HV Power System .......................................... 106

4.2.3 Current clamp selection and transformation ratio setting ....................... 107

4.2.4 Temperature probe connection ............................................................. 111

4.2.1 Printing support ..................................................................................... 111

4.3 Instrument connection to powerView v3.0 .................................................... 113

4.4 Number of measured parameters and connection type relationship ............. 121

5 Theory and internal operation .......................................................................... 124

5.1 Measurement methods................................................................................. 124

5.1.1 Measurement aggregation over time intervals ....................................... 124

5.1.2 Voltage measurement (magnitude of supply voltage) ............................ 124

5.1.3 Current measurement (magnitude of supply current) ............................ 125

5.1.4 Frequency measurement ...................................................................... 125

5.1.5 Power measurement (Standard compliance: IEEE 1459-2010) ............. 126

5.1.6 Energy .................................................................................................. 131

5.1.7 Harmonics and interharmonics .............................................................. 132

5.1.8 Signalling .............................................................................................. 134

5.1.9 Flicker ................................................................................................... 135

5.1.10 Voltage and current unbalance.............................................................. 136

5.1.11 Underdeviation and overdeviation ................................ ......................... 136

5.1.12 Voltage events ................................................................ ...................... 137

5.1.13 Alarms ................................................................................................... 141

5.1.14 Rapid voltage changes (RVC) ............................................................... 142

5.1.15 Data aggregation in GENERAL RECORDING ...................................... 143

5.1.16 Flagged data ......................................................................................... 146

5.1.17 Waveform snapshot .............................................................................. 147

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MI 2883 Energy Master Table of contents

5.2 EN 50160 Standard Overview ...................................................................... 147

5.2.1 Power frequency ................................................................................... 148

5.2.2 Supply voltage variations ...................................................................... 148

5.2.3 Supply voltage unbalance ..................................................................... 148

5.2.4 THD voltage and harmonics .................................................................. 148

5.2.5 Interharmonic voltage ............................................................................ 149

5.2.6 Mains signalling on the supply voltage .................................................. 149

5.2.7 Flicker severity ...................................................................................... 149

5.2.8 Voltage dips .......................................................................................... 149

5.2.9 Voltage swells ....................................................................................... 150

5.2.10 Short interruptions of the supply voltage ............................................... 150

5.2.11 Long interruptions of the supply voltage ................................................ 150

5.2.12 Energy Master recorder setting for EN 50160 survey ............................ 150

6 Technical specifications ................................................................................... 152

6.1 General specifications .................................................................................. 152

6.2 Measurements ............................................................................................. 152

6.2.1 General description ............................................................................... 152

6.2.2 Phase Voltages ..................................................................................... 153

6.2.3 Line voltages ......................................................................................... 154

6.2.4 Current ................................ ................................................................ .. 154

6.2.5 Frequency ............................................................................................. 156

6.2.6 Flickers ................................................................................................. 156

6.2.7 Combined power ................................................................................... 156

6.2.8 Fundamental power .............................................................................. 157

6.2.9 Nonfundamental power ......................................................................... 157

6.2.10 Power factor (PF) .................................................................................. 158

6.2.11 Displacement factor (DPF) or Cos φ) .................................................... 158

6.2.12 Energy .................................................................................................. 159

6.2.13 Voltage harmonics and THD ................................................................. 159

6.2.14 Current harmonics, THD and k-factor .................................................... 159

6.2.15 Voltage interharmonics ......................................................................... 160

6.2.16 Current interharmonics .......................................................................... 160

6.2.17 Signalling .............................................................................................. 160

6.2.18 Unbalance ............................................................................................. 160

6.2.19 Overdeviation and Underdeviation ........................................................ 160

6.2.20 Time and duration uncertainty ............................................................... 161

6.2.21 Temperature probe ............................................................................... 161

6.3 Recorders .................................................................................................... 161

6.3.1 General recorder ................................................................................... 161

6.3.2 Waveform snapshot .............................................................................. 162

6.4 Standards compliance .................................................................................. 163

6.4.1 Compliance to the IEC 61557-12 .......................................................... 163

6.4.2 Compliance to the to the IEC 61000-4-30 ............................................. 164

7 Maintenance ...................................................................................................... 165

7.1 Inserting batteries into the instrument ........................................................... 165

7.2 Batteries ....................................................................................................... 166

7.3 Firmware upgrade ................................ ........................................................ 167

7.3.1 Requirements ........................................................................................ 167

7.3.2 Upgrade procedure ............................................................................... 168

7.4 Power supply considerations ........................................................................ 171

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MI 2883 Energy Master Table of contents

7.5 Cleaning ....................................................................................................... 171

7.6 Periodic calibration ....................................................................................... 172

7.7 Service ......................................................................................................... 172

7.8 Troubleshooting ........................................................................................... 172

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MI 2883 Energy Master Introduction

1 Introduction

Energy Master is handheld multifunction instrument for power quality analysis and energy efficiency measurements.

Figure 1.1: Energy Master instrument

1.1 Main Features

 Full compliance with power quality standard IEC 61000-4-30 Class S.  Simple and powerful recorder with microSD memory card (sizes up to 32 GB are

supported).

 3 voltage channels with wide measurement range: up to 1000 Vrms, CAT III /

1000 V, with support for medium and high voltage systems.

 Simultaneous voltage and current (7 channels) sampling, 16 bit AD conversion

for accurate power measurements and minimal phase shift error.

 4 current channels with support for automatic clamp recognition and range

selection.

 Compliance with IEC 61557-12 and IEEE 1459 (Combined, fundamental,

nonfundamental power) and IEC 62053-21 (Energy).

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MI 2883 Energy Master Introduction

The instrument has been designed to ensure maximum operator safety. Usage in a way other than specified in this manual may increase the risk of harm to the operator!

Do not use the instrument and/or accessories if any visible damage is noticed!

The instrument contains no user serviceable parts. Only an authorized dealer can carry out service or adjustment!

All normal safety precautions have to be taken in order to avoid risk of electric shock when working on electrical installations!

Only use approved accessories which are available from your distributor!

Instrument contains rechargeable NiMH batteries. The batteries should only be replaced with the same type as defined on the battery placement label or in this manual. Do not use standard batteries while power supply adapter/charger is connected, otherwise they may explode!

Hazardous voltages exist inside the instrument. Disconnect all test leads, remove the power supply cable and switch off the instrument before removing battery compartment cover.

Maximum nominal voltage between any phase and neutral input is 1000 V

RMS

Maximum nominal voltage between phases is 1730 V

RMS

 4.3’’ TFT colour display.  Powerful troubleshooting tools: transient recorder with envelope and level

triggering.

 PC Software PowerView v3.0 is an integral part of a measuring system which

provides easiest way to download, view and analyse measured data or print reports.

o PowerView v3.0 analyser exposes a simple but powerful interface for

downloading instrument data and getting quick, intuitive and descriptive analysis. Interface has been organized to allow quick selection of data using a Windows Explorer-like tree view.

o User can easily download recorded data, and organize it into multiple sites

with many sub-sites or locations.

o Generate charts, tables and graphs for your power quality data analysing,

and create professional printed reports.

o Export or copy / paste data to other applications (e.g. spreadsheet) for

further analysis.

o Multiple data records can be displayed and analysed simultaneously. o Merge different logging data into one measurement, synchronize data

recorded with different instruments with time offsets, split logging data into multiple measurements, or extract data of interest.

1.2 Safety considerations

To ensure operator safety while using the Energy Master instruments and to minimize the risk of damage to the instrument, please note the following general warnings:

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MI 2883 Energy Master Introduction

Always short unused voltage inputs (L1, L2, L3) with neutral (N) input to prevent measurement errors and false event triggering due to noise coupling.

Do not remove microSD memory card while instrument is recording or reading data. Record damage and card failure can occur.

Electromagnetic compatibility(EMC)

EN 61326-2-2: 2013

Electrical equipment for measurement, control and laboratory use – EMC requirements – Part 2-2: Particular requirements - Test configurations, operational conditions and performance criteria for portable test, measuring and monitoring equipment used in low-voltage distribution systems

 Emission: Class A equipment (for industrial

purposes)

 Immunity for equipment intended for use in

industrial locations

Safety (LVD)

EN 61010-1: 2010

Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: General requirements

EN 61010-2-030: 2010

Safety requirements for electrical equipment for measurement, control and laboratory use – Part 2-030: Particular requirements for testing and measuring circuits

EN 61010-031: 2002 + A1: 2008

Safety requirements for electrical equipment for measurement, control and laboratory use – Part 031: Safety requirements for hand-held probe assemblies for electrical measurement and test

EN 61010-2-032: 2012

Safety requirements for electrical equipment for measurement, control and laboratory use Part 031: Safety requirements for hand-held probe assemblies for electrical measurement and test

Measurement methods

IEC 61000-4-30: 2015 Class S

Part 4-30: Testing and measurement techniques – Power quality measurement methods

IEC 61557-12: 2007

Equipment for testing, measuring or monitoring of protective measures – Part 12: Performance measuring and monitoring devices (PMD)

IEC 61000-4-7: 2002 + A1: 2008

Part 4-7: Testing and measurement techniques – General guide on harmonics and interharmonics measurements and instrumentation for power

1.3 Applicable standards

The Energy Master are designed and tested in accordance with the following standards:

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MI 2883 Energy Master Introduction

supply systems and equipment connected thereto

IEC 61000-4-15 : 2010

Part 4-15: Testing and measurement techniques – Flickermeter – Functional and design specifications

IEC 62053-21 : 2003

Part 21: Static meters for active energy (Class 1)

IEC 62053-23 : 2003

Part 23: Static meters for reactive energy (Class

IEEE 1459 : 2010

IEEE Standard Definitions for the Measurement of Electric Power Quantities Under Sinusoidal, Nonsinusoidal, Balanced, or Unbalanced Conditions

EN 50160 : 2010

Voltage characteristics of electricity supplied by public electricity networks

GOST R 54149 : 2010

Electric energy. Electromagnetic compatibility of technical equipment. Power quality limits in the public power supply systems

Current crest factor, including CF

(phase p current crest

factor) and CF

(neutral current crest factor). See 5.1.3

for definition.

Voltage crest factor, including CF

Upg

(phase p to phase g

voltage crest factor) and CF

(phase p to neutral voltage

crest factor). See 5.1.2 for definition.



DPF

ind/cap

Instantaneous phase power displacement (fundamental) power factor or cos , including DPFp

ind

(phase p power

displacement). Minus sign indicates generated power and plus sign

indicates consumed power. Suffix ind/cap represents inductive/capacitive character.

Note about EN and IEC standards:

Text of this manual contains references to European standards. All standards of EN 6XXXX (e.g. EN 61010) series are equivalent to IEC standards with the same number (e.g. IEC 61010) and differ only in amended parts required by European harmonization procedure.

1.4 Abbreviations

In this document following symbols and abbreviations are used:

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MI 2883 Energy Master Introduction

DPF

ind/cap



Recorded phase displacement (fundamental) power factor or cos , including DPFp

ind/cap



(phase p power

displacement). Minus sign indicates generated

power and plus sign indicates consumed power. Suffix ind/cap represents inductive/ capacitive character. This parameter is recorded separately for each quadrant as shown on figure. See 5.1.5 for definition.



DPF

totind



DPF

totcap

Instantaneous positive sequence fundamental power factor.

Minus sign indicates generated power and plus sign indicates consumed power. Suffix ind/cap represents inductive/capacitive character. See 5.1.5 for definition.

DPF

totind



DPF

totcap



Recorded total effective fundamental power factor.

Minus sign indicates generated power and plus sign indicates consumed power. Suffix ind/cap represents inductive/capacitive character. This parameter is recorded separately as shown on figure. See 5.1.5 for definition.

Dı

Phase current distortion power, including Dıp (phase p current distortion power). See 5.1.5 section: Power measurement (Standard compliance: IEEE 1459-2010) for definition.

Deı

tot

Total effective current distortion power. See 5.1.5 section: Power measurement (Standard compliance: IEEE 1459-

2010) for definition.

Phase harmonics distortion power, including DHp (phase p harmonics distortion power). See 5.1.5 section: Power measurement (Standard compliance: IEEE 1459-2010) for definition.

DeH

Total effective harmonics distortion power. See 5.1.5 section: Total nonfundamental power measurements for definition.

Dᴠ

Phase voltage distortion power, including Dᴠp (phase p voltage distortion power). See 5.1.5 section: Power measurement (Standard compliance: IEEE 1459-2010) for definition.

Deᴠ

tot

Total effective voltage distortion power. See 5.1.5

270

DPFind+

Lead

Lag

DPFcap+

DPFcap-

DPFind-

180

+P-P

-Q

III IV

270

Lead

Lag

180

+P-P

-Q

III IV

DPF

totind+

DPF

totcap+

DPF

totcap-

DPF

totind-

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MI 2883 Energy Master Introduction

section: Power measurement (Standard compliance: IEEE 1459-2010) for definition.

Ep

Recorded phase combined (fundamental and nonfundamental) active energy, including Ep

+/-

(phase p

active energy). Minus sign indicates generated energy and plus sign indicates consumed energy. See 5.1.6 for definition.

tot



Recorded total combined (fundamental and nonfundamental) active energy. Minus sign indicates generated and plus sign indicates consumed energy. See

5.1.6 for definition.



Recorded phase fundamental reactive energy, including

+/-

(phase p reactive energy). Minus sign indicates

generated and plus sign indicates consumed energy. See

5.1.6 for definition.

tot



Recorded total fundamental reactive energy. Minus sign indicates generated and plus sign indicates consumed energy. See 5.1.6 for definition.

f, freq

Frequency, including freq

U12

(voltage frequency on U12), freqU1 (voltage frequency on U1 and freqI1 (current frequency on I1). See 5.1.4 for definition.

Negative sequence current ratio (%). See 5.1.10 for definition.

Zero sequence current ratio (%). See 5.1.10 for definition.

Positive sequence current component on three phase systems. See 5.1.10 for definition.

I-

Negative sequence current component on three phase systems. See 5.1.10 for definition.

Zero sequence current components on three phase systems. See 5.1.10 for definition.

Rms(1/2)

RMS current measured over 1 cycle, commencing at a fundamental zero crossing on an associated voltage channel, and refreshed each half-cycle, including Ip

Rms(1/2)

(phase p current), I

NRms(1/2)

(neutral RMS current)

Ifund

Fundamental RMS current Ih1 (on 1st harmonics), including Ifundp (phase p fundamental RMS current) and

IfundN (neutral RMS fundamental current). See 5.1.7 for

definition

nth current RMS harmonic component including Iph

(phase p; nth RMS current harmonic component) and INh

(neutral nth RMS current harmonic component). See 5.1.7 for definition

Iih

nth current RMS interharmonic component including Ipih

(phase p; nth RMS current interharmonic component) and

INih

(neutral n

RMS current interharmonic component).

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MI 2883 Energy Master Introduction

See 5.1.7 for definition

Nom

Nominal current. Current of clamp-on current sensor for 1 Vrms at output.

Peak current, including IpPk (phase p current) including INPk (neutral peak current)

Rms

RMS current, including IpRms (phase p current), INRms (neutral RMS current). See 5.1.3 for definition.



Instantaneous phase active combined (fundamental and nonfundamental) power, including Pp (phase p active power). Minus sign indicates generated and plus sign indicates consumed power. See

5.1.5 for definitions.

P

Recorded phase active (fundamental and nonfundamental) power, including P



(phase p active

power). Minus sign indicates generated and plus sign indicates consumed power. See 5.1.5 for definitions.



tot

Instantaneous total active combined (fundamental and nonfundamental) power. Minus sign indicates generated and plus sign indicates consumed power. See 5.1.5 for definitions.

tot



Recorded total active (fundamental and nonfundamental) power. Minus sign indicates generated and plus sign indicates consumed power. See 5.1.5 for definitions.



Pfund

Instantaneous active fundamental power, including Pfund

(phase p active fundamental power). Minus sign

indicates generated and plus sign indicates consumed power. See 5.1.5 for definitions.

Pfund+

Recorded phase active fundamental power, including

Pfund



(phase p active fundamental power). Minus sign

indicates generated and plus sign indicates consumed power. See 5.1.5 for definitions.



P+,



tot

Instantaneous positive sequence of total active fundamental power. Minus sign indicates generated and plus sign indicates consumed power.

See 5.1.5 for definitions.

tot



Recorded positive sequence of total active fundamental power. Minus sign indicates generated and plus sign

270

Lead

Lag

180

-P

III IV

+P-P

270

Lead

Lag

180

+Ptot

III IV

+Ptot

-Ptot

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MI 2883 Energy Master Introduction

indicates positive sequence of consumed power. See 5.1.5 for definitions.



Instantaneous phase active harmonic power, including



(phase p active harmonic power). Minus sign

indicates generated and plus sign indicates consumed power. See 5.1.5 for definitions.



Recorded phase active harmonics power, including P



(phase p active harmonic power). Minus sign indicates generated and plus sign indicates consumed power. See

5.1.5 for definitions.



Htot

Instantaneous total active harmonic power. Minus sign indicates generated and plus sign indicates consumed power. See 5.1.5 for definitions.

Htot



Recorded total active harmonics power. Minus sign indicates generated and plus sign indicates consumed active power. See 5.1.5 for definitions.



ind



cap

Instantaneous phase combined (fundamental and nonfundamental) power factor, including PFpind/cap (phase p power factor). Minus sign indicates generated power and plus sign indicates consumed power. Suffix ind/cap represents inductive/capacitive character.

Note: PF = DPF when harmonics are not present. See

5.1.5 for definition.

ind



cap



Recorded phase combined (fundamental and nonfundamental) power factor.

Minus sign indicates generated power and plus sign indicates consumed power. Suffix ind/cap represents inductive/ capacitive character. This parameter is recorded separately for each quadrant as shown on figure.



PFe

totind



PFe

totcap

Instantaneous total effective combined (fundamental and nonfundamental) power factor.

Minus sign indicates generated power and plus sign indicates consumed power. Suffix ind/cap represents inductive/capacitive character. See 5.1.5 for definition.

PFe

totind



Recorded total effective combined (fundamental and nonfundamental) power factor.

270

+PFind

Lead

Lag

+PFcap

-PFcap

-PFind

180

+P-P

-Q

III IV

270

PFind

Lead

Lag

PFcap

PFind

180

+P-P

-Q

III IV

Page 15

MI 2883 Energy Master Introduction

PFe

totcap



Phase long term flicker (2 hours), including P

ltpg

(phase p

to phase g long term voltage flicker) and P

ltp

(phase p to

neutral long term voltage flicker). See 5.1.9 for definition.

Pst

Short term flicker (10 minutes) including P

stpg

(phase p to

phase g short term voltage flicker) and P

stp

(phase p to

neutral voltage flicker). See 5.1.9 for definition.

st(1min)

Short term flicker (1 minute) including P

st(1min)pg

(phase p

to phase g short term voltage flicker) and P

st(1min)p

(phase

p to neutral voltage flicker). See 5.1.9 for definition.

inst

Instantaneous flicker including P

instpg

(phase p to phase g

instantaneous voltage flicker) and P

instp

(phase p to

instantaneous voltage flicker). See 5.1.9 for definition.



Instantaneous combined (fundamental and nonfundamental) nonactive phase power including Np (phase p nonactive phase power). Minus sign indicates generated and plus sign indicate consumed nonactive power. See 5.1.5 for definition.

ind



cap



Recorded phase combined (fundamental and nonfundamental) nonactive power including N

cap/ind

p (phase

p nonactive phase power). Suffix ind/cap represents inductive/capacitive character. Minus sign indicates generated and plus sign indicates consumed fundamental reactive power. This parameter is recorded separately for each quadrant as shown on figure. See 5.1.5 for definition.



Qfund

Instantaneous fundamental reactive phase power including Qp (phase p reactive phase power). Minus sign indicates generated and plus sign indicates consumed fundamental reactive power. See 5.1.5 for definition.

270

PFetotind

Lead

Lag

PFetotcap

PFetotind

180

+P-P

-Q

III IV

270

Nind

Lead

Lag

Ncap

Nind

180

+P-P

-Q

III IV

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MI 2883 Energy Master Introduction

Qfund

ind



Qfund

cap



Recorded phase fundamental reactive power. Suffix ind/cap represents inductive/capacitive character. Minus sign indicates generated and plus sign indicates consumed fundamental reactive power. This parameter is recorded separately for each quadrant as shown on figure. See 5.1.5 for definition.



totcap



totind

Instantaneous positive sequence of total fundamental reactive power. Suffix ind/cap represents inductive/ capacitive character. Minus sign indicates generated and plus sign indicates consumed reactive power. See 5.1.5 for definition.

totind



totcap



Recorded positive sequence of total fundamental reactive power. Suffix ind/cap represents inductive/capacitive character. Minus sign indicates generated and plus sign indicates consumed reactive power. This parameter is recorded separately for each quadrant.

Combined (fundamental and nonfundamental) phase apparent power including Sp (phase p apparent power). See 5.1.5 for definition.

tot

Combined (fundamental and nonfundamental) total effective apparent power. See 5.1.5 for definition.

Sfund

Phase fundamental apparent power, including Sfundp (phase p fundamental apparent power). See 5.1.5 for definition.

tot

Positive sequence of total fundamental effective apparent power. See 5.1.5 for definition.

Sᴜfund

tot

Unbalanced fundamental apparent power. See 5.1.5 for definition.

Sɴ

Phase nonfundamental apparent power, including Sɴp (phase p nonfundamental apparent power). See 5.1.5 for definition.

Seɴ

Total nonfundamental effective apparent power. See

5.1.5 for definition.

Sн

Phase harmonic apparent power, including Sнp (phase p harmonic apparent power). See 5.1.5 for definition.

Seн

tot

Total harmonic effective apparent power. See 5.1.5 for definition.

THD

Total harmonic distortion current (in % or A), including

THDIp (phase p current THD) and THD

(neutral current

THD). See 5.1.7 for definition

270

Qind

Lead

Lag

Qcap

Qind

180

+P-P

-Q

III IV

Page 17

MI 2883 Energy Master Introduction

THDU

Total harmonic distortion voltage related (in % or V) including THD

Upg

(phase p to phase g voltage THD) and

THDUp (phase p to neutral voltage THD). See 5.1.10 for

definition.

Negative sequence voltage ratio (%). See 5.1.10 for definition.

Zero sequence voltage ratio (%). See 5.1.10 for definition.

U, U

Rms

RMS voltage, including U

(phase p to phase g voltage)

and Up (phase p to neutral voltage). See 5.1.2 for definition.

Positive sequence voltage component on three phase systems. See 5.1.10 for definition.

U-

Negative sequence voltage component on three phase systems. See 5.1.10 for definition.

Zero sequence voltage component on three phase systems. See 5.1.10 for definition.

Dip

Minimal U

Rms(1/2)

voltage measured during dip occurrence

Ufund

Fundamental RMS voltage (Uh1 on 1st harmonics), including Ufund

(phase p to phase g fundamental RMS

voltage) and Ufundp (phase p to neutral fundamental RMS voltage). See 5.1.7 for definition

UhN,

nth voltage RMS harmonic component including Upgh

(phase p to phase g voltage nth RMS harmonic component) and Uph

(phase p to neutral voltage n

RMS

harmonic component). See 5.1.7 for definition.

UihN

nth voltage RMS interharmonic component including

Upgih

(phase p to phase g voltage n

RMS interharmonic

component) and Upih

(phase p to neutral voltage n

RMS interharmonic component). See 5.1.7 for definition.

Nth RMS interharmonic voltage component measured between phases. See 5.1.7 for definition.

Int

Minimal U

Rms(1/2)

voltage measured during interrupt

occurrence.

Nom

Nominal voltage, normally a voltage by which network is designated or identified.

Over

Voltage overdeviation, difference between the measured value and the nominal value of a voltage, only when the measured value is greater than the nominal value. Voltage overdeviation measured over recorded interval, expressed in % of nominal voltage including U

pgOver

(phase p to phase g voltage) and UpOver (phase p to neutral voltage). See 5.1.11 for details.

Peak voltage, including U

pgPk

(phase p to phase g

Page 18

MI 2883 Energy Master Introduction

voltage) and UpPk (phase p to neutral voltage)

Rms(1/2)

RMS voltage refreshed each half-cycle, including

pgRms(1/2)

(phase p to phase g half-cycle voltage) and

Rms(1/2)

(phase p to neutral half-cycle voltage). See

5.1.11 for definition.

Swell

Maximal U

Rms(1/2)

voltage measured during swell

occurrence.

Sig

Mains signalling RMS voltage, including U

Sigpg

(phase p to

phase g half-cycle signalling voltage) and U

Sig

p (phase p

to neutral half-cycle signalling voltage). Signalling is a burst of signals, often applied at a non-harmonic frequency, that remotely control equipment. See 5.2.6 for details.

Under

Voltage underdeviation, difference between the measured value and the nominal value of a voltage, only when the voltage is lower than the nominal value. Voltage underdeviation measured over recorded interval and expressed in % of nominal voltage, including U

pgUnder

(phase p to phase g voltage) and U

pUnder

(phase p to

neutral voltage). See 5.1.11 for details.

∆U

max

Maximum absolute difference between any of the U

Rms(1/2)

values during the RVC event and the final arithmetic mean 100/120 U

Rms(1/2)

value just prior to the RVC event.

For poly-phase systems, the ∆U

max

is the largest ∆U

max

on any channel. See 5.1.14 for details.

∆U

Absolute difference between the final arithmetic mean 100/120 U

Rms(1/2)

value just prior to the RVC event and

the first arithmetic mean 100/120 U

Rms(1/2)

value after the RVC event. For poly-phase systems, the ∆Uss is the largest ∆Uss on any channel. See 5.1.14 for details.

Page 19

MI 2883 Energy Master Description

1. LCD

Colour TFT display, 4.3 inch, 480 x 272 pixels.

2. F1 – F4

Function keys.

3. ARROW keys

Moves cursor and select parameters.

4. ENTER key

Step into submenu.

5. ESC key

Exits any procedure, confirms new settings.

6. SHORTCUT keys

Quick access to main instrument functions.

7. LIGHT key (BEEP OFF)

Adjust LCD backlight intensity: high/low//off If the LIGHT key is pressed for more than 1.5 seconds, beeper will be disabled. Press & hold again to enable it.

2 Description

2.1 Front panel

Front panel layout:

Figure 2.1: Front panel

Page 20

MI 2883 Energy Master Description

8. ON-OFF key

Turns on/off the instrument.

9. COVER

Communication ports and microSD card slot protection.

Warnings! Use safety test leads only! Max. permissible nominal voltage

between voltage input terminals and ground is 1000 V

RMS

Max. short-term voltage of external power

supply adapter is 14 V!

2.2 Connector panel

Figure 2.2: Top connector panel

Top connector panel layout:

1 Clamp-on current transformers (I1, I2, I3, IN ) input terminals. 2 Voltage (L1, L2, L3, N) input terminals. 3 12 V external power socket.

Figure 2.3: Side connector panel

Side connector panel layout:

1 MicroSD card slot. 2 Serial connector (used to connect printer). 3 Ethernet connector – not in use. 4 USB connector.

Page 21

MI 2883 Energy Master Description

Description

Pieces

Flexible current clamp 3000 A / 300 A / 30 A (A 1227)

Colour coded test probe

Colour coded crocodile clip

Colour coded voltage measurement lead

USB cable

RS232 cable

12 V / 1.2 A Power supply adapter

NiMH rechargeable battery, type HR 6 (AA)

Soft carrying bag

Compact disc (CD) with PowerView v3.0 and manuals

2.3 Bottom view

Figure 2.4: Bottom view

Bottom view layout:

1. Battery compartment cover.

2. Battery compartment screw (unscrew to replace the batteries).

3. Serial number label.

2.4 Accessories

2.4.1 Standard accessories

Table 2.1: Energy Master standard accessories

2.4.2 Optional accessories

See the attached sheet for a list of optional accessories that are available on request from your distributor.

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MI 2883 Energy Master Operating the instrument

Escape

Function keys

Cursor keys, Enter

Press & Hold to disable beeper

Power On/Off

Status bar

Backlight On/Off

Shortcut keys

Press & Hold for waveform snapshoot

Screen Name

Y-axsis scale

X-axsis scale (time)

Options for function keys (F1 – F4)

Status Bar

3 Operating the instrument

This section describes how to operate the instrument. The instrument front panel consists of a colour LCD display and keypad. Measured data and instrument status are shown on the display. Basic display symbols and keys description is shown on figure below.

During measurement campaign various screens can be displayed. Most screens share common labels and symbols. These are shown on figure below.

Figure 3.2: Common display symbols and labels during measurement campaign

Figure 3.1: Display symbols and keys description

Page 23

MI 2883 Energy Master Operating the instrument

Status bar

Indicates battery charge level.

Indicates that charger is connected to the instrument. Batteries will be charged automatically when charger is present.

Instrument is locked (see section 3.20.5 for details).

AD converter over range. Selected Nominal voltage or current clamps range is too small.

09:19

Current time.

Recorder status:

General recorder is active, waiting for trigger.

General recorder is active, recording in progress.

Memory list recall. Shown screen is recalled from instrument memory.

Flagged data mark. While observing recorded data this mark will indicate that observed measurement results for given time interval can be compromised due to interrupt, dip or swells occurrence. See section

5.1.16 for further explanation.

Signalling voltage is present on voltage line at monitored frequencies. See sections 3.13 and 3.19.4 for further explanation.

USB stick communication mode. In this mode selected record can be transferred from microSD card to USB stick. USB communication with PC is disabled while in this mode. See section 3.18 for details.

3.1 Instrument status bar

Instruments status bar is placed on the top of the screen. It indicates different instrument states. Icon descriptions are shown on table below.

Figure 3.3: Instrument status bar

Table 3.1: Instrument status bar description

3.2 Instrument keys

Instrument keyboard is divided into four subgroups:

 Function keys  Shortcut keys  Menu/zoom manipulation keys: Cursors, Enter, Escape

Page 24

MI 2883 Energy Master Operating the instrument

UIf

Shows UIF Meter screen from MEASUREMENT submenu

PQS

Shows Power meter screen from MEASUREMENT submenu

Shows Harmonics meter screen from MEASUREMENT submenu

Shows Connection Setup screen from MEASUREMENT SETUP submenu

Shows Phase diagram screen from MEASUREMENT submenu

Hold key for 2 seconds to trigger WAVEFORM SNAPSHOT. Instrument will record all measured parameters into file, which can be then analysed by PowerView.

Set backlight intensity (high/low/off).

Hold key for 2 s to disable/enable beeper sound signals.

Switch On/off the instrument. Note: instrument will not power off if any recorder is active. Note: Hold key for 5 seconds in order to reset instrument, in case of failure.

 Other keys: Light and Power on/off keys

Function keys are multifunctional. Their current function is shown at the bottom of the screen and depends on selected instrument function.

Shortcut keys are shown in table below. They provide quick access to the most common instrument functions.

Table 3.2: Shortcut Keys and other Function keys

Cursor, Enter and Escape keys are used for moving through instrument menu structure, entering various parameters. Additionally, cursor keys are used for zooming graphs and moving graph cursors.

3.3 Instrument memory (microSD card)

Energy Master use microSD card for storing records. Prior instrument use, microSD card should be formatted to a single partition FAT32 file system and inserted into the instrument, as shown on figure below.

Page 25

MI 2883 Energy Master Operating the instrument

microSD Card

Figure 3.4: Inserting microSD card

1. Open instrument cover

2. Insert microSD card into a slot on the instrument (card should be putted upside down, as shown on figure)

3. Close instrument cover

Note: Do not turn off the instrument while microSD card is accessed:

- during record session

- observing recorded data in MEMORY LIST menu

Doing so may cause data corruption, and permanent data lost.

Note: SD Card should have single FAT32 partition. Do not use SD cards with multiple partitions.

3.4 Instrument Main Menu

After powering on the instrument the “MAIN MENU” is displayed. From this menu all instrument functions can be selected.

Page 26

MI 2883 Energy Master Operating the instrument

MEASUREMENT submenu. Provide access to various instrument measurement screens

RECORDER submenu. Provide access to instrument recorders configuration and storage.

MEASUREMENT SETUP submenu. Provide access to the measurement settings.

GENERAL SETUP submenu. Provide access to the various instrument settings.

Selects submenu. Enters selected submenu.

ENTER

Figure 3.5: “MAIN MENU”

Table 3.3: Instrument Main menu

Table 3.4: Keys in Main menu

3.4.1 Instrument submenus

By pressing ENTER key in Main menu, user can select one of four submenus:

 Measurements – set of basic measurement screens,  Recorders – setup and view of various recordings,  Measurement setup – measurement parameters setup,  General setup – configuring common instrument settings.

List of all submenus with available functions are presented on following figures.

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MI 2883 Energy Master Operating the instrument

Figure 3.6: Measurements submenu

Figure 3.7: Recorders submenu

Figure 3.8: Measurement setup submenu

Figure 3.9: General setup submenu

Page 28

MI 2883 Energy Master Operating the instrument

Selects function within each submenu. Enters selected function.

Returns to the “MAIN MENU”.

ENTER

Table 3.5: Keys in submenus

3.5 U, I, f

Voltage, current and frequency parameters can be observed in the “U, I, f” screens. Measurement results can be viewed in a tabular (METER) or a graphical form (SCOPE, TREND). TREND view is active only in RECORDING mode. See section 3.14 for details.

3.5.1 Meter

By entering U, I, f option, the U, I, f – METER tabular screen is shown (see figures below).

Figure 3.10: U, I, f meter phase table screens (L1, L2, L3, N)

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MI 2883 Energy Master Operating the instrument

RMS

True effective value U

Rms

and I

Rms

THD

ThdU

ThdI

Total harmonic distortion THDU and THDI

Crest factor CFU and CFI

PEAK

Peak value UPk and IPk

MAX

Maximal U

Rms(1/2)

voltage and maximal I

Rms(1/2)

current, measured

after RESET (key: F2)

MIN

Minimal U

Rms(1/2)

voltage and minimal I

Rms(1/2)

current, measured after

RESET (key: F2)

Frequency on reference channel

HOLD

Holds measurement on display. Hold clock time will be displayed in the right top corner.

RUN

Runs held measurement.

RESET

Resets MAX and MIN values (U

Rms(1/2)

and I

Rms(1/2)

1 2 3 N  Δ

Shows measurements for phase L1.

1 2 3 N  Δ

Shows measurements for phase L2.

1 2 3 N  Δ

Shows measurements for phase L3.

1 2 3 N  Δ

Shows measurements for neutral channel.

Figure 3.11: U, I, f meter summary table screens

In those screens on-line voltage and current measurements are shown. Descriptions of symbols and abbreviations used in this menu are shown in table below.

Table 3.6: Instrument screen symbols and abbreviations

Note: In case of overloading current or overvoltage on AD converter, icon will be displayed in the status bar of the instrument.

Table 3.7: Keys in Meter screens

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MI 2883 Energy Master Operating the instrument

1 2 3 N  Δ

Shows measurements for all phases.

1 2 3 N  Δ

Shows measurements for all phase to phase voltages.

12 23 31 Δ

Shows measurements for phase to phase voltage L12.

12 23 31 Δ

Shows measurements for phase to phase voltage L23.

12 23 31 Δ

Shows measurements for phase to phase voltage L31.

12 23 31 Δ

Shows measurements for all phase to phase voltages.

METER

Switches to METER view.

SCOPE

Switches to SCOPE view.

TREND

Switches to TREND view (available only during recording).

Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

Figure 3.12: Voltage only waveform

Figure 3.13: Current only waveform

Figure 3.14: Voltage and current

waveform (single mode)

Figure 3.15: Voltage and current

waveform (dual mode)

3.5.2 Scope

Various combinations of voltage and current waveforms can be displayed on the instrument, as shown below.

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MI 2883 Energy Master Operating the instrument

U1, U2, U3

True effective value of phase voltage: U1, U2, U3

U12, U23, U31

True effective value of phase-to-phase (line) voltage: U12, U23, U31

I1, I2, I3, In

True effective value of current: I1, I2, I3, IN

HOLD

Holds measurement on display.

RUN

Runs held measurement.

Selects which waveforms to show:

U I U,I U/I

Shows voltage waveform.

U I U,I U/I

Shows current waveform.

U I U,I U/I

Shows voltage and current waveform (single graph).

U I U,I U/I

Shows voltage and current waveform (dual graph).

Selects between phase, neutral, all-phases and line view:

1 2 3 N  Δ

Shows waveforms for phase L1.

1 2 3 N  Δ

Shows waveforms for phase L2.

1 2 3 N  Δ

Shows waveforms for phase L3.

1 2 3 N  Δ

Shows waveforms for neutral channel.

1 2 3 N  Δ

Shows all phase waveforms.

1 2 3 N  Δ

Shows all phase-to-phase waveforms.

12 23 31 Δ

Shows waveforms for phase L12.

12 23 31 Δ

Shows waveforms for phase L23.

12 23 31 Δ

Shows waveforms for phase L31.

12 23 31 Δ

Shows all phase waveforms.

METER

Switches to METER view.

SCOPE

Switches to SCOPE view.

TREND

Switches to TREND view (available only during recording).

Selects which waveform to zoom (only in U/I or U+I).

Sets vertical zoom.

Sets horizontal zoom. Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

ENTER

Table 3.8: Instrument screen symbols and abbreviations

Table 3.9: Keys in Scope screens

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MI 2883 Energy Master Operating the instrument

Figure 3.16: Voltage trend (all voltages)

Figure 3.17: Voltage trend (single

voltage)

Figure 3.18: Voltage and current trend

(single mode)

Figure 3.19: Voltage and current trend

(dual mode)

Figure 3.20: Trends of all currents

Figure 3.21: Frequency trend

3.5.3 Trend

While GENERAL RECORDER is active, TREND view is available (see section 3.14 for instructions how to start recorder).

Voltage and current trends

Current and voltage trends can be observed by cycling function key F4 (METERSCOPE-TREND).

Page 33

MI 2883 Energy Master Operating the instrument

U1, U2, U3,

U12, U23,

U31

Maximal ( ), average ( ) and minimal ( ) value of phase RMS voltage U1, U2, U3 or line voltage U12, U23, U31 for time interval (IP) selected by cursor.

I1, I2, I3, In

Maximal ( ), average ( ) and minimal ( ) value of current I1, I2, I3, IN for time interval (IP) selected by cursor.

Maximal ( ), active average ( ) and minimal ( ) value of frequency at synchronization channel for time interval (IP) selected by cursor.

10.May.2013

12:02:00

Timestamp of interval (IP) selected by cursor.

32m 00s

Current GENERAL RECORDER time (d - days, h - hours, m - minutes, s - seconds)

Selects between the following options:

U I f U,I U/I

Shows voltage trend.

U I f U,I U/I

Shows current trend.

U I f U,I U/I

Shows frequency trend.

U I f U,I U/I

Shows voltage and current trend (single mode).

U I f U,I U/I

Shows voltage and current trend (dual mode).

Selects between phases, neutral channel, all-phases view:

1 2 3 N 

Shows trend for phase L1.

1 2 3 N 

Shows trend for phase L2.

1 2 3 N 

Shows trend for phase L3.

1 2 3 N 

Shows trend for neutral channel.

1 2 3 N 

Shows all phases trends.

12 23 31 Δ

Shows trend for phases L12.

12 23 31 Δ

Shows trend for phases L23.

12 23 31 Δ

Shows trend for phases L31.

12 23 31 Δ

Shows all phase-to-phase trends.

METER

Switches to METER view.

SCOPE

Switches to SCOPE view.

TREND

Switches to TREND view.

Moves cursor and selects time interval (IP) for observation. Returns to the “MEASUREMENTS” submenu.

Table 3.10: Instrument screen symbols and abbreviations

Table 3.11: Keys in Trend screens

3.6 Power

In POWER screens instrument shows measured power parameters. Results can be seen in a tabular (METER) or a graphical form (TREND). TREND view is active only

Page 34

MI 2883 Energy Master Operating the instrument

Figure 3.22: Power measurements

summary (combined)

Figure 3.23: Power measurements

summary (fundamental)

Figure 3.24: Detailed power

measurements at phase L1

Figure 3.25: Detailed total power

measurements

Depending on the screen position: In Combined column: Combined (fundamental and

nonfundamental) active power (P1, P2, P3, P

tot

In Fundamental column: Fundamental active phase power (Pfund1, Pfund2, Pfund3)

Combined (fundamental and nonfundamental) nonactive power (N1, N2, N3, N

tot

Fundamental reactive phase power (Qfund1, Qfund2, Qfund3)

Depending on the screen position:

while GENERAL RECORDER is active. See section 3.14 for instructions how to start recorder. In order to fully understand meanings of particular power parameter see sections 5.1.5.

3.6.1 Meter

By entering POWER option from Measurements submenu the tabular POWER (METER) screen is shown (see figure below).

Description of symbols and abbreviations used in POWER (METER) screens are shown in table below.

Table 3.12: Instrument screen symbols and abbreviations (see 5.1.5 for details) – instantaneous values

Page 35

MI 2883 Energy Master Operating the instrument

In Combined column: Combined (fundamental and nonfundamental) apparent phase power (S1, S2, S3)

In Fundamental column: Fundamental active phase power (Sfund1, Sfund2, Sfund3)

P+

Positive sequence of total active fundamental power (P

tot

)

Q+

Positive sequence of total reactive fundamental power (Q

tot

)

S+

Positive sequence of total apparent fundamental power (S

tot

)

DPF+

Positive sequence power factor (fundamental, total)

Combined (fundamental and nonfundamental) total effective apparent power (Se

tot

)

Sɴ

Phase nonfundamental apparent power (Sɴ

, Sɴ

, Sɴ3)

Seɴ

Total effective nonfundamental apparent power (Seɴ

tot

)

Dı

Phase current distortion power (Dı1, Dı2, Dı

)

Deı

Total effective current distortion power (Deı

tot

)

Dᴠ

Phase voltage distortion power (Dᴠ1, Dᴠ2, Dᴠ

)

Deᴠ

Total effective voltage distortion power (Deᴠ

tot

)

Pн

Phase and total harmonic active power (P

,P

Htot

)

Phase combined (fundamental and nonfundamental) power factor (PF1, PF2, PF3)

PFe

Total effective combined (fundamental and nonfundamental) power factor (PFe)

DPF

Phase fundamental power factor (DPF1, DPF2, DPF3,) and positive sequence total power factor (DPF+)

Harmonic Pollut.

Harmonic pollution according to the standard IEEE 1459

Load unbalance

Load unbalance according to the standard IEEE 1459

HOLD

Holds measurement on display. Hold clock time will be displayed in the right top corner.

RUN

Runs held measurement.

VIEW

Switches between Combined, Fundamental and Nonfundamental view.

1 2 3  T

Shows measurements for phase L1.

1 2 3 T

Shows measurements for phase L2.

1 2 3  T

Shows measurements for phase L3.

1 2 3  T

Shows brief view on measurements on all phases in a single screen.

1 2 3  T

Shows measurement results for TOTAL power measurements.

Table 3.13: Keys in Power (METER) screens

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MI 2883 Energy Master Operating the instrument

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

P1±, P2±, P3±, Pt±

View: Combined power Maximal ( ), average ( ) and minimal ( ) value of consumed

, P

tot

) or generated (P

, P

tot

) active

combined power for time interval (IP) selected by cursor.

P1±, P2±, P3±, P+±

View: Fundamental power Maximal ( ), average ( ) and minimal ( ) value of consumed

(Pfund

, Pfund

, P+

tot

) or generated (Pfund

, Pfund2,

Pfund3, P+

tot

) active fundamental power for time interval (IP)

selected by cursor.

Ni1±, Ni2±, Ni3±, Nit±

View: Combined power Maximal ( ), average ( ) and minimal ( ) value of consumed

1ind

, N

2ind

, N

3ind

, N

totind

) or generated (N

1ind

, N

2ind

, N

3ind

totind

) inductive combined nonactive power for time interval (IP)

selected by cursor.

Nc1±, Nc2±, Nc3±, Nct±

View: Combined power Maximal ( ), average ( ) and minimal ( ) value of consumed

1cap

, N

2cap

, N

3cap

, N

totcap

) or generated (N

1cap

, N

2cap

, N

3cap

totcap

) capacitive combined nonactive power for time interval (IP)

selected by cursor.

S1, S2, S3, Se

View: Combined power Maximal ( ), average ( ) and minimal ( ) value of combined

apparent power (S1, S2, S3, Se

tot

) for time interval (IP) selected by

cursor.

3.6.2 Trend

During active recording TREND view is available (see section 3.14 for instructions how to start GENERAL RECORDER).

Figure 3.26: Power trend screen

Table 3.14: Instrument screen symbols and abbreviations

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MI 2883 Energy Master Operating the instrument

S1, S2, S3, S+

View: Fundamental power Maximal ( ), average ( ) and minimal ( ) value of fundamental

apparent power (Sfund1, Sfund2, Sfund3, S

tot

) for time interval

(IP) selected by cursor.

PFi1±, PFi2±, PFi3±, PFit±

View: Combined power Maximal ( ), average ( ) and minimal ( ) value of inductive

power factor (1st quadrant: PF

1ind

, PF

2ind

, PF

3ind

, PF

totind

and 3rd

quadrant: PF

1ind

, PF

2ind

, PF

3ind

, PF

totind

) for time interval (IP)

selected by cursor.

PFc1±, PFc2±, PFc3±, PFct±

View: Combined power Maximal ( ), average ( ) and minimal ( ) value of capacitive

power factor (4th quadrant: PF

1cap

, PF

2cap

, PF

3cap

, PF

totcap

and

2nd quadrant: PF

1cap

, PF

2cap

, PF

3cap

, PF

totcap

) for time interval

(IP) selected by cursor.

Qi1±, Qi2±, Qi3±, Q+i±

View: Fundamental power Maximal ( ), average ( ) and minimal ( ) value of consumed

1ind

, Q

2ind

, Q

3ind

, Q

totind

) or generated (Q

1ind

, Q

2ind

, Q

3ind

totind

) fundamental reactive inductive power for time interval (IP)

selected by cursor.

Qc1±, Qc2±, Qc3±, Q+c±

View: Fundamental power Maximal ( ), average ( ) and minimal ( ) value of consumed

1cap

, Q

2cap

, Q

3cap

, Q

captot

) or generated (Q

1cap

, Q

2cap

, Q

3cap

captot

) fundamental reactive capacitive power for time interval

(IP) selected by cursor.

DPFi1±, DPFi2±, DPFi3± DPF+it±

View: Fundamental power Maximal ( ), average ( ) and minimal ( ) value of inductive

displacement power factor (1st quadrant: DPF

1ind

, DPF

2ind

DPF

3ind

, DPF

totind

, and 3rd quadrant: DPF

1ind

, DPF

2ind

, DPF

3ind

DPF

totind

,) for time interval (IP) selected by cursor.

DPFc1±, DPFc2±, DPFc3± DPF+ct±

View: Fundamental power Maximal ( ), average ( ) and minimal ( ) value of capacitive

displacement power factor (4th quadrant: DPF

1cap

, DPF

2cap

DPF

3cap

, DPF

totcap

, and 2nd quadrant: DPF

1cap

, DPF

2cap

DPF

3cap

, DPF

totcap

) for time interval (IP) selected by cursor.

Sn1, Sn2, Sn3, Sen

View: Nonfundamental power Maximal ( ), average ( ) and minimal ( ) value of consumed or

generated nonfundamental apparent power (Sɴ

, Sɴ2, Sɴ3, Seɴ

tot

)

for time interval (IP) selected by cursor.

Di1, Di2, Di3, Dei

View: Nonfundamental power Maximal ( ), average ( ) and minimal ( ) value of consumed or

generated phase current distortion power (Dı

, Dı2, Dı3, Deı

tot

) for

time interval (IP) selected by cursor.

Dv1, Dv2, Dv3, Dev

View: Nonfundamental power Maximal ( ), average ( ) and minimal ( ) value of consumed or

generated phase voltage distortion power (Dv1, Dv2, Dv3, Dev

tot

)

for time interval (IP) selected by cursor.

Ph1±, Ph2±, Ph3±, Pht±

View: Nonfundamental power Maximal ( ), average ( ) and minimal ( ) value of consumed

Page 38

MI 2883 Energy Master Operating the instrument

, P

Htot

) or generated (P

, P

Htot

) active

harmonic power for time interval (IP) selected by cursor.

VIEW

Selects which measurement should instrument represent on graph:

 Consumed or Generated

Measurements related to consumed (suffix: +) or generated power (suffix: -).

 Combined, Fundamental or Nonfundamental

Measurement related to fundamental power, nonfundamental power or combined.

Keys in VIEW window:

Selects option. Confirms selected option.

Exits selection window without change.

If Combined power is selected:

P Ni Nc S PFi Pfc

Shows combined active power trend.

P Ni Nc S PFi Pfc

Shows combined inductive nonactive power trend.

P Ni Nc S PFi Pfc

Shows combined capacitive nonactive power trend.

P Ni Nc S PFi Pfc

Shows combined apparent power trend.

P Ni Nc S PFi Pfc

Shows inductive power factor trend.

P Ni Nc S Pfi PFc

Shows capacitive power factor trend.

If Fundamental power is selected:

P Qi Qc S DPFi DPfc

Shows fundamental active power trend.

P Qi Qc S DPFi DPfc

Shows fundamental inductive reactive power trend.

P Qi Qc S DPFi DPfc

Shows fundamental capacitive reactive power trend.

P Qi Qc S DPFi DPfc

Shows fundamental apparent power trend.

P Qi Qc S DPFi DPfc

Shows inductive displacement power factor trend.

P Qi Qc S DPfi DPFc

Shows capacitive displacement power factor trend.

If Nonfundamental power is selected:

Sn Di Dv Ph

Shows nonfundamental apparent power trend.

Sn Di Dv Ph

Shows nonfundamental current distortion power.

Sn Di Dv Ph

Shows nonfundamental voltage distortion power.

ENTER

Table 3.15: Keys in Power (TREND) screens

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MI 2883 Energy Master Operating the instrument

Sn Di Dv Ph

Shows nonfundamental active power.

Selects between phase, all-phases and Total power view:

1 2 3  T

Shows power parameters for phase L1.

1 2 3 T

Shows power parameters for phase L2.

1 2 3  T

Shows power parameters for phase L3.

1 2 3  T

Shows power parameters for phases L1, L2 and L3 on the same graph.

1 2 3  T

Shows Total power parameters.

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

Moves cursor and selects time interval (IP) for observation. Returns to the “MEASUREMENTS” submenu.

Ep+

Ep-

Consumed (+) phase (Ep

, Ep

) or total (Ep

tot

) active energy

Generated (-) phase (Ep

, Ep

) or total (Ep

tot

) active energy

Eq+

Eq-

Consumed (+) phase (Eq

, Eq

) or total (Eq

tot

) fundamental reactive energy Generated (-) phase (Eq

, Eq

) or total (Eq

tot

) fundamental reactive

energy

Start

Recorder start time and date

Duration

Recorder elapsed time

3.7 Energy

3.7.1 Meter

Instrument shows status of energy counters in energy menu. Results can be seen in a tabular (METER) form. Energy measurement is active only if GENERAL RECORDER is active. See section 3.14 for instructions how to start GENERAL RECORDER. The meter screens are shown on figures below.

Figure 3.27: Energy counters screen

Table 3.16: Instrument screen symbols and abbreviations

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MI 2883 Energy Master Operating the instrument

HOLD

Holds measurement on display.

RUN

Runs held measurement.

TOT LAST CUR

Shows energy registers for whole record.

TOT LAST CUR

Shows energy registers for last interval.

TOT LAST CUR

Shows energy registers for current interval.

1 2 3  T

Shows energy parameters for phase L1.

1 2 3 T

Shows energy parameters for phase L2.

1 2 3  T

Shows energy parameters for phase L3.

1 2 3  T

Shows all phases energy.

1 2 3  T

Shows energy parameters for Totals.

METER

Switches to METER view.

TREND

Switches to TREND view.

EFF

Switches to EFFICIENCY view.

Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

Ep+

Ep-

Consumed (+) phase (Ep

, Ep

) or total (Ep

tot

) active energy

Generated (-) phase (Ep

, Ep

) or total (Ep

tot

) active energy

Eq+

Eq-

Consumed (+) phase (Eq

, Eq

) or total (Eq

tot

) fundamental reactive energy Generated (-) phase (Eq

, Eq

) or total (Eq

tot

) fundamental reactive

energy

Start

Recorder start time and date

Duration

Recorder elapsed time

Table 3.17: Keys in Energy (METER) screens

3.7.2 Trend

TREND view is available only during active recording (see section 3.14 for instructions how to start GENERAL RECORDER).

Figure 3.28: Energy trend screen

Table 3.18: Instrument screen symbols and abbreviations

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MI 2883 Energy Master Operating the instrument

Ep+ Eq+ Ep- Eq-

Shows active consumed energy for time interval (IP) selected by cursor.

Ep+ Eq+ Ep- Eq-

Shows reactive consumed energy for time interval (IP) selected by cursor.

Ep+ Eq+ Ep- Eq-

Shows active generated energy for time interval (IP) selected by cursor.

Ep+ Eq+ Ep- Eq-

Shows reactive generated energy for time interval (IP) selected by cursor.

1 2 3  T

Shows energy records for phase L1.

1 2 3 T

Shows energy records for phase L2.

1 2 3  T

Shows energy records for phase L3.

1 2 3  T

Shows all phases energy records.

1 2 3  T

Shows energy records for Totals.

METER

Switches to METER view.

TREND

Switches to TREND view.

EFF

Switches to EFFICIENCY view.

Returns to the “MEASUREMENTS” submenu.

P avg+ P+ avg+ P avgP+ avg-

Consumed phase fundamental active power (Pfund

, Pfund

)

Positive sequence of total fundamental consumed active power (P

tot

)

Generated phase fundamental active power (Pfund

, Pfund

)

Positive sequence of total fundamental generated active power (P

tot

)

Shown active power is averaged over chosen time interval (key: F2)

 TOT – shows total average (for complete record) active power  LAST – shows average active power in the last interval  MAX - shows average active power in interval where Ep was

Table 3.19: Keys in Energy (TREND) screens

3.7.3 Efficiency

EFFICIENCY view is available only during active recording (see section 3.14 for instructions how to start GENERAL RECORDER).

Figure 3.29: Energy efficiency screen

Table 3.20: Instrument screen symbols and abbreviations

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MI 2883 Energy Master Operating the instrument

maximal.

Qi avg+ Qi+ avg+

Qi avgQi+ avg-

Consumed phase fundamental inductive reactive power (Qfund

ind1

Qfund

ind2

, Qfund

ind3

)

Positive sequence of total inductive fundamental consumed reactive power (Q

tot

)

Generated phase fundamental inductive reactive power (Qfund

ind1

Qfund

ind2

, Qfund

ind3

)

Positive sequence of total inductive fundamental generated reactive power (Q

tot

)

Shown fundamental inductive reactive power is averaged over chosen time interval (key: F2)

 TOT – shows total average (for complete record) fundamental

inductive reactive power

 LAST – shows average fundamental inductive reactive power in the

last interval

 MAX – shows average fundamental inductive reactive power in

interval where Ep was maximal.

Qc avg+ Qc+ avg+

Qc avgQc+ avg-

Consumed phase fundamental capacitive reactive power (Qfund

cap1

Qfund

cap2

, Qfund

cap3

)

Positive sequence of total capacitive fundamental consumed reactive power (Q

tot

)

Generated phase fundamental capacitive reactive power (Qfund

cap1

Qfund

cap2

, Qfund

cap3

)

Positive sequence of total capacitive fundamental generated reactive power (Q

tot

)

Shown fundamental capacitive reactive power is averaged over chosen time interval (key: F2)

 TOT – shows total average (for complete record) fundamental

capacitive reactive power

 LAST – shows average fundamental capacitive reactive power in

the last interval

 MAX – shows average fundamental capacitive reactive power in

interval where Ep was maximal.

Sn avg Sen avg

Phase nonfundamental apparent power (Sɴ1, Sɴ2, Sɴ3) Total effective nonfundamental apparent power (Seɴ).

Shown nonfundamental apparent power is averaged over chosen time interval (key: F2)

 TOT – shows total average (for complete record) of nonfundamental

apparent power

 LAST – shows average nonfundamental apparent power in the last

interval

 MAX – shows average nonfundamental apparent power in interval

where Ep was maximal.

Fundamental unbalanced power, according to the IEEE 1459-2010

Ep+ Ep-

Consumed phase (Ep

, Ep

) or total (Ep

tot

) active energy

Generated phase (Ep

, Ep

) or total (Ep

tot

) active energy

Shown active energy depends on chosen time interval (key: F2)

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MI 2883 Energy Master Operating the instrument

 TOT – shows accumulated energy for complete record  LAST – shows accumulated energy in last interval  MAX – shows maximal accumulated energy in any interval

Eq+ Eq-

Consumed (+) phase (Eq

, Eq

) or total (Eq

tot

) fundamental reactive energy Generated (-) phase (Eq

, Eq

) or total (Eq

tot

) fundamental reactive energy Shown reactive energy depends on chosen time interval (key: F2)

 TOT – shows accumulated energy for complete record  LAST – shows accumulated energy in last interval  MAX – shows accumulated reactive energy in interval where Ep

was maximal.

Conducto

utilisation

Shows conductor cross section utilisation for chosen time interval (TOT/LAST/MAX):

 GREEN colour – represents part of conductor cross section

(wire) used for active energy transfer (Ep)

 RED colour – represents part of conductor cross section

(wire) used for fundamental reactive energy transfer (Eq)

 BLUE colour – represents part of conductor cross section

(wire) used for nonfundamental (harmonic) apparent energy transfer (Sɴ)

 BROWN colour – represents unbalanced power (SU) portion

flowing in polyphase system in respect to phase power flow.

Date

End time of shown interval.

Max.

Power

Demand

Shows three intervals where measured active power was maximal.

VIEW

Switches between Consumed (+) and Generated (-) energy view.

TOT LAST MAX

Shows parameters for complete record duration

TOT LAST MAX

Shows parameters for last (complete) recorded interval

TOT LAST MAX

Shows parameters for interval, where active energy was maximal

1 2 3  T

Shows energy records for phase L1.

1 2 3 T

Shows energy records for phase L2.

1 2 3  T

Shows energy records for phase L3.

1 2 3  T

Shows all phases energy records.

1 2 3  T

Shows energy records for Totals.

METER

Switches to METER view.

TREND

Switches to TREND view.

EFF

Switches to EFFICIENCY view.

Returns to the “MEASUREMENTS” submenu.

Table 3.21: Keys in Energy (TREND) screens

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MI 2883 Energy Master Operating the instrument

RMS

RMS voltage / current value

THD

Total voltage / current harmonic distortion THDU and THDI in % of fundamental voltage / current harmonic or in RMS V, A.

k-factor (unit-less) indicates the amount of harmonics that load generate

Voltage or current DC component in % of fundamental voltage / current harmonic or in RMS V, A.

h1 … h50

n-th harmonic voltage Uhn or current Ihn component in % of fundamental voltage / current harmonic or in RMS V, A.

ih0 … ih50

n-th interharmonic voltage Uihn or current Iihn component in % of fundamental voltage / current harmonic or in RMS V, A.

HOLD

Holds measurement on display. Hold clock time will be displayed in the right top corner.

RUN

Runs held measurement.

3.8 Harmonics / interharmonics

Harmonics presents voltage and current signals as a sum of sinusoids of power frequency and its integer multiples. Sinusoidal wave with frequency k-times higher than fundamental (k is an integer) is called harmonic wave and is denoted with amplitude and a phase shift (phase angle) to a fundamental frequency signal. If a signal decomposition with Fourier transformation results with presence of a frequency that is not integer multiple of fundamental, this frequency is called interharmonic frequency and component with such frequency is called interharmonic. See 5.1.7 for details.

3.8.1 Meter

By entering HARMONICS option from Measurements submenu the tabular HARMONICS (METER) screen is shown (see figure below). In this screens voltage and current harmonics or interharmonics and THD are shown.

Figure 3.30: Harmonics and interharmonics (METER) screens

Description of symbols and abbreviations used in METER screens are shown in table below.

Table 3.22: Instrument screen symbols and abbreviations

Table 3.23: Keys in Harmonics / interharmonics (METER) screens

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MI 2883 Energy Master Operating the instrument

VIEW

Switches view between Harmonics and Interharmonics. Switches units between:

 RMS (Volts ,Amperes)  % of fundamental harmonic

Keys in VIEW window:

Selects option. Confirms selected option.

Exits selection window without change.

Selects between single phase, neutral, all-phases and line harmonics / interharmonics view.

1 2 3 N 

Shows harmonics / interharmonics components for phase L1.

1 2 3 N 

Shows harmonics / interharmonics components for phase L2.

1 2 3 N 

Shows harmonics / interharmonics components for phase L3.

1 2 3 N 

Shows harmonics / interharmonics components for neutral channel.

1 2 3 N 

Shows harmonics / interharmonics components for all phases on single screen.

12 23 31 Δ

Shows harmonics / interharmonics components for phase L12.

12 23 31 Δ

Shows harmonics / interharmonics components for phase L23.

12 23 31 Δ

Shows harmonics / interharmonics components for phase L31.

12 23 31 Δ

Shows harmonics / interharmonics components for phase-tophase voltages.

METER

Switches to METER view.

BAR

Switches to BAR view.

AVG

Switches to AVG (average) view (available only during recording).

TREND

Switches to TREND view (available only during recording).

Shifts through harmonic / interharmonic components. Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

ENTER

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MI 2883 Energy Master Operating the instrument

Ux h01 … h50

Instantaneous voltage harmonic / interharmonic component in V

RMS

and in % of fundamental voltage

Ix h01 … h50

Instantaneous current harmonic / interharmonic component in A

RMS

and in % of fundamental current

Ux DC

Instantaneous DC voltage in V and in % of fundamental voltage

Ix DC

Instantaneous DC current in A and in % of fundamental current

Ux THD

Instantaneous total voltage harmonic distortion THDU in V and in % of fundamental voltage

Ix THD

Instantaneous total current harmonic distortion THDI in A

RMS

and in

% of fundamental current

HOLD

Holds measurement on display.

RUN

Runs held measurement.

VIEW

Switches view between harmonics and interharmonics.

Keys in VIEW window:

Selects option.

Confirms selected option.

Exits selection window without change.

ENTER

3.8.2 Histogram (Bar)

Bar screen displays dual bar graphs. The upper bar graph shows instantaneous voltage harmonics and the lower bar graph shows instantaneous current harmonics.

Figure 3.31: Harmonics histogram screen

Description of symbols and abbreviations used in BAR screens are shown in table below.

Table 3.24: Instrument screen symbols and abbreviations

Table 3.25: Keys in Harmonics / interharmonics (BAR) screens

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MI 2883 Energy Master Operating the instrument

Selects between single phases and neutral channel harmonics / interharmonics bars.

1 2 3 N

Shows harmonics / interharmonics components for phase L1.

1 2 3 N

Shows harmonics / interharmonics components for phase L2.

1 2 3 N

Shows harmonics / interharmonics components for phase L3.

1 2 3 N

Shows harmonics / interharmonics components for neutral channel.

12 23 31

Shows harmonics / interharmonics components for phase L12.

12 23 31

Shows harmonics / interharmonics components for phases L23.

12 23 31

Shows harmonics / interharmonics components for phases L31.

METER

Switches to METER view.

BAR

Switches to BAR view.

AVG

Switches to AVG (average) view (available only during recording).

TREND

Switches to TREND view (available only during recording).

Scales displayed histogram by amplitude.

Scrolls cursor to select single harmonic / interharmonic bar.

Toggles cursor between voltage and current histogram.

Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

ENTER

3.8.3 Harmonics Average Histogram (Avg Bar)

During active GENERAL RECORDER, Harmonics average histogram AVG view is available (see section 3.14 for instructions how to start GENERAL RECORDER). In this view average voltage and current harmonic values are shown (averaged from beginning of the recording to the current moment). Harmonics average histogram screen displays dual bar graphs. The upper bar graph shows average voltage harmonics and the lower bar graph shows average current harmonics.

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MI 2883 Energy Master Operating the instrument

Ux h01 … h50

Average voltage harmonic / interharmonic component in V

RMS

and in

% of fundamental voltage (from beginning of the recording)

Ix h01 … h50

Average current harmonic / interharmonic component in A

RMS

and in

% of fundamental current

Ux DC

Average DC voltage in V and in % of fundamental voltage

Ix DC

Average DC current in A and in % of fundamental current

Ux THD

Average total voltage harmonic distortion THDU in V and in % of fundamental voltage

Ix THD

Average total current harmonic distortion THDI in A

RMS

and in % of

fundamental current

VIEW

Switches view between harmonics and interharmonics.

Keys in VIEW window:

Selects option.

Confirms selected option.

Exits selection window without change.

Selects between single phases and neutral channel harmonics / interharmonics bars.

1 2 3 N

Shows harmonics / interharmonics components for phase L1.

1 2 3 N

Shows harmonics / interharmonics components for phase L2.

1 2 3 N

Shows harmonics / interharmonics components for phase L3.

1 2 3 N

Shows harmonics / interharmonics components for neutral

ENTER

Figure 3.32: Harmonics average histogram screen

Description of symbols and abbreviations used in AVG screens are shown in table below.

Table 3.26: Instrument screen symbols and abbreviations

Table 3.27: Keys in Harmonics / interharmonics (AVG) screens

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MI 2883 Energy Master Operating the instrument

channel.

12 23 31

Shows harmonics / interharmonics components for phase L12.

12 23 31

Shows harmonics / interharmonics components for phases L23.

12 23 31

Shows harmonics / interharmonics components for phases L31.

METER

Switches to METER view.

BAR

Switches to BAR view.

AVG

Switches to AVG (average) view (available only during recording).

TREND

Switches to TREND view (available only during recording).

Scales displayed histogram by amplitude.

Scrolls cursor to select single harmonic / interharmonic bar.

Toggles cursor between voltage and current histogram.

Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

ENTER

3.8.4 Trend

During active GENERAL RECORDER, TREND view is available (see section 3.14 for instructions how to start GENERAL RECORDER). Voltage and current harmonic / interharmonic components can be observed by cycling function key F4 (METER-BARAVG-TREND).

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MI 2883 Energy Master Operating the instrument

ThdU

Interval maximal ( ) and average ( ) value of total voltage harmonic distortion THDU for selected phase

ThdI

Interval maximal ( ) and average ( ) value of total current harmonic distortion THDI for selected phase

Udc

Interval maximal ( ) and average ( ) value of DC voltage component for selected phase

Idc Interval maximal ( ) and average ( )value of selected DC current component for selected phase

Uh01...Uh50 Uih01…Uih50

Interval maximal ( ) and average ( ) value for selected n-th voltage harmonic / interharmonic component for selected phase

Ih01…Ih50 Iih01…Ih50

Interval maximal ( ) and average ( )value of selected n-th current harmonic / interharmonic component for selected phase

VIEW

Switches between harmonics or interharmonics view. Switches measurement units between RMS V,A or % of

fundamental harmonic. Selects harmonic number for observing.

Keys in VIEW window:

Selects option. Confirms selected option.

Exits selection window without change.

ENTER

Figure 3.33: Harmonics and interharmonics trend screen

Table 3.28: Instrument screen symbols and abbreviations

Table 3.29: Keys in Harmonics / interharmonics (TREND) screens

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MI 2883 Energy Master Operating the instrument

Selects between single phases and neutral channel harmonics / interharmonics trends.

1 2 3 N

Shows selected harmonics / interharmonics components for phase L1.

1 2 3 N

Shows selected harmonics / interharmonics components for phase L2.

1 2 3 N

Shows selected harmonics / interharmonics components for phase L3.

1 2 3 N

Shows selected harmonics / interharmonics components for neutral channel.

12 23 31

Shows selected harmonics / interharmonics components for phase to phase voltage L12.

12 23 31

Shows selected harmonics / interharmonics components for phase to phase voltage L23.

12 23 31

Shows selected harmonics / interharmonics components for phase to phase voltage L31.

METER

Switches to METER view.

BAR

Switches to BAR view.

AVG

Switches to AVG (average) view (available only during recording).

TREND

Switches to TREND view (available only during recording).

Moves cursor and select time interval (IP) for observation. Returns to the “MEASUREMENTS” submenu.

3.9 Flickers

Flickers measure the human perception of the effect of amplitude modulation on the mains voltage powering a light bulb. In Flickers menu instrument shows measured flicker parameters. Results can be seen in a tabular (METER) or a graphical form (TREND) - which is active only while GENERAL RECORDER is active. See section

3.14 for instructions how to start recording. In order to understand meanings of particular parameter see section 5.1.8.

3.9.1 Meter

By entering FLICKERS option from MEASUREMENTS submenu the FLICKERS tabular screen is shown (see figure below).

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MI 2883 Energy Master Operating the instrument

Urms

True effective value U1, U2, U3, U12, U23, U31

Pinst,max

Maximal instantaneous flicker for each phase refreshed each 10 seconds

Pst(1min)

Short term (1 min) flicker P

st1min

for each phase measured in last minute

Pst

Short term (10 min) flicker Pst for each phase measured in last 10 minutes

Plt

Long term flicker (2h) Pst for each phase measured in last 2 hours

HOLD

Holds measurement on display. Hold clock time will be displayed in the right top corner.

RUN

Runs held measurement.

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

Figure 3.34: Flickers table screen

Description of symbols and abbreviations used in METER screen is shown in table below. Note that Flickers measurement intervals are synchronised to real time clock, and therefore refreshed on minute, 10 minutes and 2 hours intervals.

Table 3.30: Instrument screen symbols and abbreviations

Table 3.31: Keys in Flickers (METER) screen

3.9.2 Trend

During active recording TREND view is available (see section 3.14 for instructions how to start recording). Flicker parameters can be observed by cycling function key F4 (METER -TREND). Note that Flicker meter recording intervals are determinate by standard IEC 61000-4-15. Flicker meter therefore works independently from chosen recording interval in GENERAL RECORDER.

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MI 2883 Energy Master Operating the instrument

Pst1m1, Pst1m2,

Pst1m3, Pst1m12, Pst1m23,

Pst1m31

Maximal ( ), average ( ) and minimal ( ) value of 1-minute short term flicker P

st(1min)

for phase voltages U1, U2, U3 or line voltages

U12, U23, U31

Pst1, Pst2,

Pst3, Pst12, Pst23,

Pst31

Maximal ( ), average ( ) and minimal ( ) value of 10-minutes short term flicker P

for phase voltages U1, U2, U3 or line voltages

U12, U23, U31

Plt1, Plt2,

Plt3, Plt12, Plt23,

Plt31

Maximal ( ), average ( ) and minimal ( ) value of 2-hours long term flicker P

in phase voltages U1, U2, U3 or line voltages U12,

U23, U31

Figure 3.35: Flickers trend screen

Table 3.32: Instrument screen symbols and abbreviations

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MI 2883 Energy Master Operating the instrument

Selects between the following options:

Pst Plt Pstmin

Shows 10 min short term flicker Pst.

Pst Plt Pstmin

Shows long term flicker Plt.

Pst Plt Pstmin

Shows 1 min short term flicker P

st1min

Selects between trending various parameters:

1 2 3 

Shows selected flicker trends for phase L1.

1 2 3 

Shows selected flicker trends for phase L2.

1 2 3 

Shows selected flicker trends for phase L3.

1 2 3 

Shows selected flicker trends for all phases (average only).

12 23 31 Δ

Shows selected flicker trends for phases L12.

12 23 31 Δ

Shows selected flicker trends for phases L23.

12 23 31 Δ

Shows selected flicker trends for phases L31.

12 23 31 Δ

Shows selected flicker trends for all phases (average only).

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

Moves cursor and selects time interval (IP) for observation. Returns to the “MEASUREMENTS” submenu.

Table 3.33: Keys in Flickers (TREND) screens

3.10 Phase Diagram

Phase diagram graphically represent fundamental voltages, currents and phase angles of the network. This view is strongly recommended for checking instrument connection before measurement. Note that most measurement issues arise from wrongly connected instrument (see 4.1 for recommended measuring practice). On phase diagram screens instrument shows:

 Graphical presentation of voltage and current phase vectors of the measured

system,

 Unbalance of the measured system.

3.10.1 Phase diagram

By entering PHASE DIAGRAM option from MEASUREMENTS submenu, the following screen is shown (see figure below).

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MI 2883 Energy Master Operating the instrument

U1, U2, U3

Fundamental voltages Ufund1, Ufund2, Ufund3 with relative phase angle to Ufund

U12, U23, U31

Fundamental voltages Ufund12, Ufund23, Ufund31 with relative phase angle to Ufund

I1, I2, I3

Fundamental currents Ifund1, Ifund2, Ifund3 with relative phase angle to Ufund1 or Ufund12

HOLD

Holds measurement on display. Hold clock time will be displayed in the right top corner.

RUN

Runs held measurement.

U I I U

Selects voltage for scaling (with cursors). Selects current for scaling (with cursors).

METER

Switches to PHASE DIAGRAM view.

UNBAL.

Switches to UNBALANCE DIAGRAM view.

TREND

Switches to TREND view (available only during recording).

Scales voltage or current phasors. Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

Figure 3.36: Phase diagram screen

Table 3.34: Instrument screen symbols and abbreviations

Table 3.35: Keys in Phase diagram screen

3.10.2 Unbalance diagram

Unbalance diagram represents current and voltage unbalance of the measuring system. Unbalance arises when RMS values or phase angles between consecutive phases are not equal. Diagram is shown on figure below.

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MI 2883 Energy Master Operating the instrument

U0 I0

Zero sequence voltage component U

Zero sequence current component I

U+ I+

Positive sequence voltage component U

Positive sequence current component I

UI-

Negative sequence voltage component U

Negative sequence current component I

u- i-

Negative sequence voltage ratio u

Negative sequence current ratio i-

u0 i0

Zero sequence voltage ratio u

Zero sequence current ratio i0

HOLD

Holds measurement on display. Hold clock time will be displayed in the right top corner.

RUN

Runs held measurement.

U I

I U

Shows voltage unbalance measurement and selects voltage for scaling (with cursors)

Shows current unbalance measurement and selects current for scaling (with cursors)

METER

Switches to PHASE DIAGRAM view.

UNBAL.

Switches to UNBALANCE DIAGRAM view.

TREND

Switches to TREND view (available only during recording).

Scales voltage or current phasors. Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

Figure 3.37: Unbalance diagram screen

Table 3.36: Instrument screen symbols and abbreviations

Table 3.37: Keys in Unbalance diagram screens

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MI 2883 Energy Master Operating the instrument

u- Maximal ( ), average ( ) and minimal ( ) value of negative sequence voltage ratio u-

u0 Maximal ( ), average ( ) and minimal ( ) value of zero sequence voltage ratio u0

i- Maximal ( ), average ( ) and minimal ( ) value of negative sequence current ratio i-

Maximal ( ), average ( ) and minimal ( ) value of zero sequence current ratio i0

U+

Maximal ( ), average ( ) and minimal ( ) value of positive sequence voltage U+

U-

Maximal ( ), average ( ) and minimal ( ) value of negative sequence voltage U-

Maximal ( ), average ( ) and minimal ( ) value of zero sequence voltage U0

I+

Maximal ( ), average ( ) and minimal ( ) value of positive sequence current I+

I-

Maximal ( ), average ( ) and minimal ( ) value of negative sequence current I-

Maximal ( ), average ( ) and minimal ( ) value of zero sequence current I0

U+ U- U0 I+ I- I0 u+ u0 i+ i0

Shows selected voltage and current unbalance measurement (U+, U-, U0, I+, I-, I0, u-, u0, i-, i0).

METER

Switches to PHASE DIAGRAM view.

UNBAL.

Switches to UNBALANCE DIAGRAM view.

TREND

Switches to TREND view (available only during recording).

3.10.3 Unbalance trend

During active recording UNBALANCE TREND view is available (see section 3.14 for instructions how to start GENERAL RECORDER).

Figure 3.38: Symmetry trend screen

Table 3.38: Instrument screen symbols and abbreviations

Table 3.39: Keys in Unbalance trend screens

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Moves cursor and selects time interval (IP) for observation. Returns to the “MEASUREMENTS” submenu.

Current temperature in Celsius degrees

Current temperature in Fahrenheit degrees

HOLD

Holds measurement on display. Hold clock time will be displayed in the right top corner.

RUN

Runs held measurement.

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

3.11 Temperature

Energy Master instrument is capable of measuring and recording temperature with Temperature probe A 13541. Temperature is expressed in both units, Celsius and Fahrenheit degrees. See following sections for instructions how to start recording. In order to learn how to set up neutral clamp input with the temperature sensor, see section 4.2.4.

Optional accessory

3.11.1 Meter

Figure 3.39: Temperature meter screen

Table 3.40: Instrument screen symbols and abbreviations

Table 3.41: Keys in Temperature meter screen

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Maximal ( ), average ( ) and minimal ( ) temperature value for last recorded time interval (IP)

Shows temperature in Celsius degrees.

Shows temperature in Fahrenheit degrees.

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

Returns to the “MEASUREMENTS” submenu.

3.11.2 Trend

Temperature measurement TREND can be viewed during the recording in progress. Records containing temperature measurement can be viewed from Memory list and by using PC software PowerView v3.0.

Figure 3.40: Temperature trend screen

Table 3.42: Instrument screen symbols and abbreviations

Table 3.43: Keys in Temperature trend screens

3.12 Underdeviation and overdeviation

Underdeviation and overdeviation parameters are useful when it is important to avoid, for example, having sustained undervoltages being cancelled in data by sustained overvoltages. Results can be seen in a tabular (METER) or a graphical form (TREND) view - which is active only while GENERAL RECORDER is active. See section 3.14 for instructions how to start recording. In order to understand meanings of particular parameter see section 5.1.11.

3.12.1 Meter

By entering DEVIATION option from MEASUREMENTS submenu the UNDER/OVER DEVIATION tabular screen is shown (see figure below).

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Urms

True effective value U1, U2, U3, U12, U23, U31

Uunder

Instantaneous underdeviation voltage U

Under

expressed in voltage and %

of nominal voltage

Uover

Instantaneous overdeviation voltage U

Over

expressed in voltage and % of

nominal voltage

HOLD

Holds measurement on display. Hold clock time will be displayed in the right top corner.

RUN

Runs held measurement.

Selects between trending various parameters

 Δ

Shows under/over deviations measurements for all phase voltages

 Δ

Shows under/over deviations measurements for all phase to phase voltages

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

Figure 3.41: Underdeviation and overdeviation table screen

Description of symbols and abbreviations used in METER screen is shown in table below.

Table 3.44: Instrument screen symbols and abbreviations

Table 3.45: Keys in Underdeviation and overdeviation (METER) screen

3.12.2 Trend

During active recording TREND view is available (see section 3.14 for instructions how to start recording). Underdeviation and overdeviation parameters can be observed by cycling function key F4 (METER -TREND).

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Uunder1 Uunder2

Uunder3 Uunder12 Uunder22 Uunder31

Interval average ( ) value of corresponding underdeviation voltage

1Under

, U

2Under

, U

3Under

, U

12Under

, U

23Under

, U

31Under

, expressed in % of

nominal voltage.

Uover1 Uover2

Uover3 Uover12 Uover23 Uover31

Interval average ( ) value of corresponding overdeviation voltage

1Over

, U

2Over

, U

3Over

, U

12Over

, U

23Over

, U

31Over

, expressed in % of

nominal voltage. Selects between the following options:

Under Over

Shows underdeviation trends

Under Over

Shows overdeviation trends

Selects between trending various parameters:

 Δ

Shows trends for all phase under/over deviations

 Δ

Shows trends for all lines under/over deviations

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

Moves cursor and selects time interval (IP) for observation. Returns to the “MEASUREMENTS” submenu.

Figure 3.42: Underdeviation and overdeviation TREND screen

Table 3.46: Instrument screen symbols and abbreviations

Table 3.47: Keys in Underdeviation and Overdeviation (TREND) screens

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Sig1

316.0 Hz

True effective value signal voltage (U

Sig1

, U

Sig2

, U

Sig3

, U

Sig12

, U

Sig23

Sig31

) for a user-specified carrier frequency (316.0 Hz in shown

example) expressed in Volts or percent of fundamental voltage

Sig2

1060.0 Hz

True effective value signal voltage (U

Sig1

, U

Sig2

, U

Sig3

, U

Sig12

, U

Sig23

Sig31

) for a user-specified carrier frequency (1060.0 Hz in shown

example) expressed in Volts or percent of fundamental voltage

RMS

True effective value of phase or phase to phase voltage U

Rms (U1

, U2,

U3, U12, U23, U31)

HOLD

Holds measurement on display. Hold clock time will be displayed in the right top corner.

3.13 Signalling

Mains signalling voltage, called “ripple control signal” in certain applications, is a burst of

signals, often applied at a non-harmonic frequency, that remotely control industrial equipment, revenue meters, and other devices. Before observing signalling measurements, user should set-up signalling frequencies in signalling setup menu (see section 3.19.4).

Results can be seen in a tabular (METER) or a graphical form (TREND) - which is active only while GENERAL RECORDER is active. See section 3.14 for instructions how to start recording. In order to understand meanings of particular parameter see section 5.1.8.

3.13.1 Meter

By entering SIGNALLING option from MEASUREMENTS submenu the SIGNALLING tabular screen is shown (see figure below).

Figure 3.43: Signalling meter screen

Description of symbols and abbreviations used in METER screen is shown in table below.

Table 3.48: Instrument screen symbols and abbreviations

Table 3.49: Keys in Signalling (METER) screen

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RUN

Runs held measurement.

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

TABLE

Switches to TABLE view (available only during recording).

Triggers Waveform snapshot.

Returns to the “MEASUREMENTS” submenu.

Usig1, Usig2, Usig3,

Usig12, Usig23, Usig31

Maximal ( ), average ( ) and minimal ( ) value of (U

Sig1

Sig2

, U

Sig3

, U

Sig12

, U

Sig23

, U

Sig31

) signal voltage for a user-

specified Sig1/Sig2 frequency (Sig1 = 316.0 Hz / Sig2 =

1060.0 Hz in shown example).

14.Nov.2013

13:50:00

Timestamp of interval (IP) selected by cursor.

22h 25m 00s

Current GENERAL RECORDER time (Days hours:min:sec)

Selects between the following options:

f1 f2

Shows signal voltage for a user-specified signalling frequency (Sig1).

f1 f2

Shows signal voltage for a user-specified signalling frequency (Sig2).

Selects between trending various parameters:

1 2 3 

Shows signalling for phase 1

3.13.2 Trend

During active recording TREND view is available (see section 3.14 for instructions how to start recording). Signalling parameters can be observed by cycling function key F4 (METER -TREND).

Figure 3.44: Signalling trend screen

Table 3.50: Instrument screen symbols and abbreviations

Table 3.51: Keys in Signalling (TREND) screen

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1 2 3 

Shows signalling for phase 2

1 2 3 

Shows signalling for phase 3

1 2 3 

Shows signalling for all phases (average only)

12 23 31 Δ

Shows signalling for phase to phase voltage L12.

12 23 31 Δ

Shows signalling for phase to phase voltage L23.

12 23 31 Δ

Shows signalling for phase to phase voltage L31.

12 23 31 Δ

Shows signalling for all phase to phase voltages (average only).

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

TABLE

Switches to TABLE view (available only during recording).

Moves cursor and select time interval (IP) for observation. Returns to the “MEASUREMENTS” submenu.

Signalling event number

Phases on which signalling event occurred

Flag indication

 0 – none of intervals are flagged  1 – at least one of intervals inside recorded

signalling is flagged

Sig

Frequency on which signalling occurred, defined as “Sign. 1” frequency (f1) and “Sign. 2” frequency (f2) in

3.13.3 Table

During active recording TABLE view is available (see section 3.14 for instructions how to start recording), by cycling function key F4 (METER –TREND - TABLE). Signalling events can be here observed as required by standard IEC 61000-4-30. For each signalling event instrument capture waveform which can be observed in PowerView.

Figure 3.45: Signalling table screen

Table 3.52: Instrument screen symbols and abbreviations

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SIGNALLING SETUP menu. See 3.19.4 for details.

START

Time when observed Signalling voltage crosses threshold boundary.

MAX

Maximal voltage level recorder captured during signalling events

Level

Threshold level in % of nominal voltage Un, defined in SIGNALLING SETUP menu. See 3.19.4 for details.

Duration

Duration of captured waveform, defined in SIGNALLING SETUP menu. See 3.19.4 for details.

1st observed signalling frequency.

2nd observed signalling frequency.

METER

Switches to METER view.

TREND

Switches to TREND view (available only during recording).

TABLE

Switches to TABLE view (available only during recording).

Moves cursor through signalling table. Returns to the “MEASUREMENTS” submenu.

General recorder is active, waiting for start condition to be met. After start conditions are met (defined start time), instrument will capture waveform snapshot and start

Table 3.53: Keys in Signalling (TABLE) screen

3.14 General Recorder

Energy Master has ability to record measured data in the background. By entering GENERAL RECORDER option from RECORDERS submenu, recorder parameters can be customized in order to meet criteria about interval, start time and duration for the recording campaign. General recorder setup screen is shown below:

Figure 3.46: General recorder setup screen

Description of General recorder settings is given in the following table:

Table 3.54: General recorder settings description and screen symbols

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(activate) General recorder.

General recorder is active, recording in progress Note: Recorder will run until one of the following end conditions is met:

 STOP key was pressed by user  Given Duration criteria was met  Maximal record length was reached  SD CARD is full

Note: If recorder start time is not explicitly given, recorder start depends on Real Time clock multiple of interval. For example: recorder is activated at 12:12 with 5 minute interval. Recorder will actually start at 12:15. Note: If during record session instrument batteries are drained, due to long interruption for example, instrument will shut down automatically. After power restauration, it will automatically start new recording session.

Interval

Select General recorder aggregation interval. The smaller the interval is, more measurements will be used for the same record duration.

Include events

Select whether events are included in the record.

 On: Record events signatures in table form (see

3.15 for details)

 Off: Events are not recorded

Include alarms

Select whether alarms are included in the record.

 On: Record alarm signatures in table form (see

3.16 for details)

 Off: Alarms are not recorded

Include signalling

events

Select whether signalling events according to the IEC 61000-4-30 should be included in the record.

 On: Signalling events included in the record  Off: Signalling events are not recorded

Start time

Define start time of recording:

 Manual, pressing function key F1  At the given time and date.

Duration

Define recording duration. General recorder will record measurement for given time duration:

 Manual,  1, 6 or 12 hours, or  1, 2, 3, 7, 15, 30, 60 days.

Recommended/maximal

record duration:

Show recommended and maximal Duration parameter for giver recording Interval.

Available memory

Show SD card free space

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START

STOP

Starts the recorder. Stops the recorder.

CONFIG

Shortcut to Connection setup. See 4.2 for details.

CHECK C.

Check connection settings. See 3.19.1 for details.

Enters recorder starting date/time setup.

Keys in Set start time window:

Selects parameter to be changed.

Modifies parameter.

Confirms selected option.

Exits Set start time window without modifications.

Selects parameter to be changed.

Modifies parameter. Returns to the “RECORDERS” submenu.

ENTER

Table 3.55: Keys in General recorder setup screen

3.15 Events table

In this table captured voltage dips, swells and interrupts are shown. Note that events appear in the table after finishing, when voltage return to the normal value. All events can be grouped according to IEC 61000-4-30. Additionally for troubleshooting purposes events can be separated by phase. This is toggled by pressing function key F1.

Group view 

In this view voltage event are grouped according to IEC 61000-4-30 (see section 5.1.11 for details). Table where events are summarized is shown below. Each line in table represents one event, described by event number, event start time, duration and level. Additionally in colon “T” event characteristics (Type) is shown (see table below for details).

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Date

Date when selected event has occurred

No.

Unified event number (ID)

Indicate phase or phase-to-phase voltage where event has occurred: 1 – event on phase U1 2 – event on phase U2 3 – event on phase U3 12 – event on voltage U12 23 – event on voltage U23 31 – event on voltage U31 Note: This indication is shown only in event details, since one grouped event can have many phase events.

Start

Event start time (when first U

Rms(1/2)

) value crosses threshold.

Indicates type of event or transition: D – Dip I – Interrupt S – Swell

Level

Minimal or maximal value in event U

Dip

, U

Int

, U

Swell

Duration

Event duration.

Figure 3.47: Voltage events in group view screen

By pressing “ENTER” on particular event we can examine event details. Event is split by phase events and sorted by start time.

Figure 3.48: Voltage event in detail view screen

Table 3.56: Instrument screen symbols and abbreviations

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 PH

Group view is shown. Press to switch on “PHASE” view.

 PH

Phase view is shown. Press to switch on “GROUP” view.

ALL INT

Shows all types of events (dips and swell). Interrupts are treated as special case of voltage dip event. START time and Duration in table is referenced to complete voltage event.

ALL INT

Shows poly-phase voltage interrupts only, according to the IEC 61000-4-30 requirements. START time and Duration in table is referenced to voltage interrupt only.

STAT

Shows event statistics (by phases).

EVENTS

Returns to “EVENTS” view.

Selects event.

Table 3.57: Keys in Events table group view screens

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Enters detail event view.

Returns to Events table group view screen. Returns to “RECORDERS” submenu.

Date

Date when selected event has occurred

No.

Unified event number (ID)

Start

Event start time (when first U

Rms(1/2)

) value crosses threshold.

Indicates type of event or transition: D – Dip I – Interrupt S – Swell

Level

Minimal or maximal value in event U

Dip

, U

Int

, U

Swell

Duration

Event duration.

ENTER

Phase view

In this view voltage events are separated by phases. This is convenient view for troubleshooting. Additionally user can use filters in order to observe only particular type of event on a specific phase. Captured events are shown in a table, where each line contains one phase event. Each event has an event number, event start time, duration and level. Additionally in colon “T” type of event is shown (see table below for details).

Figure 3.49: Voltage events screens

You can also see details of each individual voltage event and statistics of all events. Statistics show count registers for each individual event type by phase.

Table 3.58: Instrument screen symbols and abbreviations

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 PH

Group view is shown. Press to switch on “PHASE” view.

 PH

Phase view is shown. Press to switch on “GROUP”

view.

Filters events by type:

 DIP INT SWELL

Shows all event types.

 DIP INT SWELL

Shows dips only.

 DIP INT SWELL

Shows interrupts only.

 DIP INT SWELL

Shows swells only.

Filters events by phase:

1 2 3 T

Shows only events on phase L1.

1 2 3 T

Shows only events on phase L2.

1 2 3 T

Shows only events on phase L3.

1 2 3 T

Shows events on all phases.

12 23 31 T

Shows only events on phases L12.

12 23 31 T

Shows only events on phases L23.

12 23 31 T

Shows only events on phases L31.

12 23 31 T

Shows events on all phases.

STAT

Shows event summary (by types and phases).

EVENTS

Returns to EVENTS view.

Selects event. Enters detail event view.

Returns to Events table phase view screen. Returns to the “RECORDERS” submenu.

ENTER

Table 3.59: Keys in Events table phase view screens

3.16 Alarms table

This screen shows list of alarms which went off. Alarms are displayed in a table, where each row represents an alarm. Each alarm is associated with a start time, phase, type, slope, min/max value and duration (see 3.19.3 for alarm setup and 5.1.13 for alarm measurement details).

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Date

Date when selected alarm has occurred

Start

Selected alarm start time (when first U

Rms

value cross threshold)

Indicate phase or phase-to-phase voltage where event has occurred: 1 – alarm on phase L1 2 – alarm on phase L2 3 – alarm on phase L3 12 – alarm on line L12 23 – alarm on line L23 31 – alarm on line L31

Slope

Indicates alarms transition:

 Rise – parameter has over-crossed threshold  Fall – parameter has under-crossed threshold

Min/Max

Minimal or maximal parameter value during alarm occurrence

Duration

Alarm duration.

Filters alarms according to the following parameters:

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

All alarms.

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Voltage alarms.

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Combined power alarms.

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Fundamental power alarms.

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Nonfundamental power alarms.

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Flicker alarms.

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Unbalance alarms.

Figure 3.50: Alarms list screen

Table 3.60: Instrument screen symbols and abbreviations

Table 3.61: Keys in Alarms table screens

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 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Harmonics alarms.

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Interharmonics alarms.

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Signalling alarms.

 UIF C. Pwr F. Pwr NF. Pwr

Flick Sym H iH Sig Temp

Temperature alarms.

Filters alarms according to phase on which they occurred:

1 2 3 N 12 23 31 T 

Shows only alarms on phase L1.

1 2 3 N 12 23 31 T 

Shows only alarms on phase L2.

1 2 3 N 12 23 31 T 

Shows only alarms on phase L3.

1 2 3 N 12 23 31 T 

Shows only alarms on neutral channel.

1 2 3 N 12 23 31 T 

Shows only alarms on phases L12.

1 2 3 N 12 23 31 T 

Shows only alarms on phases L23.

1 2 3 N 12 23 31 T 

Shows only alarms on phases L31.

1 2 3 N 12 23 31 T 

Shows only alarms on channels which are not channel dependent

1 2 3 N 12 23 31 T 

Shows all alarms.

Selects an alarm. Returns to the “RECORDERS” submenu.

3.17 Rapid voltage changes (RVC) table

In this table captured RVC events are shown. Events appear in the table after finish, when voltage is in the steady state. RVC events are measured and represented according to IEC 61000-4-30. See 5.1.14 for details.

Figure 3.51: RVC Events table group view screen

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No.

Unified event number (ID)

Event start time (when first U

Rms(1/2)

) value crosses threshold.

Duration

Event duration.

dMax

∆Umax - maximum absolute difference between any of the U

Rms(1/2)

values during the RVC event and the final arithmetic mean 100/120

Rms(1/2)

value just prior to the RVC event.

dUss

∆Uss - is the absolute difference between the final arithmetic mean 100/120 U

Rms(1/2)

value just prior to the RVC event and the first arithmetic

mean 100/120 U

Rms(1/2)

value after the RVC event.

STAT

Shows event statistics (phase by phase).

RVC

Returns to RVC Events table group view screen.

Selects RVC Event.

Returns to RVC Events table group view screen. Returns to “RECORDERS” submenu.

Table 3.62: Instrument screen symbols and abbreviations

Table 3.63: Keys in RVC Events table group view screens

3.18 Memory List

Using this menu user can view and browse saved records. By entering this menu, information about records is shown.

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Record No

Selected record number, for which details are shown / Number of all records.

FILE NAME

Record name on SD Card. By convention file names are created by following rules: Rxxxxyyy.REC, where:

 xxxx if record number 0000 ÷ 9999  yyy represent record type

o SNP – waveform snapshot o GEN – general record. General record generates also

AVG, EVT, PAR, ALM, SEL files, which can be found on SD Card and are imported into PowerView.

Type

Indicates type of record, which can be one of following:

 Snapshot,  General record.

Interval

General record recording interval (integration period)

Duration

Record duration

Start

General record start time.

End

General record stop time.

Size

Record size in kilobytes (kB) or megabytes (MB).

VIEW

Views details of currently selected record.

CLEAR

Clears selected record.

USB STICK

Enable USB memory stick support.

COPY

Copy current record to USB memory stick.

CLR ALL

Opens confirmation window for clearing all saved records.

Keys in confirmation window: Selects YES or NO.

Figure 3.52: Memory list screen

Table 3.64: Instrument screen symbols and abbreviations

Table 3.65: Keys in Memory list screen

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Confirms selection.

Exits confirmation window without clearing saved records.

Browses through records (next or previous record). Returns to the “RECORDERS” submenu.

Record No.

Selected record number, for which details are shown.

FILE NAME

Record name on SD Card

Type

Indicate type of record: General record.

Interval

General record recording interval (integration period)

Start

General record start time.

End

General record stop time.

Size

Record size in kilobytes (kB) or megabytes (MB).

VIEW

Switches to the CHANNELS SETUP menu screen.

Particular signal groups can be observed by pressing on F1 key (VIEW).

ENTER

3.18.1 General Record

This type of record is made by GENERAL RECORDER. Record front page is similar to the GENERAL RECORDER setup screen, as shown on figure below.

Figure 3.53: Front page of General record in MEMORY LIST menu

Table 3.66: Recorder settings description

Table 3.67: Keys in General record front page screen

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Keys in CHANNELS SETUP menu screen:

Selects particular signal group.

Enters particular signal group (TREND view).

Exits to MEMORY LIST menu.

CLEAR

Clears the last record. In order to clear complete memory, delete records one by one.

CLR ALL

Opens confirmation window for clearing all saved records.

Keys in confirmation window:

Selects YES or NO.

Confirms selection.

Exits confirmation window without clearing saved records.

Browses through records (next or previous record).

Selects parameter (only in CHANNELS SETUP menu). Returns to the “RECORDERS” submenu.

ENTER

By pressing VIEW, in CHANNELS SETUP menu, TREND graph of selected channel group will appear on the screen. Typical screen is shown on figure below.

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Memory list recall. Shown screen is recalled from memory.

Indicates position of the cursor at the graph.

U1, U2, U3:

Maximal ( ), average ( ) and minimal ( ) recorded value of phase voltage U

1Rms

, U

2Rms

, U

3Rms,

for time interval selected by cursor.

U12, U23,

U31:

Maximal ( ), average ( ) and minimal ( ) recorded value of phase-tophase voltage U

12Rms

, U

23Rms

, U

31Rms

for time interval selected by

cursor.

Ip:

Maximal ( ), average ( ) and minimal ( ) recorded value of current I

1Rms

, I

2Rms

, I

3Rms

, I

NRms

, for time interval selected by cursor.

38m 00s

Time position of cursor regarding to the record start time.

10.May.2013 12:08:50

Time clock at cursor position. Selects between the following options:

U I f U,I U/I

Shows voltage trend.

U I f U,I U/I

Shows current trend.

U I f U,I U/I

Shows frequency trend.

U I f U,I U/I

Shows voltage and current trends (single mode).

U I f U,I U/I

Shows voltage and current trends (dual mode).

Selects between phase, neutral, all-phases and view:

1 2 3 N 

Shows trend for phase L1.

1 2 3 N 

Shows trend for phase L2.

1 2 3 N 

Shows trend for phase L3.

1 2 3 N 

Shows trend for neutral channel.

1 2 3 N 

Shows all phases trends.

12 23 31 Δ

Shows trend for phases L12.

12 23 31 Δ

Shows trend for phases L23.

Figure 3.54: Viewing recorder U,I,f TREND data

Table 3.68: Instrument screen symbols and abbreviations

Table 3.69: Keys in Viewing recorder U,I,f TREND screens

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12 23 31 Δ

Shows trend for phases L31.

12 23 31 Δ

Shows all phase to phase trends.

Moves cursor and select time interval (IP) for observation. Returns to the “CHANNELS SETUP” menu screen.

Record No.

Selected record number, for which details are shown.

FILE NAME

Record name on SD Card

Type

Indicate type of record:

 Snapshot.

Start

Record start time.

Size

Record size in kilobytes (kB).

VIEW

Switches to CHANNELS SETUP menu screen.

Particular signal group can be observed by pressing on F1 key (VIEW).

Note: Other recorded data (power, harmonics, etc.) has similar manipulation principle as described in previous sections of this manual.

3.18.2 Waveform snapshot

This type of record can be made by using key (press and hold key).

Figure 3.55: Front page of Snapshot in MEMORY LIST menu

Table 3.70: Recorder settings description

Table 3.71: Keys in Snapshot record front page screen

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Keys in CHANNELS SETUP menu screen:

Selects particular signal group.

Enters particular signal group (METER or SCOPE view).

Exits to MEMORY LIST menu.

CLEAR

Clears the last record. In order to clear complete memory, delete records one by one.

CLR ALL

Opens confirmation window for clearing all saved records. Keys in confirmation window:

Selects YES or NO.

Confirms selection.

Exits confirmation window without clearing saved records.

Browses through records (next or previous record). Returns to the “RECORDERS” submenu.

ENTER

By pressing VIEW in CHANNELS SETUP menu METER screen will appear. Typical screen is shown on figure below.

Figure 3.56: U,I,f meter screen in recalled snapshot record

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Connection setup

Setup measurement parameters.

Event setup

Setup event parameters.

Alarm setup

Setup alarm parameters.

Signalling setup

Setup signalling parameters.

RVC setup

Setup “Rapid voltage changes” (RVC) parameters.

Selects option from the “MEASUREMENT SETUP” submenu.

Enters the selected option.

Returns to the “MAIN MENU” screen.

ENTER

Note: For more details regarding manipulation and data observing see previous

sections of this manual. Note: WAVEFORM SNAPSHOT is automatically created at the start of GENERAL RECORDER.

3.19 Measurement Setup submenu

From the “MEASUREMENT SETUP” submenu measurement parameters can be reviewed, configured and saved.

Figure 3.57: MEASUREMENT SETUP submenu

Table 3.72: Description of Measurement setup options

Table 3.73: Keys in Measurement setup submenu screen

3.19.1 Connection setup

In this menu user can setup connection parameters, such as nominal voltage, frequency, etc. After all parameters are provided, instrument will check if given parameters complies with measurements. In case of incompatibility instrument will show Connection check warning ( ) before leaving menu.

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Nominal voltage

Set nominal voltage. Select voltage according to the network voltage. If voltage is measured over potential transformer then press ENTER for setting transformer parameters:

Voltage ratio: Potential transformer ratio Δ  :

Transformer type

Additional transformer ratio

Primary

Secondary

Symbol

Delta

Star

√

⁄

Star

Delta

√

Star

Star 1

Delta

Delta 1

Note: Instrument can always measure accurately at up to 150% of selected nominal voltage.

Phase Curr. Clamps Neutral Curr. Clamps

Selects phase clamps for phase current measurements.

Figure 3.58: “CONNECTION SETUP” screen

Table 3.74: Description of Connection setup

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Note: For Smart clamps (A 1227, A 1281) always select “Smart clamps”.

Note: Use “None" option for voltage measurements

only. Note: See section 4.2.3 for details regarding further

clamps settings.

Connection

Method of connecting the instrument to multi-phase systems (see 4.2.1 for details).

 1W: 1-phase 3-wire system;

 2W: 2-phase 4-wire system;

 3W: 3-phase 3-wire system;

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 4W: 3-phase 4-wire system;

 OpenD: 3-phase 2 -wire (Open Delta) system.

Synchronization

Synchronization channel. This channel is used for instrument synchronization to the network frequency. Also a frequency measurement is performed on that channel. Depending on Connection user can select:

 1W, 2W, 4W: U1 or I1.  3W, OpenD: U12, or I1.

System frequency

Select system frequency. According to this setting 10 or 12 cycle interval will be used for calculus (according to IEC 61000-4-30):

 50 Hz – 10 cycle interval  60 Hz – 12 cycle interval

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Connection check

Check if measurement results comply with given limits. Measurement will be marked with OK sign ( ) if measurement results are within following limits:

Voltage: 90% ÷ 110% of nominal voltage

Current: 10% ÷ 110% of nominal current (Current clamp

range) Frequency: 42.5 ÷ 57.5 Hz for 50Hz and 51 ÷ 69 Hz for

60Hz system frequency U-I Phase angle: ±900 Voltage and current sequence: 1 – 2 – 3 Each measurement, which is not within those limits, will

be market with Fail sign ( ).

Default parameters

Set factory default parameters. These are: Nominal voltage: 230V (L-N); Voltage ratio: 1:1;

Δ  : 1 Phase current clamps: Smart Clamps; Neutral current clamps: None; Connection: 4W; Synchronization: U1 System frequency: 50 Hz. Dip voltage: 90 % U

Nom

Dip hysteresis: 2 % U

Nom

Interrupt voltage: 5 % U

Nom

Interrupt hysteresis: 2 % U

Nom

Swell voltage: 110 % U

Nom

Swell hysteresis: 2 % U

Nom

Signalling frequency1: 316 Hz Signalling frequency2:1060 Hz Signalling record duration: 10 sec Signalling threshold: 5 % of nominal voltage RVC threshold: 3 % of nominal voltage RVC hysteresis: 25 % of RVC threshold Clear Alarm setup table

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Selects Connection setup parameter to be modified.

Changes selected parameter value.

Enters into submenu. Confirms Factory reset.

Returns to the “MEASUREMENT SETUP” submenu.

Nominal voltage

Indication of type (L-N or L-L) and value of nominal voltage.

Swell Threshold

Set swell threshold value in % of nominal voltage.

Swell Hysteresis

Set swell hysteresis value in % of nominal voltage.

Dip Threshold

Set dip threshold value in % of nominal voltage.

Dip Hysteresis

Set dip hysteresis value in in % of nominal voltage.

Interrupt Threshold

Set interrupt threshold value in % of nominal voltage.

Interrupt Hysteresis

Set interrupt hysteresis in % of nominal voltage.

HELP

Shows help screens for Dip, Swell and Interrupt. See

5.1.12 for details.

ENTER

Table 3.75: Keys in Connection setup menu

3.19.2 Event setup

In this menu user can setup voltage events and their parameters. See 5.1.11 for further details regarding measurement methods. Captured events can be observed through EVENTS TABLE screen. See 3.15 and 5.1.11 for details.

Figure 3.59: Event setup screen

Table 3.76: Description of Event setup

Table 3.77: Keys in Event setup screen

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Keys in CHANNELS SETUP menu screen:

Previous help screen

Next help screen

Move between help screens.

Move back to EVENT SETUP screen

Selects Voltage events setup parameter to be modified.

Changes selected parameter value.

Returns to the “MEASUREMENT SETUP” submenu.

ENTER

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1st column Quantity (P+, Uh5, I, on figure above)

Select alarm from measurement group and then measurement itself.

2nd column Phase (TOT, L1, on figure above)

Select phases for alarms capturing

 L1 – alarms on phase L1;  L2 – alarms on phase L2;  L3 – alarms on phase L3;  LN – alarms on phase N;  L12 – alarms on line L12;  L23 – alarms on line L23;  L31 – alarm on line L31;  ALL – alarms on any phase;  TOT – alarms on power totals or non-phase

measurements (frequency, unbalance).

3rd column Condition ( “>” on figure above)

Select triggering method: < trigger when measured quantity is lower than threshold

(FALL); > trigger when measured quantity is higher than threshold

(RISE);

4th column Level

Threshold value.

5th column Duration

Minimal alarm duration. Triggers only if threshold is crossed for a defined period of time.

Note: It is recommended that for flicker measurement,

3.19.3 Alarm setup

Up to 10 different alarms, based on any measurement quantity which is measured by instrument, can be defined. See 5.1.13 for further details regarding measurement methods. Captured events can be observed through ALARMS TABLE screens. See

3.16 and 5.1.13 for details.

Figure 3.60: Alarm setup screens

Table 3.78: Description of Alarm setup

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recorder is set to 10 min.

ADD

Adds new alarm.

REMOVE

Clears selected or all alarms:

EDIT

Edits selected alarm.

Enters or exits a submenu to set an alarm.

Cursor keys. Selects parameter or changes value.

Confirms setting of an alarm. Returns to the “MEASUREMENT SETUP” submenu.

Nominal voltage

Indication of type (L-N or L-L) and value of nominal voltage.

SIGN. 1 FREQUENCY

1st observed signalling frequency.

SIGN. 2 FREQUENCY

2nd observed signalling frequency.

ENTER

Table 3.79: Keys in Alarm setup screens

3.19.4 Signalling setup

Mains signalling voltage, called “ripple control signal” in certain applications, is a burst of

signals, often applied at a non-harmonic frequency, that remotely control industrial equipment, revenue meters, and other devices. Two different signalling frequencies can be defined. Signals can be used as a source for the user defined alarm and can also be included in recording. See section 3.19.3 for details how to set-up alarms. See section 3.14 for instructions how to start recording.

Figure 3.61: Signalling setup screen

Table 3.80: Description of Signalling setup

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DURATION

Duration of RMS record, which will be captured after treshold value is reached.

THRESHOLD

Threshold value expressed in % of nominal voltage, which will trigger recording of signalling event.

Enters or exits a submenu to set signalling frequency.

Toggles between given parameters.

Changes selected parameter. Returns to the “MEASUREMENT SETUP” submenu.

Nominal voltage

Indication of type (L-N or L-L) and value of nominal voltage.

RVC THRESHOLD

RVC threshold value expressed in % of nominal voltage for steady state voltage detection.

RVC HYSTERESIS

RVC hysteresis value expressed in % of RVC threshold.

Toggles between given parameters.

ENTER

Table 3.81: Keys in Signalling setup screen

3.19.5 Rapid voltage changes (RVC) setup

RVC is a quick transition in RMS voltage occurring between two steady-state conditions, and during which the RMS voltage does not exceed the dip/swell thresholds. An voltage is in a steady-state condition if all the immediately preceding 100/120 U

Rms(½)

values remain within an set RVC threshold from the arithmetic mean of those 100/120

set by the user according to the application, as a percentage of U

(100 values for 50 Hz nominal and 120 values for 60 Hz). The RVC threshold is

Rms(½)

, within 1 ÷ 6 %.

Nom

See section 5.1.14 for details regarding RVC measurement. See section 3.14 for instructions how to start recording.

Figure 3.62: RVC setup screen

Table 3.82: Description of RVC setup

Table 3.83: Keys in RVC setup screen

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Changes selected parameter. Returns to the “MEASUREMENT SETUP” submenu.

Time & Date

Set time, date and time zone.

Language

Select language.

Instrument info

Information about the instrument.

Lock/Unlock

Lock instrument to prevent unauthorized access.

Colour Model

Select colours for displaying phase measurements.

Selects option from the “GENERAL SETUP” submenu. Enters the selected option.

Returns to the “MAIN MENU” screen.

ENTER

3.20 General Setup submenu

From the “GENERAL SETUP” submenu communication parameters, real clock time, language can be reviewed, configured and saved.

Figure 3.63: GENERAL SETUP submenu

Table 3.84: Description of General setup options

Table 3.85: Keys in General setup submenu

3.20.1 Time & Date

Time, date and time zone can be set in this menu.

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Clock source

Show clock source: RTC – internal real time clock

Time zone

Selects time zone.

Current Time & Date

Show/edit current time and date

Selects parameter to be changed.

Modifies parameter. Selects between the following parameters: hour, minute, second, day, month or year.

Enters Date/time edit window.

Returns to the “GENERAL SETUP” submenu.

ENTER

3.20.2 Time & Date

Figure 3.64: Set date/time screen

Table 3.86: Description of Set date/time screen

Table 3.87: Keys in Set date/time screen

3.20.3 Language

Different languages can be selected in this menu.

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Selects language.

Confirms the selected language.

Returns to the “GENERAL SETUP” submenu.

ENTER

Figure 3.65: Language setup screen

Table 3.88: Keys in Language setup screen

3.20.4 Instrument info

Basic information concerning the instrument (company, user data, serial number, firmware version and hardware version) can be viewed in this menu.

Figure 3.66: Instrument info screen

Table 3.89: Keys in Instrument info screen

3.20.5 Lock/Unlock

Energy Master has the ability to prevent unauthorized access to all important instrument functionality by simply locking the instrument. If instrument is left for a longer period at an unsupervised measurement spot, it is recommended to prevent unintentional stopping of record, instrument or measurement setup modifications, etc. Although

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Four digit numeric code used for Locking/Unlocking the instrument.

Press ENTER key for changing the Pin code. “Enter PIN”

window will appear on screen.

Note: Pin code is hidden (****), if the instrument is locked.

Lock

The following options for locking the instrument are available:

 Disabled  Enabled

Selects parameter to be modified. Change value of the selected digit in Enter pin window.

Selects digit in Enter pin window. Locks the instrument. Opens Enter pin window for unlocking.

Opens Enter pin window for pin modification. Accepts new pin. Unlocks the instrument (if pin code is correct).

Returns to the “GENERAL SETUP” submenu.

MEASUREMENTS

Allowed access. Waveform snapshot functionality is blocked.

RECORDERS

No access.

MEASUREMENT SETUP

No access.

ENTER

instrument lock prevents unauthorized changing of instrument working mode, it does not prevent non-destructive operations as displaying current measurement values or trends. User locks the instrument by entering secret lock code in the Lock/Unlock screen.

Figure 3.67: Lock/Unlock screen

Table 3.90: Description of Lock/Unlock screen

Table 3.91: Keys in Lock/Unlock screen

Following table shows how locking impacts instrument functionality.

Table 3.92: Locked instrument functionality

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GENERAL SETUP

No access except to Lock/Unlock menu.

EDIT

Opens edit colour screen (only available in custom model).

Figure 3.68: Locked instrument screen

Note: In case user forget unlock code, general unlock code “7350” can be used to unlock the instrument.

3.20.6 Colour model

In COLOUR MODEL menu, user can change colour representation of phase voltages and currents, according to the customer needs. There are some predefined colour schemes (EU, USA, etc.) and a custom mode where user can set up its own colour model.

Figure 3.69: Colour representation of phase voltages

Table 3.93: Keys in Colour model screens

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Keys in Edit colour screen:

L1 L2 L3 N

Shows selected colour for phase L1.

L1 L2 L3 N

Shows selected colour for phase L2.

L1 L2 L3 N

Shows selected colour for phase L3.

L1 L2 L3 N

Shows selected colour for neutral channel N.

Selects colour.

Returns to the “COLOUR MODEL” screen.

Selects Colour scheme.

Confirms selection of Colour scheme and returns to the “GENERAL

SETUP” submenu. Returns to the “GENERAL SETUP” submenu without modifications.

ENTER

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MI 2883 Energy Master Recording Practice and Instrument Connection

4 Recording Practice and Instrument

Connection

In following section recommended measurement and recording practice is described.

4.1 Measurement campaign

Power quality measurements are specific type of measurements, which can last many days, and mostly they are performed only once. Usually recording campaign is performed to:

 Statistically analyse some points in the network.  Troubleshoot malfunctioning device or machine.

Since measurements are mostly performed only once, it is very important to properly set measuring equipment. Measuring with wrong settings can lead to false or useless measurement results. Therefore instrument and user should be fully prepared before measurement begins. In this section recommended recorder procedure is shown. We recommend to strictly follow guidelines in order to avoid common problems and measurement mistakes. Figure below shortly summarizes recommended measurement practice. Each step is then described in details.

Note: PC software PowerView v3.0 has the ability to correct (after measurement is done):

 wrong real-time settings,  wrong current and voltage scaling factors.

False instrument connection (messed wiring, opposite clamp direction), can’t be fixed

afterwards.

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MI 2883 Energy Master Recording Practice and Instrument Connection

 Time & Date setup  Recharge batteries  Clear memory

Step 1:

Instrument Setup

Step 2:

Measurement Setup

 Nominal voltage  Transf. voltage ratio

Step 2.2:

Voltage range & ratio

 Phase diagram  U,I,f meter screen  Power meter screen

Step 3:

Inspection

 Clamp type  Clamp range

Step 2.3:

Clamps setup

 Conn.Type(4W,3W,1W)  Sync channel:U1 | I1 | U12  Freqency: 50 Hz | 60 Hz

Step 2.1:

Sync. & wiring

 Preform measuremement  Save waveform snapshoots

Step 4:

On Line Measurement

Prepare instrument for new measurement, before going to measuring site. Check:

 Is it time and date correct?  Are batteries in good condition?  Is it Memory List empty? If it is not,

download all data from previous measurements and release storage for new measurement.

Setup Power Master according to the measurement point nominal voltage, currents, load type. Optionally enable events or alarms and define parameter thresholds.

Double check Measurement setup using Phase diagram, and various scope and metering screens Using power metering check if power is flowing in right direction (power should be positive for load and negative for generator measurements)

 Nominal voltage  Thresholds

Step 2.4:

Event Setup

 Define alarm and

its parameters

Step 2.5:

Alarm Setup

 Select recording start

time and interval

 Include alarms and

events into recorder

 Start waveform recorder

Step 5:

Recorder setup

Recording in progress

 Download data  Analyse data  Create report  Export to Excel or Word

Step 7:

Report generation (PowerView v3.0)

Start

In Office

On Measuring siteIn office

 Stop recorder  Power off instrument  Remove wiring  Analyze recorderd data with

instrument (Memory List, Event and Alarm tables)

Step 6:

Measurement conclusion

 Sig. Freq. 1  Sig. Freq. 2

Step 2.6:

Signalling Setup

Figure 4.1: Recommended measurement practice

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MI 2883 Energy Master Recording Practice and Instrument Connection

Step 1: Instrument setup

On site measurements can be very stressful, and therefore it is good practice to prepare measurement equipment in an office. Preparation of Energy Master include following steps:

 Visually check instrument and accessories. Warning: Don’t use visually damaged equipment!

 Always use batteries that are in good condition and fully charge them before you

leave an office. Note: In problematic PQ environment where dips and interrupts frequently occurs instrument power supply fully depends on batteries! Keep your batteries in good condition.

 Download all previous records from instrument and clear the memory. (See

section 3.17 for instruction regarding memory clearing).

 Set instrument time and date. (See section 3.20.1 for instruction regarding time

and date settings).

Step 2: Measurement setup

Measurement setup adjustment is performed on measured site, after we find out details regarding nominal voltage, currents, type of wiring etc.

Step 2.1: Synchronization and wiring

 Connect current clamps and voltage tips to the “Device under measurement”

(See section 4.2 for details).

 Select proper type of connection in “Connection setup” menu (See section 3.19.1

for details).

 Select synchronization channel. Synchronization to voltage is recommended,

unless measurement is performed on highly distorted loads, such as PWM

drives. In that case current synchronization can be more appropriate. (See

section 3.19.1 for details).

 Select System frequency. System frequency is default mains system frequency.

Setting this parameter is recommended if to measure signalling or flickers.

Step 2.2: Nominal voltage and ratio

 Select instrument nominal voltage according to the network nominal voltage.

Note: For 4W and 1W measurement all voltages are specified as phase-toneutral (L-N). For 3W and Open Delta measurements all voltages are specifies as phase-to-phase (L-L). Note: Instrument assures proper measurement up to 150 % of chosen nominal voltage.

 In case of indirect voltage measurement, select appropriate “Voltage ratio”

parameters, according to transducer ratio. (See section 3.19.1 and 4.2.2 for

details).

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Step 2.3: Current clamps setup

 Using “Select Clamps” menu, select proper Phase and Neutral channel current

clamps (see sections 3.19.1 for details).

 Select proper clamps parameters according to the type of connection (see

section 4.2.3 for details).

Step 2.4: Event setup

Select threshold values for: swell, dip and interrupts (see sections 3.19.2 and 3.15 for details).

Step 2.5: Alarm setup

Use this step if you would like only to check if some quantities cross some predefined boundaries (see sections 3.16 and 3.19.3 for details).

Step 2.6: Signalling setup

Use this step only if you are interested in measuring mains signalling voltage. See section 3.19.4 for details.

Step 3: Inspection

After setup instrument and measurement is finished, user need to re-check if everything is connected and configured properly. Following steps are recommended:

 Using PHASE DIAGRAM menu check if voltage and current phase sequence is

right regarding to the system. Additionally check if current has right direction.

 Using U, I, f menu check if voltage and current have proper values.  Check voltage and current THD.

Note: Excessive THD can indicate that too small range was chosen! Note: In case of AD converter overvoltage or overloading current, icon will

be displayed.

 Using POWER menu check signs and indices of active, nonactive, apparrent

power and power factor.

If any of these steps give you suspicious measurement results, return to Step 2 and double check measurement setup parameters.

Step 4: On-line measurement

Instrument is now ready for measurement. Observe on line parameters of voltage, current, power, harmonics, etc. according to the measurement protocol or customer demands. Note: Use waveform snapshots to capture important measurement. Waveform snapshot capture all power quality signatures at once (voltage, current, power, harmonics, flickers).

Step 5: Recorder setup and recording

Using GENERAL RECORDER menu select type of recording and configure recording parameters such as:

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