Simpson Electric GIMA Instruction Manual

GIMA

Multi-Function Electricity Meter

OPERATOR’S MANUAL

SIMPSON ELECTRIC COMPANY

520 Simpson Avenue

Lac du Flambeau, WI 54538

715-588-3311 FAX: [phone]

Printed in U.S.A. Part No. 06-117285, Edition 2, 03/06

Visit us on the web at www.simpsonelectric.com

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About this manual

!

!

To the best of our knowledge and at the time written, the information contained in
this document is technically correct and the procedures accurate and adequate to
operate the instrument in compliance with its original advertised specifications.

Notes and Safety information

This Operator’s Manual contains warning symbols which alert the user to check
for hazardous conditions. These appear throughout this manual where applicable,
and are defined below. To ensure the safety of operating performance of this in­strument, these instructions must be adhered to.

Warning, refer to accompanying documents.

Caution, risk of electric shock.

This instrument is designed to prevent accidental shock to
the operator when properly used. However, no engineer­ ing design can render safe an instrument which is used
carelessly. Therefore, this manual must be read carefully
and completely before making any measurements.
Failure to follow directions can result in a serious or
fatal accident.

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Digital (Pulse) Outputs

Function 1 pulse / energy unit (Output #1=N Wh, Output #2=N varh)

Scaling Settable 1,10 or 100 counts of associated register

Pulse Period 100ms. (2ms Rise, 2ms Fall)

Type N/O Volt free contact. Optically isolated BiFET

Contacts 100mA AC/DC max, 100V AC/DC max

Isolation 2.5kV (50V #1 to #2)

General

Temperature
Operating
Storage

Environment IP40

Humidity <75% non-condensing

Mechanical

Enclosure DIN 96mm x 96mm Mablex ULV94-V-O

Dimensions 96mm x 96mm x 80mm (72mm behind panel)130mm

Weight Approx. 400g

Terminals Rising Cage. 4.0mm2 cable max

-10 deg C to +65 deg C-25 deg C to +70 deg C

behind panel with options unit fitted

Technical Assistance

SIMPSON ELECTRIC COMPANY offers assistance Monday through Friday,
8:00 am to 4:30 pm Central Time. To receive assistance contact Technical Sup­port or Customer Service at [phone] or contact us through our web site
at www.simpsonelectric.com.

Warranty and Returns

SIMPSON ELECTRIC COMPANY warrants each instrument and other articles
manufactured by it to be free from defects in material and workmanship under
normal use and service, it’s obligation under this warranty being limited to mak­ing good at its factory said instrument or other article of equipment which shall
within one (1) year after delivery of such instrument or other article of equipment
to the original purchaser be returned intact to it, or to one of its authorized service
centers, with transportation charges prepaid, and which its examination shall dis­close to its satisfaction to have been thus defective; this warranty being expressly
in lieu of all other warranties expressed or implied and of all other obligations or
liabilities on its part, and SIMPSON ELECTRIC COMPANY neither assumes nor
authorizes any other persons to assume for it any other liability in connection with
the sales of its products.

This warranty shall not apply to any instrument or other article of equipment
which shall have been repaired or altered outside the SIMPSON ELECTRIC
COMPANY factory or authorized service centers, nor which has been subject to
misuse, negligence or accident, incorrect wiring by others, or installation or use
not in accord with instructions furnished by the manufacturer.

Starting Serial Numbers 02-24-

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CONTENTS

1. MAINTENANCE ...................................................................................1

2. METER OPERATION ...........................................................................1

2.1 Measurements .............................................................................1

2.1.1 Balance Current Measurements ....................................................2

2.1.2 Rolling Demand (V, I kW, kVA and kvar Demands) ...........................2

2.1.3 Meter Types .............................................................................2

2.2 Power Up ......................................................................................3

2.3 Display Pages ..............................................................................3

2.4 Display Menus ............................................................................8

2.5 Display Scaling ............................................................................9

2.5.1 Voltage Scaling (Phase, Peak, MD, Pk MD) .....................................9

2.5.2 Line-Line Voltage Scaling (V

2.5.3 Current Scaling (Phase, Peak, In, MD, Pk MD) .................................9

2.4.4 Per Phase & System Power Scaling (W, VA, var) ...........................10

2.4.5 Energy Registers (Wh, VAh, varh) ..............................................10

2.4.6 Miscellaneous (Frequency, PF, THD)...........................................10

2.6 Energy Register Reset ..............................................................11

2.7 Peak Voltage Reset ...................................................................11

2.8 Peak Current Reset ...................................................................11

2.9 Peak Demand Reset• .................................................................11

2.10 Isolated Pulse Outputs• ..........................................................12

3. INSTALLATION .................................................................................13

3.1 Panel Mounting..........................................................................13

3.2 CT Connections .........................................................................14

3.3 Voltage Connections.................................................................14

3.4 Auxiliary Mains Supply (L & N) ................................................14

3.5 Connection Schematics ...........................................................15

) ....................................................9

L-L

Accuracy

Phase Current 0.2% Ib (1.0% Rdg. 0.05 Ib £ Iph £ 1.2 Ib) ±1 digit.

Neutral Current 0.6% Ib (2.0% Rdg. 0.05 Ib £ In £ 1.2 Ib) ±1 digit.

Phase Voltage 0.2% Vb (1.0% Rdg. 0.2 Vb £ Vph £ 1.2 Vb) ±1 digit.

Line-Line Voltage 0.3% Vb (1.0% Rdg. 0.2 Vb £ VLL £ 1.2 Vb) ±1 digit.

Phase Watts 0.4% FS (1.0% Rdg. 0.05FS £ P £ 1.2FS) ±1 digit.

Phase VA 0.6% FS (1.5% Rdg. 0.05FS £ Q £ 1.2FS) ±1 digit.

Phase var 0.8% FS (2.0% Rdg. 0.05FS £ S £ 1.2FS) ±1 digit.

Phase PF ± 0.2 Degrees

System Watts 0.6% FS (1.0% Rdg. 0.05FS £ P £ 1.2FS) ±1 digit.

System VA 1.0% FS (1.5% Rdg. 0.05FS £ Q £ 1.2FS) ±1 digit.

System var 1.5% FS (2.0% Rdg. 0.05FS £ S £ 1.2FS) ±1 digit.

System PF ± 0.2 Degrees

Frequency ±0.05Hz. 45Hz £ F £ 65Hz

Wh Register Class 1.0 EN 61036

VAh Register Class 2.0

varh Registers Class 2.0 IEC 1268

% THD Amps ± 0.5% THD 0.05 Ib £ Iph £ 1.2 Ib

% THD Volts ± 0.5% THD 0.2 Vb £ Vph £ 1.2 Vb

Timebase Better than 100ppm

4. PROGRAMMING ...............................................................................17

4.1 Description ................................................................................17

4.2 Entering and Exiting Programming Mode...............................17

4.3 Setting The CT Primary Current...............................................17

4.4 Setting The PT Primary Voltage ...............................................18

4.5 Setting Pulse Output 1 Rate .....................................................19

4.6 Setting Pulse Output 2 Rate .....................................................20

4.7 Setting The Ampere/Voltage Demand Period .........................21

4.8 Setting The kW, kVA, kvar Rolling Average Period ...............22

5. OPTIONS ...........................................................................................23

5.1 Retro-Fit Modules .....................................................................23

6. SPECIFICATION ................................................................................24

Display

Display Type Custom, supertwist, LCD with LED backlight

Data Retention 10 years minimum

Display Format
Display Update

Stores energy registers, user settings, and peaks
3 Lines 12mm digits + 3.8mm custom legends1 second

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6. SPECIFICATION

Inputs

System 3-Phase 3 or 4 Wire Unbalanced Load

Voltage Vb. 230 / 400 Volt. 3-Phase 3 or 4 Wire

Vb. 63 / 110 Volt optional
Vb. 120 / 208 Volt optional

Current Ib 5 Amp from external current transformers (CTs)

Ib 1 Amp optional
Fully Isolated (2.5kV each phase)

Measurement Range
Voltage
Current

Frequency Range
Fundamental
Harmonics

Input Loading
Voltage
Current

Overloads
Voltage
Current

Auxiliary Supply

Standard 230 Volt 50/60Hz ±15%

Options 110 Volt 50/60Hz ±15%. (Others to order)

Load 5 VA Maximum

20% to 120%0.5% to 120%

45 to 65HzUp to 20th harmonic

Less than 0.1 VA per phase
Less than 0.1 VA per phase

x2 for 2 seconds maximum
x40 for 0.5 seconds maximum

1. MAINTENANCE

The equipment should be maintained in good working order. Damage
to the product should be repaired by the manufacturer. The meter may
be cleaned by wiping lightly with a soft cloth. No solvents or cleaning
agents should be used. All inputs and supplies must be isolated before
cleaning any part of the equipment.

2. METER OPERATION

2.1 Measurements

The GIMA makes use of a high speed micro-processor and an Analog
to Digital converter to monitor input signals from three independent
phases. Each phase voltage, current and power (kW) are measured di­rectly and a number of other parameters derived from these in software.
The measurement process is continuous with all six signals scanned
simultaneously at high speed. Unlike many other sampling systems,
which sample one phase after another, this ensures that all input
cycles are detected. Distorted input waveforms, with harmonics to the
20th are therefore detected accurately.

Derived parameters are calculated and displayed once a second,
scaled by user programmed constants for current and voltage trans­formers.

Instantaneous power parameters are integrated over long time periods
providing a number of energy registers. System frequency is detected
by digital processing of the phase 1 voltage signal.

2.1.1 Balance Current Measurements

The rms. value of the instantaneous sum of the three phase currents
is available on some GIMA meter types. The total current in a three
phase system may be represented as :

I

= I1 + I2 + I3 = I

bal

I

represents any current leaving the system (e.g. Leakage to earth)

LEAK

In represents current in the neutral (4 wire systems only)

NOTE: In 3-Phase 3-Wire systems the GIMA must be wired using 3
CTs as shown in Figure 3-3 for balanced current measurements to be
made.

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LEAK

+ I

n