GE EPM 3000P instruction manual Programming Group, Input Voltage PT Ratio Full Scale

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CHAPTER 8

PROGRAMMING GROUP 1

8.1SCALE SELECTIONS AND FULL SCALE SETTINGS

Programming GROUP 1 functions provide a selection of Full Scale Settings to accommodate the different CT’s and PT’s. The decimal point may be positioned for maximum resolution. The user can perform Scale Selection in each function. The site technician has a choice of Full Scale selection between volts and kilovolts or amps and kiloamps.

NOTE: DUE TO THE RESOLUTION CAPABILITY, READINGS OVER 2000 COUNTS RESULT IN A LESS STABLE MEASUREMENT.

ÖTables 8-0and 8-1contain Full Scale settings for typical voltages and currents (PT and CT arrangements):

TABLE 8-0

INPUT VOLTAGE

PT RATIO

FULL SCALE

120/208V

1:1 (DIRECT)

120V

120/208V

4:1

480V

120/208V

12:1

1.44KV

277/480V (SUFFIX G)

1:1 (DIRECT)

300V

TABLE 8-1

INPUT CURRENT

 

CT TYPE

 

FULL SCALE

0 - 5A

 

NONE

 

5.00A

0 - 1000A

1000/5

 

1000A

0 - 5000 A

5000/5

 

5.00KA

TABLE 8-2: GROUP 1 PROGRAMMING FORMAT

 

FUNCTION NUMBER

 

FUNCTION

 

0.

 

Full Scale Selection for Volts

1.

 

Full Scale Selection for Amps

E.

 

Exit Programming GROUP 1

8.2GROUP 1, FUNCTIONS 0-1: FULL SCALE SETTINGS, VOLT & AMP CHANNELS, VOLT & AMP DECIMAL PLACEMENT

ÖTo change the VOLT OR AMP FULL SCALE settings (Function 0 and 1, respectively), follow these steps:

NOTE: PRESS MAX/MIN/LIMITS, AT ANY TIME, TO CANCEL BEFORE STORING THE LAST DIGIT OR SWITCH.

AC VOLTS

I. AI BI CI AI BI CI

N N N B C A

AC AMPS

A B C N

MAX MIN

 

LM1 LM2

 

 

 

 

 

 

 

AC VOLTS

 

 

 

 

I0.

A B C A B C

 

 

 

 

 

I I I I I I

 

 

 

 

 

N N N B C A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I20

AC AMPS

 

 

 

 

 

 

 

A B C N

 

 

 

 

 

 

 

 

 

 

 

MAX MIN

 

LM1 LM2

 

 

 

 

 

 

 

 

 

 

 

MAX/MIN PRINT LIMITS PROG

VOLTS AMPS

PHASE NEXT

MAX/MIN

PRINT

LIMITS

PROG

VOLTS

AMPS

PHASE

NEXT

Step 1:

a.Enter Group Level of Programming Mode, (see Chapter 6).

b.Press MAX/MIN/LIMITS until 1. appears in upper display.

c.Press VOLTS to activate the Group.

Step 2:

Ö10. appears in upper display.

ÖLower display indicates Full Scale setting.

ÖA segment appears in upper display.

ÖUP signifies - Kilovolts.

ÖDOWN signifies - Volts.

a.Press VOLTS to begin Data Entry Sequence.

29

GE Industrial Systems

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Contents EPM 3000P All Rights Reserved Customer Service and Support Installation & O P E R a T I O N O G R a M M I N G Installation & Operation Mechanical InstallationMechanical Installation PortElectrical Installation CT Size VA Maximum Distance CT to EPM3000PListing of Connection Diagrams Electrical InstallationWith Direct Voltage and CTs With 2 CTs and 2 PTsIII. Open Delta PT Connection With 3 CTs and 2 PTsThree Phase System Wye System with PTs DUAL-PHASE Back ViewCOM RS-232C Communication InstallationRS-485 RS-485 Hookup Diagram 2 wire Half Duplex Communication InstallationRS-485 Hookup Diagram 2 wire Half Duplex Detail View EPM3000P Overview Volts Amps‰ Protected Reset ‰ Unprotected ResetEPM3000P Overview Voltage Phase Reversal Voltage Phase Imbalance LimitAccess Operation I000222 ÖTo Print the Programming DATA, follow these steps300.0 General Procedure Overview GROUPS, Functions, and Switch PacksUsed for General Procedure OverviewPassword Standard Numeric Data EntryEntering the Programming Mode 555Programming Group 0 Global Meter Setup Function NumberGlobal Meter Setup 020I20 Pack Switch Feature Segment Position Computer Controlled Dedicated Alarm 03.0S E T I25 Input Voltage PT Ratio Full Scale Programming GroupInput Current CT Type Full Scale I50 Programming GroupVolts 4/1 PT Programming Group 2 Meter Calibration To change the CALIBRATION, follow these steps250 Programming Group 4 SET Limits & Relays 10.1LM1 LED LM2 LED ABOVE/BELOW Relay Value Set Limits & RelaysLM1 LED LM2 LED ABOVE/ below Relay Level Set Limits and Relays ÖTo program Limits or RELAYS, follow these stepsSee to Exit Phase Reversal Percent Phase ImbalancePhase Reversal & Phase Imbalance Set Limits/Relays ÖTo change the Phase Reversal settings, follow these stepsI0.0 Exiting the Programming Mode If YOU are Located AT

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