GE EPM 3000P instruction manual Voltage Phase Reversal, Voltage Phase Imbalance Limit

Page 20

Chapter 4 EPM3000P Overview

AC VOLTS

 

 

 

 

 

 

 

 

 

A B C A B C

 

 

 

 

 

 

 

 

 

I I I

I I I

 

 

 

 

 

 

 

 

 

N N N B C A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

005

 

AC AMPS

 

 

 

A B C N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX MIN

 

 

 

LM1

 

LM2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX/MIN

PRINT

VOLTS

AMPS

PHASE

 

 

 

 

 

 

 

 

LIMITS

PROG

NEXT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

_

AC VOLTS

 

 

 

 

 

 

 

 

 

_

 

A B C A B C

 

 

 

 

 

 

 

 

 

 

I I I

I I I

 

 

 

 

 

 

 

 

 

 

N N N B C A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

_ _

 

 

AC AMPS

 

 

 

 

 

_

 

 

 

A B C N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX

 

 

 

LM1

LM2

 

 

 

 

 

 

 

 

 

 

MIN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX/MIN

PRINT

VOLTS

AMPS

PHASE

 

 

 

 

 

 

 

LIMITS

PROG

NEXT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Step 3:

a. Press PHASE/NEXT each time the appropriate password number appears.

Step 4:

ÖUpon entering the correct password, the display blanks and a checkmark appears, confirming successful reset.

4.3ACCESSING THE LM1/LM2 SET LIMITS FROM OPERATING MODE

The DMVA100 is designed with two manual set limits. The set limits monitor the instantaneous readings, warning the user of abnormal conditions. Each limit can detect readings above or below the set level. SET LIMITS: the point when the relay changes position, if the DMVA100 is equipped with the Relay Option (Suffix -NL).

If a limit is exceeded, the annunciator LM1 and/or LM2 indicator glow and the display flashes, alternating between the instantaneous reading.

ÖTo VIEW THE SETUP OF THE LM1/LM2 SET LIMITS OF THE FUNCTIONS, follow these steps:

AC VOLTS

I25.0 AI BI CI AI BI CI N N N B C A

AC AMPS

A B C N

MAX MIN

LM1 LM2

 

 

 

 

 

 

 

AC VOLTS

 

 

 

 

A B C A B C

 

 

 

 

 

 

I I I I I I

 

 

 

 

 

 

N N N B C A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

l i

AC AMPS

 

 

 

 

 

A B C N

 

 

 

 

 

 

 

 

 

 

MAX MIN

 

LM1 LM2

 

 

 

 

 

 

 

 

 

 

AC VOLTS

 

 

 

 

A B C A B C

 

 

 

 

 

I I I I I I

 

 

 

 

 

N N N B C A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

l i

AC AMPS

 

 

 

 

A B C N

 

 

 

 

 

 

 

MAX MIN

 

LM1 LM2

 

 

 

 

 

 

 

MAX/MIN PRINT LIMITS PROG

VOLTS AMPS

PHASE NEXT

 

 

 

 

 

 

 

 

 

 

MAX/MIN

PRINT

VOLTS

AMPS

PHASE

 

 

 

LIMITS

PROG

NEXT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MAX/MIN

PRINT

VOLTS

AMPS

PHASE

 

 

 

LIMITS

PROG

NEXT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Step 1:

Step 2:

Step 3:

a. To access the set limit, press

a. Press PHASE/NEXT when the

a. Press PHASE/NEXT when the

MAX/MIN/ LIMITS:

LM1 annunciator glows.

LM2 annunciator glows.

ÖTHREE times for LM1

ÖThe annunciators that glow are

ÖThe annunciators that glow are

ÖFOUR times for LM2

out-of-limits in LM1.

out-of-limits in LM2.

4.4VOLTAGE PHASE REVERSAL AND IMBALANCE FROM OPERATING MODE

In a three phase power distribution system, the normal phase shift between each line is 120°. The EPM3000P detects an abnormality and displays a PH message every six seconds.

VOLTAGE PHASE REVERSAL:

If there is an incorrect connection, such as mistaking line A for line B, a PH message appears. The correct sequence is a-b-c.

VOLTAGE PHASE IMBALANCE LIMIT:

Can be detected using the phase imbalance limit in the Programming Mode. The phase imbalance is expressed in a percentage with 0% indicating a 120° phase shift between each line. A PH message appears if the limit is exceeded.

15

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-485 Communication InstallationRS-232C RS-485 Hookup Diagram 2 wire Half Duplex Communication InstallationRS-485 Hookup Diagram 2 wire Half Duplex Detail View EPM3000P Overview Volts AmpsEPM3000P Overview ‰ Unprotected Reset‰ Protected Reset 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 PacksGeneral Procedure Overview PasswordUsed for 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 Current CT Type Full Scale Programming GroupInput Voltage PT Ratio 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 Level Set Limits & RelaysLM1 LED LM2 LED ABOVE/BELOW Relay Value 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

EPM 3000P specifications

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