Troubleshooting Guide - GE EPM 5100 Instruction Manual

GE Consumer & Industrial
Multilin
6.1 Troubleshooting
6.1.1

Troubleshooting Guide

WARNING
EPM 5100 ELECTRONIC POWER METER – USER GUIDE
Courtesy of NationalSwitchgear.com
EPM 5100 Electronic Power Meter
Chapter 6: Miscellaneous
Miscellaneous
The following notes are provided for troubleshooting and isolating common problems.
They do not cover every possible situation. Contact GE Multilin if the problem is not
resolved by these procedures.
All current and voltage inputs (CTs and PTs) must be de-energized before removing or
making connections to the EPM 5100.
1. Symptom: The vars reading is erratic and does not reflect a stable value.
Possible Cause: There is no voltage and/or current at the inputs and the EPM 5100
is seeing random noise.
Corrective Action: Apply current or voltage, or lower the PT or CT ratios of the
unused input. This will reduce the susceptibility of the input to noise.
2. Symptom: Nothing is displayed for current or voltage.
Possible Cause: Current and/or voltage are not present at the input terminals or
the EPM 5100 is improperly wired.
Corrective Action: Check the wiring for the proper connections and phasing.
Verify the presence of current and voltage.
3. Symptom: The current or voltage reading is incorrect.
Possible Cause #1: An incorrect PT or CT ratio was entered.
Corrective Action #1: Enter the Program mode and verify the PT and CT
ratios.
Possible Cause #2: An incorrect PT connection was made.
Corrective Action #2: Enter the Program mode and verify the PT connection.
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