GE EPM 5350, EPM 5200, EPM 5300 instruction manual Phase Reversal and Phase Imbalance

GE Consumer & Industrial

Multilin

EPM 5300 Series Meters

Chapter 13: Phase Reversal

and Phase

Imbalance Set

Limits/Relays

13.1 Phase Reversal and Phase Imbalance

The set limit alerts the user of an unbalanced or a reversed phase in a Three-phase

System. The EPM 5300P has two options for this purpose. The standard set-up is clockwise

ABC rotation. Counterclockwise CBA rotation can be selected in GROUP 03.1, Switch C UP.

PHASE REVERSAL: Activates when a reversed phase enters the EPM 5300P’s metering system.

PERCENT PHASE IMBALANCE: Activates when the user's preset value percent phase

imbalance is exceeded. For example: an unbalanced Three-phase System.

Note: The EPM 5200P does not have this capability.

PHASE IMBALANCE Limits Triggered

10%

(%)

Limits Not Triggered

10:00 AM 11:00 AM THREE-PHASE SYSTEM IMBALANCE

FIGURE 13–1: Example of Set Limits

EPM 5300 SERIES ADVANCED POWER METERS – INSTRUCTION MANUAL 13–101