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EPM 5300 SERIES ADVANCED POWER METERS – INSTRUCTION MANUAL 12–89
EPM 5300 Series Meters
Chapter 12: Groups 4, 5 and 6—
Set Limits and
Relays
GE Consumer & Industrial
Multilin
Groups 4, 5 and 6—S et Limits and Relays
The EPM 5300P -NL offers a comprehensive limit and set point functionality. The user can
program above or below limits for every reading, including %THD. When a voltage or
current measurement exceeds a particular value, the set limit is triggered and alerts the
user. Each limit can trigger two internal Form C dry contact relays for alarm or secondary
protection.
The EPM 5300P offers two set limit points available for each measured function: LM1 and
LM2. Each limit can be set at any desired level. Note: The EPM 5200P does not have limit
setting capability.
FIGURE 12–1: Example of LM1/LM2 Set Limits
LM1 AND LM2 SET LIMITS
PHASES
CURRENT
0
20
40
60
80
100
120
ABC
120
40
LM1 is triggered
LM2 is triggered
50
(AMPS)
80
LM1 SET TO
TRIGGER ABOVE
100 AMPS.
LM2 SET TO
TRIGGER BELOW
50 AMPS.