GE EPM 5300 Voltage Phase Reversal and Imbalance, Step, a. Press PHASE/NEXT, PHASE/NEXT. While

CHAPTER 5: OVERVIEW

MAX	AC VOLTS
MIN		A B C A B C
LM1		N N N B C A
LM2		AC AMPS
			A B C N
				POWER
					PF
					KW
					KVA

KVAH KWH FREQ KVAR

MAX/MIN	VOLTS	AMPS	POWER	PHASE
LIMITS				NEXT

a.To access the set limit, press MAX/MIN/LIMITS

•3 times for LM1

•4 times for LM2

5.9: Voltage Phase Reversal and Imbalance

In a three-phase power distribution system, normal phase shift between each line is 120°. If the EPM 5300P detects an abnormality, it displays a message of PH. The EPM 5200P does not have this feature.

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

MAX	AC VOLTS		MAX	AC VOLTS		MAX	AC VOLTS		MAX	AC VOLTS
	A B C A B	C		A B C A B	C		A B C A B	C		A B C A B	C
MIN			MIN			MIN			MIN
	N N N B C A			N N N B C A			N N N B C A			N N N B C A
LM1			LM1			LM1			LM1
LM2	AC AMPS		LM2	AC AMPS		LM2	AC AMPS		LM2	AC AMPS
	A B C N			A B C N			A B C N			A B C N

			POWER
			PF
			KW
			KVA
KVAH	KWH	FREQ	KVAR
MAX/MIN	VOLTS AMPS	POWER PHASE
LIMITS			NEXT

			POWER
			PF
			KW
			KVA
KVAH	KWH	FREQ	KVAR
MAX/MIN	VOLTS AMPS	POWER PHASE
LIMITS			NEXT

			POWER
			PF
			KW
			KVA
KVAH	KWH	FREQ	KVAR
MAX/MIN	VOLTS AMPS	POWER PHASE
LIMITS			NEXT

			POWER
			PF
			KW
			KVA
KVAH	KWH	FREQ	KVAR
MAX/MIN	VOLTS AMPS	POWER PHASE
LIMITS			NEXT

Step 1:	Step 2:	! This display	! This display
a. Press and hold down	a. Press PHASE/NEXT	indicates a Voltage	indicates a Voltage
PHASE/NEXT. While	to select zero.	Phase Reversal.	Phase Imbalance.
holding down
PHASE/NEXT, press
AMPS to access the
display.
!(PH indicates both
Voltage Phase
Reversals and Voltage
Phase Imbalances.)

Note: In the event Voltage Phase Reversal and Voltage Phase Imbalance occur simultaneously,

the display alternates between the incorrect phase sequence and the exceeded limit percentage. After six seconds the display returns to the normal operating mode.

GE Multilin EPM 5000 series Advanced Power Meters 33