GE EPM 3000P instruction manual Programming Group 4 SET Limits & Relays, 10.1

CHAPTER 10

PROGRAMMING GROUP 4: SET LIMITS & RELAYS

GROUP 4 contains LM1 and LM2 set limit values for the voltage and amperage scale allowing the user to program the limits for the following Groups: VOLTS phase-to-neutral, VOLTS phase-to-phase, AMPS A, B, C, and AMPS neutral.

DIAGRAM 10.1: EXAMPLE OF LM1/LM2 SET LIMITS, VOLTS AND AMPS
		120		120
					LM1 is triggered
							LM1 SET TO
		100					TRIGGER ABOVE
			80				100 AMPS.
		80
CURRENT		60			40		LM2 SET TO
(AMPS)		50					TRIGGER BELOW
							50 AMPS.
		40
					LM2 is triggered
		20
		0	A	B	C
						LM1 AND LM2 SET LIMITS
					PHASES
10.1	TRIP RELAY

The EPM3000P has two Relays. These relays are linked through the program to Set Limits LM1 and LM2. The user can program above or below set limits for every reading. When a measurement exceeds a particular value, the set limit triggers and alerts the user. Each relay is programmed to a separate delay time (see Chapter 8).

NOTE: EACH LIMIT CAN BE PROGRAMMED TO TRIGGER THE TWO INTERNAL FORM C DRY CONTACT RELAYS FOR ALARM OR SECONDARY PROTECTION.

GROUP 4: SET LIMITS FOR VOLTS/AMPS

TABLE 10-0: GROUP 4 PROGRAMMING FORMAT

FUNCTION NUMBER	FUNCTION
0.	LM1/LM2 Set Limits for Volts AN,BN,CN
1.	LM1/LM2 Set Limits for Volts AB,CB,CA
2.	LM1/LM2 Set Limits for Amps A,B,C
3.	LM1/LM2 Set Limits for Amps Neutral
E.	Exit Programming GROUP 4

NOTE: IN TABLE 10-0,ALL FUNCTIONS HAVE A TWO PART ENTRY.

Part 1: The first switch sets the limit to trip either above or below the limit value.

The second switch sets whether Relay 1 will trip when the condition occurs.

The third switch sets whether Relay 2 will trip when the condition occurs.

Part 2: The second part is the Limit Value.

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