GE GEK-106465A instruction manual Internal State, Circuit Output Breaker Operand Status

HARDWARE

INTERNAL STATE	V 52/a	SUPERVISION
52 open	ON	Ok
52 closed	ON	Ok
TRIP	OFF	Ok if t < 0.5 s
TRIP with 52 open	OFF	Ok if t < 0.5 s

There is a possibility to monitor the trip circuit and trip coil continuity. This can be done by monitoring Vdc through the output contact when this is open.

As shown on FIGURE 3-10, when the relay is not tripped, trip contact 35-36 remains open. If the breaker is closed, its auxiliary contact 52a is closed. Therefore, a little current is flowing, about 2 mA, through terminals 15 and 16 through the voltage detector circuit, which flows through 52/a and the tripping coil 52TC (TC = tripping coil). Current will only circulate when there is continuity in the whole circuit, so the complete circuit is monitored, and not only the trip coil. This circuit includes auxiliary 52/a as well as the whole wiring between the battery and the relay tripping terminals, and between these and the breaker tripping circuit.

This is the first case shown on the table. With closed breaker, voltage is detected by V 52/a sensor, and this means that there is continuity in the supervised circuit.

In this table, ON means that the voltage detector V52/a is active, detecting voltage presence.

Status of Involved Elements			Input to F650	Decision
CIRCUIT	OUTPUT	BREAKER	OPERAND	OPERAND
STATUS	STATUS	STATUS	CONTACT	CONTACT
	(F35-F36)		INPUT_00_10	INPUT_00_15
			(Va_COIL2)	(SUP_COIL2)
			V 52/a (F15-F16)
Healthy	Open	52 closed	ON	ON
Healthy	Open	52 open	ON	ON
Healthy	Closed	52 closed	OFF	ON (if t < 500 ms)
				OFF (if t > 500 ms)
Healthy	Closed	52 open	OFF	ON (if t < 500 ms)
				OFF (if t > 500 ms)
Faulty	Open	52 closed	OFF	OFF (500 ms delay)
Faulty	Open	52 open	OFF	OFF (500 ms delay)
Faulty	Closed	52 closed	OFF	OFF (500 ms delay)
Faulty	Closed	52 open	OFF	OFF (500 ms delay)

24 CIO Remote CAN Digital I/O Module GEK-106465A