Trip Circuit Supervision Relay Circuit Diagram Pdf. Relay b will detect trip circuit abnormalities with the circuit breaker open in a similar manner as relay a with the circuit breaker closed. If the trip circuit opens or the trip supply fails relay a drops off and opens contact a1 to de energize relay c.
Trip circuit supervision relays 5. If the trip circuit opens or the trip supply fails relay a drops off and opens contact a1 to de energize relay c. The supervision relay tcs is designed for the supervision of trip circuits and other important control and monitoring circuits.
The trip circuit supervision relay sper 1b1 c4 is used for supervising important control circuits such as circuit breaker and disconnector control circuits and signalling circuits in power electrical installations.
The supervision function in three steady states of circuit breaker trip circuit can be. Trip circuit supervision relays 5. Block diagram of the relay is shown in fig. Trip circuit supervision relays features simple and robust construction positive action without chatter choice of pre closing and post closing supervision application post closing or continuous supervision of the trip circuit of cir cuit breakers general description type vax and mvaxm relays are of simple and robust con struction.
