16 views
asked by
The purpose of the restraining coil in a biased differential relay is 

(A) To reduce CT saturation during fault. 

(B) To increase the sensitivity of the relay. 

(C) To match the transformation ratio. 

(D) To limit the spill current through the relay during heavy external fault.

Your answer

Thanks for your contribution. Feel free to answer this question. Please avoid short answer. Your answer is most welcome. Be genuine.

Upload image or document:

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.

1 Answer

0 votes
answered by

The purpose of the restraining coil in a biased differential relay is To limit the spill current through the relay during heavy external fault.

Welcome to Q&A site for electrical and electronics engineering discussion for diploma, B.E./B.Tech, M.E./M.Tech, & PhD study.
If you have a new question please ask in English.
If you want to help this community answer these questions.

...