8 views
asked by
For complete protection ofa 3— phase line:

(1) Three phase and three—earth fault relays are required

(2) Three phase and two—earth fault relays are required

(3) Two phase and two—earth fault relays are required

(4) Two phase and one-earth fault relays are required

Please log in or register to answer this question.

1 Answer

0 votes
answered by

For complete protection ofa 3— phase line: Two phase and one-earth fault relays are required

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.

...