Question

What is the purpose of back up protection and explain the types of relays used for back up protection?

Answer 1

Answer⏬

⏩If due to some reason, the Main protection fails, the Back-up protection serves the purpose of protection. Main protection can fail due to failure of one of the components in the protective system such as relay, auxiliary relay Current Transformer, PT, trip circuit, circuit-breaker, etc.

Ï hope it help u ☺.

Answer 2

Answer:

If due to some reason, the Main protection fails, the Back-up protection serves the purpose of protection. Main protection can fail due to failure of one of the components in the protective system such as relay, auxiliary relay Current Transformer, PT, trip circuit, circuit-breaker, etc.