Q. Time graded protection of a radial feeder can be achieved by using (Solved)
1. Definite time relay
2. Inverse time relay
3. Both definite and inverse time relays
4. None of the above
- c. Both definite and inverse time relays
1. Definite time relay
2. Inverse time relay
3. Both definite and inverse time relays
4. None of the above