Directional relays are based on flow of____________?

Related Mcqs:

Thermal circuit breaker has____________?

A. delayed trip action B. instantaneous trip action C. both of the above D. none of the above...

Circuit breakers usually operate under______________?

A. transient state of short-circuit current B. sub-transient state of short-circuit current C. steady state of short-circuit current D. after D.C. component has ceased...

A transmission line is protected by_____________?

A. inrush protection B. distance protection C. time graded and current graded over current protection D. both (B) and (C) E. none of the above...

Over voltage protection is recommended for______________?

A. hydro-electric generators B. steam turbine generators C. gas turbine generators D. all of the above E. none of the above...

The inductive interference between power and communication line can be minimized by__________?

A. transposition of the power line B. transposition of the communication line C. both (A) and (B) D. increasing the distance between the conductors...