TIME DELAY: In order to achieve selectivity and back-up protection, it is essential t…

INSTANTANEOUS OVER CURRENT RELAY:  These relays work without an intentional time dela…

MAGNETISING INRUSH CURRENT:- Magnetising inrush current refers to the current which f…

FAULTS OF TRANSFORMERS: Different type of faults that occur in transformers are below…

ELECTROMECHANICAL REALY:- In electromechanical type of relays, when the actuating qua…

It is thus wise to divide an electric power system into different protective zones, whi…

The power system network in any region or country constitutes the backbone of it's …