Differential Protection Relay in Power System: A Differential Protection Relay in Power System scheme compares quantities derived from the input and output currents of the protected circuit in such a…
Differential Protection of Transformers: Differential Protection of Transformers is the most important type of protection used for internal phase-to-phase and phase-to-earth faults and is generally applied to transformers having ratings…
Differential Protection of Alternators: The most common system used for the protection of stator winding faults employs circulating-current principle (Refer back to Art. 21.18). In this scheme of Differential Protection…
Differential Magnetic Balance Protection for Transformers: This differential magnetic balance protection system is necessarily a combination of circulating current and self balance protection systems. The main advantages of this differential…
Harmonic Restraint Differential Relay for Transformer Protection: The operation of the relays because of magnetising inrush current can be avoided by using kick fuses across the relay coils or using…
Percentage Differential Relay Protection of Generator: This system, also called the Merz-Price protection system, is the most common type of protection used for stator windings against phase-to-phase or phase-to-ground faults.…
Differential Pilot Wire Protection: The Differential Pilot Wire Protection is based on the principle that under normal conditions, the current entering one end of a line is equal to that…
Protection and Switchgear Interview Questions and Answers: Following are the below Protection and Switchgear Interview Questions and Answers, Protection and Switchgear Important Questions and Answers 1. Mention the essential features…