Power System Operation and Control Interview Questions and Answers: Following are the below Power System Operation and Control Interview Questions and Answers, Power System Operation and Control Important Questions and…
Static Differential Relay Block Diagram and Working Principle: The differential relay measures the phasor difference between two similar electrical quantities (voltage-voltage or current-current). The rectifier bridge amplitude comparator is the…
Electrical Braking of Polyphase Induction Motors: Electrical Braking of Polyphase Induction Motors which consists of different types, namely, Plugging (or Counter-Current Braking) Dynamic (or Rheostatic) Braking Regenerative Braking 1. Plugging…
Selection of Electric Drive: For selection of electric drive motor it is essential that the conditions of service are well known. It is not sufficient to simply specify the output…
Nature of Electric Supply: The nature of electric supply available may be 3-phase ac, single-phase ac or dc. In case three-phase ac supply is available, polyphase induction motor, squirrel cage…
Train Movement and Energy Consumption Interview Questions and Answers: 1. What is meant by speed-time curve ? Ans. The curve drawn between speed and time taking speed on the Y-axis…
Application of Relay Articles: Comparator Equation in Power System Protection: Taking a very general case to cover the complete range of conventional relay characteristics, let S1 and S2 be the…
Differential Relay Application: The principle of operation depends on a simple circulating current principle where the difference of the currents of the two CTs flows through the relay under normal…