Travelling Waves Interview Questions and Answers: 1. What are the values of natural impedances for overhead lines and cables ? Ans. The value of natural impedance for an overhead line…
Bus Bar Protection Interview Questions and Answers: 1. Why use of single bus-bar arrangement is restricted to small and medium sized substations and small power stations ? Ans. The glaring…
Transformer Protection Interview Questions and Answers: 1. What are the faults that are likely to occur in a power transformer ? Ans. The faults likely to occur in a power…
Protection of AC Generators and Motors Interview Questions and Answers: 1. What are the common types of generator faults ? Ans. The common types of faults occurring in synchronous generators…
Protective Relays Interview Questions and Answers: 1. What is a protective relay ? Ans. Protective relay is an electrical device designed to initiate isolation of a part of an electrical…
Circuit Breaking Interview Questions and Answers: 1. What is a circuit breaker ? Ans. Circuit breaker is a mechanical device designed to close or open contact members, thus closing or…
Fuses Interview Questions and Answers: 1. What is meant by a fuse ? Ans. Fuse is a device used in an electrical circuit for protecting electrical equipment's against overloads and/or…
Symmetrical Fault Analysis Interview Questions and Answers: 1. What is meant by fault level ? Ans. When fault occurs at a point in a power system, the corresponding MVA is…