Carrier Current Protection of Transmission Lines: In modern high-power electrical systems it is necessary to have quick acting protections on long transmission lines. The requirements to be met by such…
Types of Power Transmission Drives: Mechanical power available at the motor shaft has to be transmitted to the driven machine or machines. Various types of power transmission drives are namely,…
Protection of Feeders and Transmission Lines Interview Questions and Answers: 1. What is unit type protection ? Ans. Unit system of protection is one in which the protection responds to…
High Voltage DC Transmission Interview Questions and Answers: 1. Why is voltage regulation better in case of dc transmission ? Ans. Because of absence of inductance in dc systems. 2.…
High Voltage AC Transmission Interview Questions and Answers: 1. What are the transmission voltages that are used in India ? Ans. 33, 66, 110, 132, 220 and 400 kV. 765/800…
Performance of Short and Medium Transmission Lines Interview Questions and Answers: 1. What are the factors which govern the performance of a transmission line ? Ans. The factors governing the…
Transmission Line Constants Interview Questions and Answers: 1. Distinguish between ac and dc resistances of a conductor. Why the two differ ? Ans. The resistance offered to dc, by a…
Series and Shunt Compensation of Transmission Lines: The performance of long EHV AC transmission systems can be improved by reactive compensation of series or shunt (parallel) type. Series capacitors and…