How does the trip circuit of a circuit breaker work? Also describe the fault clearing process in briefly.
An overhead 3-phase transmission line delivers 5000 kW at 22 kV at 0.8 p-f lagging. The resistance and reactance of each conductor are 4Ω and 6Ω respectively. Determine
(i) Sending end voltage
(ii) Percentage regulation and
(iii) Transmission efficiency
What is meant by mobile communication? Distinguish between mobile radio and cellular mobile radio system.
Discuss electricity tariff setting policy. Why and how this differ from region to region?