Electrical Q & A Archives

Transmission Lines Protection Questions Answers

Transmission Lines Protection Questions Answers What is meant by Tine Graded Protection? Time Graded protection is a scheme of over current

High Voltage (HV) Interview Questions Answers Why Earth Wire is provided in the overhead transmisssion lines? Earth wire is provided

Voltage Control Interview questions How the Voltage Control in power system is achieved? Voltage control is achieved by suitably installing

What is load curve? The curve drawn between the variations of load on the power station with reference to time

What is meant by V/F control? When the frequency is reduced, the input voltage must be reduced proportionally so as

Why thyristors are not preferred now a days for chopper fed DC drives? Since it requires commutation circuit, thyristors are

What are the main functions of control gear? To provide a means of starting and stopping the motor and, at

What is a transformer? Transformer is a static electrical device which transfers power from one circuit to another circuit without

What are the sources of reactive power? How it is controlled? The sources of reactive power are generators, capacitors, and