Electrical interview questions – page 10

WHERE IS THE LIGHTING ARRESTER SHOULD BE PLACED IN DISTRIBUTION LINES?

How many types 0f thermocouples?

If 50hz transformer is required to be run on 50% frequency what needs to be done???????????

What is the difference between Isolator annd Circuit Breaker.

What is the working principle of DC generator ?

WHAT IS THE PERCENTAGE OF LOSSES IN TRANSMISSION LINE?

What are the various types of earthing? plz give brief detail of all.

Difference between ac and dc

In Ferranti effect,Receiving end voltage is greater than sending voltage,why? can anybody tell me the answer

What is AVR? Explain the function AVR?

In 6.6 kv vaccum circuit breaker vaccum bottole vaccum capacity ????

How do you implement a fourth order Butterworth LP filter at 1kHz if sampling frequency is 8 kHz?

WHAT IS 4TH LAW OF THERMODYNAMICS?

What are the merits and demerits of synchronous motor over an induction motor...??

What is mean by hot loop and cold loop testing, whts different between both

What is meant by slip & where its occur ?

How does and Earth Fault Relay operates in DG set control panel?

What are ampers.30kw motor.440volts.

11kv has three live wires how much voltage is in its singlewire(leaving the other two wires)

What is the difference between reciprocating & rotary motors in AC units, which is the best one in terms of operation.

What are various impedence in any machine

What do you meant by slip power recovery?

What are the names and size of various conductors used in transmission lines

Why transformer neutral is earthed

Difference between over current and over load protection?

How checking is done in fiber optic cable?explain the working of RTU?

Why HT motors are earthed only at equipment side & for it's single core cable with aluminium wire armoure using?

Why we r using 4-20ma instead of 0-20ma in instrumentation

Is any body explain me why return current in three phase power system is less then in a red, yellow, blue phases???as we know Ir+Iy+Ib=In then why nutral wire has less then phase current????

What is the powerfactor