Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

who is make controlling in the reactive power that genarted in AS genrator(the exitaion currnt or exitation voltge)

2 4387

do you have some of interview Questions in power and genrator section in general whith answers

2225

why we are using the ac supply in domestic purpose, why don't use dc supply.

5 8398

transform oil how going to act like ainsulation purpose

Siemens,

1 4281

What is principal to reduce earth leakage current with isolation transformer? When isolation transformer is installed in input stage of system, earth leakage current is reduced. the reason is why the leakage current of 2nd stage of isolation transformer does not affect the 1st stage's leakage current. I would like to know the reason. As you know, earth leakage current is a kind of AC. So, How to reduce earth leakage current in case that isolation transformer is used?

2 10570

what is difference of electrical and electronics

SSIL,

6 7841

why we are using the ac supply in domestic purpose why don't use dc supply

Airtel, SSIL,

6 16989

we are operationing 3NOs 800 Kva generators by singronyus.specialey evening time our panel trip. the panel showing generator earth fault

RRB,

4 7682

star delta starter single line digram

1 6805

in transfomer which type of oil is use!

Essar,

9 11902

What are the protections required in the main lt panel which is connected to the transformer.

Ispat,

1 3144

what is the difference between ac drives and dc drives?

1 4056

Why is DC use instead of AC for protection and control circuits?

4 9119

What is the difference between Earth and Neutral?

2 5681

why there is a humming noise in transformer

6 9288

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Un-Answered Questions { Electrical Engineering }

Define open loop control system.

1156

why do we lay up the core of a cable?

2068

How to convert a two phase power into a three phase power in induction machine?

1849

What is phenomenon of electromagnetic induction and how it works?

1122

What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

6223

Which motor connection is preferable star-delta or delta-star?

1121

State the formula for overall efficiency of thermal power station

3082

how we can calcultae the short circuit level for bus bar

2285

What is order of the system?

1178

what is formula for calculate thermal overload in new numiricalrelay( not in bimetal relay)?

2363

comparision between ACB and VCB

2417

Can XLPE/SWB/PVC (P3) 7C X 2.5mm2 be replaced by Can XLPE/SWB/PVC (P2) 7C X 2.5mm2??? P3 vs P2

1908

what is meant by impedance & transient protection?

2158

What are the two major types of control system?

1142

What is an iron loss or core loss pi?

1174

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