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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what are the advantages disadvantages of connecting high voltage block( 1:1 transformers) transformers between the turbo generators and busbars.

Bajaj,

2104

what is vA rating and class of a ct.

L&T,

1863

what is the ka rating of mccb. and how it is decided .

Napino,

3 6719

WHAT IS THE DIFFERENCE BETWEEN UNDERVOLTAGE COIL, CLOSING COIL AND SHUNT TRIP COIL OF AN ACB?

Alstom,

2 40493

why to use freewheeling diode ( diode in revers bias mode) across dc coil

2 5021

What is A check, B check, C Check & D check for a diesel Generat

Jtekt Koyo Bearings,

2120

In Megger which types of test we can do ? and How it works? How to use?

Power Grid,

3 6686

what precautions to be taken while desigining a LT,HT panel. Eg-LT panel PCC panel with ACB installed. HT panel VCB panel with VCB installed. & what is main diffrence betwn IP54 & IP55 construction of panel.

Bhel,

3046

what is motor contrl center .

3 5287

difference between temperature sensor and temperature switch

ABB,

3 9408

Can anybody please refer the best and simple book for about Protection relays and in detail of all its protection ?

1977

Whats changes in Transformer Oil BDV in changes in temp or Climate?

TATA,

2 6370

why the electrical plug point pin(earth) size in max

Autoneum Nittoku, Bajaj,

1 5280

what is dedicated earthing

Apollo Power, Student,

2 11431

how do you select the ct/pt rating in substation

Apollo, Shreem Electric Ltd, Tata Motors,

1 7755

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Un-Answered Questions { Electrical Engineering }

design of IGBT firing circuit for 11KV

2642

what will happen if the prime mover on the field excitation of the on-coming generator fails?Explain.

5546

what is servo motor and how to work it.

1920

What is relation between mu(nought) and epsilon(nought)?

1536

can mini-curcuit supply MIL-tested transformer !

2134

Is there any reason that we get shock on touching phase wire because the earth is at neutral potential? Is there any reason that the earth is at neutral potential because the neutral is earthed in apower station

2013

what is meant by 3rd hormonics ?

2024

what is tri state logic gate

2202

How many methods use the load flow solution?

1345

wish of these transformer uses oil?

1627

what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....

9229

There are Two questions about Steam Turbine Generator... What is HRSG bypass of LP, HP used for in power generation? In particualar, in the event that fault of HP bypass, there would be STG TRIP in operation but none on the LP bypass fault...what's the reason ?

2321

which book to refer in electrical engineering for iocl exam & which book for general english.

2242

how to check three phase motor torque value?

2371

How to see the inductance in a transmission lines

2144

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