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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

how to meas-our losses for L.T & H.T

2168

whether choke act as a voltage regulator in tubelight or not?

Bhel,

1 4823

How you will determine the volume of oil in a particular Distribution transformer.

1884

How to calculate the value of earth capacitance in a transmission line.

2361

what is the difference between contactors & relay.

2 5330

Spacing of Transformers ratings are 10kva,15kva,25kva,63kva,110kva,150kva .........so on Q) Why transformer are not manufactured having ratings in between or other than these standard ratings ?

3 5911

Define liftable weight of a transformer? Does the total weight of transformer include oil weight?

2495

ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?

2202

what is the MF if CT ratio is 500/5 and in meter specification is 3.75 REVS/KWH? Thanks and Regards Selvendran.N

1 3701

Why relay connected R phase and B phase.?

1 4390

which part of transformer heats up the most and why? windings, core or oil .

Lafarge,

3 7901

How do you know when the battery is fully charged?

ABB, Pricol,

6 12987

If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..

2498

Why is transformer a machine

Grasim,

1 2690

Why are the voltage levels in a powersystem are 11KV,33KV etc., why not 10KV,30KV?

2 4990

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Un-Answered Questions { Electrical Engineering }

WHAT IS THE FUNCTION OF SHORT CIRCUIT MAINTENANCE CT

2443

How to test lightning Arrester?

903

what is the ATS .And how it works.

1625

define hysteresis loss, eddy current loss and windage loss

1997

please tell me when we start motor without load in star or delta connection whose current above condition,pl write formula

2293

When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?

2093

which connection is safer series or parallel?usually which connection we prefer at home?

9996

what is the safety of voltage power transformer(2250KVA0

1988

What is the size of a 60 watt and 80 watt tubelight?

2164

Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used

2394

hi plz send me reliance placement papers..i.e electrical technical papers that have been asked in reliance test.

2965

WHAT IS MEANT BY DERATING OF THYRISTOR?

2965

I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

2450

what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker

5414

wow to calculate the transformer rating(KVA)

2269

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