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Electrical Engineering Interview Questions

What is the meaning of 'A synchronous motor floating on line'?

18763

how to calculate the no. of turns in secondary side of CT?

5064

Between Turbo alternator and Hydro alternator which one is more difficult to cool and why?

11191

Between AC generator(alternator) and DC generator which can be designed for high voltage and why?

3185

How damper winding in synchronous motor suppress Hunting?

Bhel,

23727

Which is stiffer between salient pole rotor and cylindrical rotor synchronous machines? Justify your answer.

12470

Which theory is used in the analysis of salient pole rotor synchronous machines? Who is credited for this developement? Could the same theory be used for cylindrical rotor synchronous machines?

5065

Why alternators are rated in KVA?

32063

Between rotating armature type and rotating field type arrangements which one is adopted for large rated alternators and DC generators.Why there is difference in the choice?

9915

What is the need for checking knee point voltage for CT's?

3317

ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

1154

what are the main problems that happen in an emergency light and how to fix them ?

4101

Without seeing the nameplate descriptions of a rotating machine,Is it possible to say which one is a motor and which one is a generator? How would you certain this?

4471

How the speed of synchronous motor changes with the variation of load?

4229

Why synchronous motor runs at a fixed speed? what is the name of that fixed speed?

12909

Un-Answered Questions { Electrical Engineering }

Testing report of Earthing of 3.15 MVa PTR.

1594

how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

1255

What is the difference between in Fourier series and Fourier Transform. and please tell me the difference between both of them and the why we use them in communication system?

1084

Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

1728

what is the difference b/w ground & virtual ground?

1346

please send 5yearje solved papers on my email himmatsinghnathawat@gmail.com

1033

I need bhel electrical test pattern & paper

981

What will be the effect if I use inverter as UPS mood?

1311

after how many spot we must chang secondry cable in portable spot welding gun?

1034

If not into production, how far did you follow the design and why did not you see it into production?

1210

WHAT ARE THE CHARACTERISTICS OF AN VOLTAG AMPLIFIER

1171

how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.

1262

Dry type transformers

942

Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.

1177

What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

642