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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

present we are having 0.8pf but I want increase it up to 0.99 so what is the formula for it and how can i calculate?

ABB,

3 7098

We have two parts in generator, electrical & mechanical. how it works?

TATA,

1965

how to convert psi into kilo pascal? what is the suction pressure & discharge pressure of chiller?

1 4056

how air lock will be removed from generators, how it happens?

ABC Engineering,

1 8886

what is the d/f b/w dol & star delta starter.

2 4977

we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards

2009

what is the principal of transformer?

2 5750

What is EHT(Abrebiation,Function,Voltage Regulation & how it works?

Adhunik,

2 5678

In what voltage EHT works(133/132/33/66kv?

Adhunik,

3 6484

How does HT work & Voltage required?

Adhunik,

2268

what is bus coupler, where it used.

Diebold,

14 85651

What is fault level? How can be calculate the fault level?

1 4334

How to calculate cable size? How to O&m of vcb?

2378

sir what is the minimum IR value of 11 KV alternator?

Kirloskar,

4 15134

sir what is the purpose of SF6 in HT breaker and what is the pressure should be maintain in the breaker?

Kirloskar,

2 7717

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Un-Answered Questions { Electrical Engineering }

If only R Phase is connected in 2 pole elcb, n is not connected than it will work or not in ground fault.

1436

briefly explain principle of resistance welding

1848

IF alternator SCR value will be high means what happen in alternator efficency at operating power factor of 0.8

3863

An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another

2063

Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

2216

what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?

2427

What is different between resistance grounding system and resistance earthing system?

1151

I want to know the 'Test voltage' for Tandelta testing of 3.3 / 6.6 / 11 KV Motors. Please explain

2265

How to assume answer to electrical questions

1533

WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB

1907

HOW TO REDUCE POWER PLANT AUXILIARY POWER CONSUMPTION?

3416

i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

1977

Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?

1825

Safety of dry type transformer

1968

What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

2314

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