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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

If Two Generators are working parellel in a network and suddenly the field of one Generator get weakened What will happened if there is no reverse power relay fixed in that Generator panel????

7 10582

What will Happened if the polarity of CT is changed?

13 40822

Why we are checking the vector group & turn ratio of Xformer while PM?

1 4273

What is the knee point of voltage of CT?

NTPC,

5 11106

In which reason, one end of CT secondry get connected with Earthed? Normaly S1 of CT. Why????

1 5729

What is an Isolation Xformer? What is the use of it?

2 8032

What is the different between Earthing & grounding?

1 4960

how braking & making capacity of circuit breaker are calculated?

Bhel,

2269

If we feed 230V ac supply to a full wave rectifare, what & how much will be the out put voltage?

3 6123

What is thresh hold value of current?

2106

What is negative phase sequence?

Hindalco, Universal Associate,

7 92257

What is harmonics in AC waves. How it is generated? How it will effect the system network? how can eliminate it?

2 5043

Waht are the protection should be use in HT/ LT side of the same Xformer?

1 4175

How to calculate the phase to phase clearness of HT /// LT bus bar?????

2042

HI, I want to buy a new Xformer to my plant. what are the main parameter should I check ( Xformer rating is 16 MVA)

2 4264

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Un-Answered Questions { Electrical Engineering }

in my working site. momentary jerck in electrical supply ocurred frequently which cause of multiple losses in our electrical equipements. how can we protect our electrical machines and equipements in this situation.

3424

Please brief working principle & construction of permanent magnet AC Servo motor

2187

I Have 3 Phase 10 KW AC Alternator i found one phase weak, so what will be the reason & what action shouls i take to rectify the same.

2029

how many stairs have you climbed while you were coming

2147

what are the breakdown voltage rating of mini- curcuit'transfarmer!

2132

I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

1844

Define the overload capacity of the motor?

2006

Draw a SLD of HT distribution EB grid up to users Transformer?

6171

What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV

1998

What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?

1063

What is rotating magnetic field?Discuss elaborately.

2602

Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

2101

sir plz send some previous year questions of jspl.

1896

"TRANSFORMER MODELING AND ANALYSIS" MEANS WHAT AND WHICH TOPICS U READ IN THIS

1846

What is the differance between 2 dc motors of armature voltage 660 v and 440 v?

1943

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