Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why is a plain induction motor unsuitable for wide speed control?

1729

Distinguish between neutral earthing and equipment earthing?

7 27257

whis is the formula of converting KW into HP ?

14 28085

how to calculate compresor capacity?

1586

What is the "IS" for Rising Main?

APTransco, NTPC,

1 4548

Which type of drive is advantageous AC or DC and why?

5 5313

parallel operation for tansformer which condition fill fil for that

ITC Infotech, Suzlon,

11 9522

how power trnafor from 1 point to another point in bus bar ya transmission line( voltage trnasfer from 1 point to another poin)

Suzlon,

1413

Why the wave trap is put in Y phse only in switchyard?why not in other phases?

IAG Automation, REL,

1 6877

What is switching over voltage?

MEIL,

1 5331

what should be distance between two electrical earthing pit as per i.e.e

Badve,

13 94758

1-What is the difference between absorption factor and polarization factor in insulation resistance test in transformers? and why we inject until ten minutes to get polarization factor?

1 5649

2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?

1509

3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?

1324

4-Why we measure the insulation resistance of main core and frame in spite of that must be connected with ground before energize the transformer?

3 9832


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Un-Answered Questions { Electrical Engineering }

how will we calculate the copper wire load..

1389


what is meant by vector group of a transformer? How can it be derived?

1449


how will calculate the safe starting current of 3-phase squirrel cage induction motor?

1378


electrical ques

1618


1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

1178






What is the use of Surge Capacitor in LAVT?

12755


a simple c++ program to calculate simple interst with its data members as private

1315


For high frequency application we use which transformer?

1275


why magnetising curve not start with zero voltage?

1766


how does an encoder work???

1936


What are the advantages of instrument transformer?

567


What is the difference between resistance grounding system and resistance earthing system?

566


What is s-domain and its significance?

657


what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

1546


What is the function of attenuator in cro?

642