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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.

KOTC,

1662

If auto trip is operated, can you close the breaker.

KSEB, L&T, Siemens,

2 3167

Why you are switching off arc protection mcb when you are taking shutdown for lv board.

KSEB, L&T, Siemens,

1696

Why it is necessary to isolate fire fighting when you are taking shutdown for lv board.

KSEB, L&T, Siemens,

1634

How you give clearance to a spare feeder.

KSEB, L&T, Siemens,

1695

How to put breaker in service / test position.

KSEB, L&T, Siemens,

1 3631

Operation of isolators.

KSEB, L&T, Siemens,

1894

Load transfer in 11kv double busbar switchgear - operation.

KSEB, L&T, Siemens,

1958

How to check the cable fault / hv test of transformer cable.

KSEB, L&T, Siemens,

1879

How to do maintenance of transformer feeder.

KSEB, L&T, Siemens,

1863

How to do maint. Of busbar.

KSEB, L&T, Siemens,

1 4322

Single line diagram for dbb (double bus bar)system.

KSEB, L&T, Siemens,

1943

Which type of arc protection devices used.

KSEB, L&T, Siemens,

2 4221

How earthing of switchgear system to be done.

KSEB, L&T, Siemens,

1932

What are options used for earthing the switchgear.

KSEB, L&T, Siemens,

1871

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Un-Answered Questions { Electrical Engineering }

Which standard we are following earthing resistance test

1416

how to calculate compresor capacity?

2190

What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

1914

There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

2099

Why 15Amp. MCB is suitable to carry load of 1.5Ton Ac please Explain?

2170

what is errection pcbs?

1917

critically criticize the application of ring main unit in power system

1450

in dc series motor if field wdg is shorted then

1861

How to calculate VA rating for CT or PT or Control Transformer?

2849

how can i improve the power factor in domestic (230v)

2064

How to calculate cable size in HT AND LT

2021

what is ps impedance test

2130

why the NGR (neutral grounding resistor) always OFF during DG off?

3478

What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.

2066

If we are given a 10 amp cable type and asked to calculate the number of cores used and the thickness of the cable, how do we do it?? please help...urgent!! i hope the question is clear enough!!

1830

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