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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How to select the gauge of wire for winding of motors? How to select number of turns for winding of three phase induction motor?

npcc,

2740

Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

2088

why do we provide metallic enclosure to bus duct and then ground it?

1 4663

how to interlock 3 incomer-ACB,1 buscoupler ACB,... pls answer this question and if possible send me the ckt diagram..haifriends2910@gmail.com

2910

Why we use 4-20 mA Analog signal for the PLC input? Why not 0-20 mA? Why not 5-25 mA?

2903

If any cable burnt how can we identify it burnt by high current of high voltage?

2450

Why we use Delta connection in the secondary side of a High Voltage transformer?

1 3829

What is the function of NER and NET?

Asian Paints, GHH RAND,

2446

what are upstream faults and downstream faults in power system

Sreetech,

2 10235

What is the difference between surge arrestor and surge capacitor?

Shreem Electric Ltd,

2 10091

why we used dc supply for field in dg set

Hindusthan National Glass,

2389

in catridge heeter watts =110, 260 v , i checked in multimeeter meeter shows 50 ohms but oms law r=v square /w 260*260=67600, and 67600/110=614.5 ohms how to caluclate exact ohms in heetre s

2 4132

What will happen when we will connect lamp in between phase and earth.

3 5333

function of apfc pannel

3 5242

Where is the best place to mount distribution panel in a house.

Wantro Technical Services,

2094

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Un-Answered Questions { Electrical Engineering }

What is open delta Xformer? It's adavntages & Use?

2232

what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?

2073

How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.

2376

What is use of starter and choke in tube light

1772

What are the various types of rotor used in the alternators?

1071

can u give me a brief idea about power line carrier communication ??

1987

what is a power factor?

1812

What is the general power factor & min. power rating of TV,LCD type TV, CRt type TV, Scanner, printer?

2064

what work will do diffrential realay DG set

2894

and gate circuit diagram,amplifier circuit diagram

2069

What are the types of power in electrical power?

1212

show the single line diagram of star delta starter with single phase preventer

4641

Where servomechanism is used?

1111

what is harmonics? what are the factors it will depend upon

2027

I WANT HOW CALCULATE TO CABLE FOR WELDING PLANT ?

1830

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