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 the diameter of electromagnetic field around a 11000/415v transformer ? Dose it affect people who live 3-4 meter beside it?

2127

Why 50hz and 60hz frequencies are used by the world, why they are not taking 55hz?

3 8543

what will be the magnetizing current in the testing of 27 MVA transformer?

1 4661

when we start the tube light, then it takes initially 1100 volt, after glow it takes 120 volt?(when we give 220 volt a.c.)

3 6591

how many testing is necessary for 27 MVA transformer?

1 2409

why does the time taken for fuse to melt is longer as the wire length increases?

1 3781

PLEASE INFORM ABOUT THE IDEAL TEST RESULTS OF MAGNETIC BALANCE TEST OF TRANSFORMER 33/11 kv DELTA-STAR T/F

2210

what is meant by phase &line voltage, how its differ from each other ?

5 12823

what is synchronizing panel & its working.

3 8521

One of our gas turbine generator unit "1st stage rotor ground fault" alarm was occured several times. we tried to measure some voltage vulue ground fault protection relay (UNS3020a made by ABB and we measured the value of: Ground: 0.9VDC 5V: 5.8VDC 24V: 23VDC u+: 300 – 350mVAC Rf1: 17.5mVAC Rf2: 17.6mVAC The unit still running and the alarm was reset. As of 6pm yesterday and unitl now no alarm happened again. I our protection relay was defective?

1 4488

Is a DC Transformer Possible? if Yes, Then Why, if not Then Why?

9 18664

when meggering a 3ph,480v oil reservoir heater on a regen gas compressor, why do I get a reading to ground when meggering phase to ground? shouldn't it read opened or is there something that makes it read closed? on the same heater, when ohming, it reads open. thanx

1 5382

Please give me the formula stating relation between AC & Dc.

JP Group,

2 8511

how to stop oil leakage in power transformer.

APGenco,

1 5887

what is meant by vector group in transformers? wy we r using that?

1 4836

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Un-Answered Questions { Electrical Engineering }

How shall i select the value of capacitor or inductor in a system?

1900

what is load despatching

2224

explain comutator action in detail.thanks

2255

The loads are connected with phase and ground then why current flow as the loads ?

1966

i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT

1954

What is meant by vector group

2538

how to calculate percentage impedence at 75 deg C at normal tap

2260

armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?

1909

Brief working principle of stabilizer,application & safety precautions

5690

state the disadvantages of carbon filament???

2940

Some times to change of DOR of a motor, interchange of R & B is not effected and RYB take same current, but interchange of R&Y is effected ie change the DOR. My doubt is what is the problem in motor and how it is happen.

2001

What is the effect of positive feedback on stability of the system?

1652

if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .

1960

HOW MANY TYPES OF FUSE?

2097

How much current will a 5 HP delta connected motor at no load will take?Is tat need a starter

7759

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