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 static excitation and dynamic excitation of synchronous generator,scr excitation is a brush or brushless excitation?

6 30725

Sir, plz tell me the relation b/w KW and frequency in Variable frequency Drive?

2 4917

sir, plz tell me how much kvar capacitor required for 1000 amp or 500 Kw load ? what is the formula ?

CSPL,

14 36876

During he starting up of the motor, the upstream's MCCB (350A) always trips due to the UVT relay activated. Can Star-delta starter use for a 20kW Motor (For a powder mixer machine) cause voltage-dip in the supply line voltage? If so, what are the recommended solution to eliminate/reduce the transient voltage dip in the line voltage?

4 6840

Hod do u calculate cable size for underground laying and the factors effecting/influencing it??

Kuwait Oil Company,

4 15161

sir pls send the je exam - 2008 and other model question papers..

2031

what is the criteria for selection of conductor used for ehv ac electrical dischrge

National Productivity Council,

2040

In an LT pole, the line voltage is 415V. How is it converted to 230V into the house via the service cable?

10 17950

we need a ntpc previous papers

1895

why do we lay up the core of a cable?

1982

how does the thyistor work in dc drive?

1946

differentional compound gernater used for wielding porpose. why????????//

2 4161

Sir, plz tell me how droop setting is done in parellel operation od DG set ? please give practical example ?

Honda,

2101

HT/LT TRANSFORMER TEST?

5833

HT/LT PANEL TEST?ALL TEST

5829

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Un-Answered Questions { Electrical Engineering }

What is meant by system?

1028

what is acceptance test in electrical engineering.

2120

How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.

2045

how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???

1869

In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?

2146

Give some differences between open loop and closed loop?

1071

what exactly commisioning work does in electrical site work... LT side?..

1906

what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth

1352

Can u tell me design of switch yard

2129

Explain and give me an example of a time when you had to explain some new procedures to your co-workers for quality service delivery, how did you go about it?

1932

How to test IR testing & magnetic balance test

1955

Define relative stability.

1018

What are the internal and external faults?

1059

how much GROUND & NEUTRAL VOLT maintain in data center.

2008

i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value

1890

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