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 30912

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

2 4999

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

CSPL,

14 37286

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 6968

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

Kuwait Oil Company,

4 15312

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

2076

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

National Productivity Council,

2097

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

10 18207

we need a ntpc previous papers

1929

why do we lay up the core of a cable?

2014

how does the thyistor work in dc drive?

1982

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

2 4242

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

Honda,

2134

HT/LT TRANSFORMER TEST?

5885

HT/LT PANEL TEST?ALL TEST

5867

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Un-Answered Questions { Electrical Engineering }

How many capacitors using in LT panel as per Govt rules?

1972

how you will decide the distance between the power transformer and its fencing

1973

what is the use of the circle diagram

5615

Is it possible to make a 5P10/ CT Ratio 50/1A Burden 5VA

1722

If I have 3 essential main switch board and 3 incoming electricity ,but only 1 genset running is that possible.

1639

Why a tesa lamp is glow between two phase?

2007

what is the advantages og idmt relay over magnetic relay??

4246

what is difference between speed mode and torque mode in motor?? explain in simple words please.

1596

what is the IS foe lightning arrester?

2168

What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

1848

in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.

1879

What are the conditions to be satisfied for parallel operation of dc generators?

1097

For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?

1973

plz explain the auot-reclosing circuit in electrical engineeing

2484

what is sustainable current of any conductors . a bare busbar or pvc cable has different sustainable current .

1785

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