Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is difference between 2 pole structure and 4 pole structure in transformer yard

Hospira,

5529

is there any chart showing the suitable cable size according to AMP and length ? for three phase motors

1090

My meter CT is 200/5amps Then my electrical meter MF=???please suggest

KFC,

2 2760

why is the power generator connected as star earthed or star earthed through reactance and what its features ?

1328

May I know how much values to be set for earth fault, over current and short circuit values at 11kv side? I have 11kv van 1250amps rating. Present it's taking load 80amps?

1157

What is the two pole structure?

Foxconn,

1566

why SCR use in power plant

Edison,

1 1886

Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??

1368

In general bus riser follows the bus section in SWGR. What are impacts if bus section follows bus riser?

1207

What is power factor why we should maintain the power factor unless what will happen

1448

Can we use Ccapacitive voltage transformer directly for metering purpose?

1330

What is the maximum load of 240mmsequre single core cable can carry?

1 1848

I want formula to calculate cable size as per load given in length & amp. I searched many sites but didn't right answer. Please reply me asap.

1178

What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?

1238

How calculated single phase induction motor req. Capacitor?

1277


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Un-Answered Questions { Electrical Engineering }

why surge protectetor work explain with the help of circut diagram?

1706


how current is reverse from its normal direction during the fault?

2143


What is the count of hvdc transmission lines in india?

737


Explain Circuit Breaker Trip Characteristics in detail.

1821


what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable

1673






what is the preventive maintence for ht panels and busbars and vcb abd acb's.

2027


Draw transformer phasor diagram.(full load,no load)

3828


For high frequency application we use which transformer?

1522


In diesel generator how AVR get voltage to excitation. And basic diagram DG EXCITATION CIRCUIT.

2918


Please define ohm’s law for a.c (alternating current)?

772


What are the advantages of autotransformer?

917


Why are lt windings placed near the core?

791


EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.

1955


Why choke coil is connected in series with starter in tubelight??why starter is connected in parallel to tubelight??

3063


How many types of interlocking use in screw type air compressor,make-Kaser(BSD MODEL)?

1782