Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the thumb rule to know current carrying capacity of copper conductors of different size.

1 1831

advantages of vvvf drives over non vvvf drives for EOT cranes

HEC,

2 10904

how calculate the current faut level

ABB,

2 3637




what is power

ABB,

6 4235

What is the difference between single phase, 2phase, and 3 phase motors?

2 5556

what is single phase motor?

5 2747

what is 2 phase motor?

4 3530

what is 3 phase motors

AXA,

1 1453




what is the difference between single phase, 2 phase, and 3 phase in electric meter?

1 4386

Please help me.What are the difference between two wire, 3wire, and 4 wire in electric meter?

3 2326

what is the meaning of WYE and DELTA in Electric meter?

2344

what is th basic difference between a d latch time line and a d flip flop time line???

692

keeping in view of parallel operation which of the 3 phase transformer connection are possible? a)delta-delta to delta-star b) delta-delta to star-delta c) star-star to delta-delta d) delta-star to star-delta

Ecil, Siemens,

4 12941

How does a television work?

Siemens,

833

What kind of battries are generaly used with Disel Generator?

Exide,

1 3298


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Un-Answered Questions { Electrical Engineering }

in basic 2 phase will short means tripping the power but spot welding 2 phase shorting but not tripping it will welded why.....(Q)

652


can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

839


What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

869


hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites

779


1sq mm dc powr cable can carry how much dc currnt

610






how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

372


what is the excess air in furnace

760


How to megger test 11 kV cable and the acceptance IR value

1586


how to calculate knee point voltage for pt?

687


What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.

2237


TELL ME WHAT IS INDUCTOR AND CAPACITOR WHAT IS IT BASIC OPERATION ANDFUNCTION?

741


Why efficiency of generator is higher than motor at a particular load?

820


How does HT work & Voltage required?

858


how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.

790


What is I to C?

787