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 will happen when square wave is fed into input side of 3kva transformer and what you will get on output side.

Blue Star,

3 7008

Whether earthmat designning is done only for sub station or it can be done for multy residential complexes also? What is the size, type & arrangement of the earth grid to be done?

1 3364

Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

3163

Why the outpet og DG is 415V not 440V?

1 6475

What is the meaning of EDO in DG panels?

Bajaj,

3 7871

what is the use of interposed & reverse voltage transformer

Anjani Steels,

2 15870

Why we are not placing c.B 's btwn generator and transformer.? what happens when generator gets disconnected from transformer when it is running @ full load?

Areva,

3 6664

Instead of single phase(220), if apply Phase to phase supply (eg: for lighting fixture). what will be the power formula? what will be the volt and current value? please explain me with some example.

1 3139

what is phantom load, Give any example

2 5480

what is the impedance voltage of transformer?

AVI Enterprises, MacLellan,

1 4161

11kv alternator commissioning test?

2 14850

What is an alternator impedance value?

Orchid,

2902

Diff between power trans and generating transformer?

1 4020

What are the tests to be conducted in the electrical installations

1 4080

pls send me some of the solved question booklet of Junior Engineer -2 (ELE) in RRB

RRB,

1 4515

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Un-Answered Questions { Electrical Engineering }

i m doing DEEE in part time,can i join regular cources in BE,,IF i join what the cources can i select like (civil,ece,IT) ,,kindly advice

2163

What do you mean by reach and reach the point of the relay?

1310

how generator load test is conducted?what are the steps?

1648

What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

1511

What are the main advantages of generalized error co-efficients?

1219

Salient pole alternator is more stable, why?

2769

What is the general power factor & min. power rating of TV,LCD type TV, CRt type TV, Scanner, printer?

2115

Differentiate between real and apparent power?

1213

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

2172

what are the breakdown voltage rating of mini- curcuit'transfarmer!

2216

HOE WE CAN IMPROOVE BY USE OF CAPACITOR

2009

Classify drilling machines.

1205

why the electrolyte level in lead acid battery is maintained 2.5 cms above electrodes?

1924

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

3433

How to calculate the efficiency of Turbo Generator(Alternator) in general....?

2970

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