Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Transmission line design. Say, I have a 1MVA generator and 2 transformers that will have the same load. What would be the proper rating of the trasformers? Is it safe to say, that I will simply divide the total rating of the generator?

1 3810

what composit error,ratio error,phase error in CT and PT??

4 38243

Why Aluminium wires are used for High tension(HT) lines? 11 KVA/32KVA & aboue

6 16903

srij i need the relationship b/w KW AND KWH and with an electrical example. plz send if u can?

4 6322

What is the percentage loss for aluminium wire for HT line more than 11KVa

2128

When charging a 20 MVA , 33kV/6.6kV transformer through regulated (0-6.6 kV or 0-33 kV) source on no load , what will be the maximum current drawn by transformer from source and what sould be the source capacity.

TATA,

5 11700

I am working on a 11KV system with fault current of 40KA for 1 second. I have selected 2500MVA 11/0.433KV transformer. How can i find the impedance value for this transformer? Please help me.

PPL,

2 6889

what is short circuit force ? How to calculate it for Panel?

Bilt,

1 6208

what is the difference between high impedance REF & REF, same high impedance differential protection & differential protection for Power transformer?

1 9592

to improve the existing power factor whether capacitors have to be added in series or parallel.and why

3 6914

how to calculate the capacitor rating for improving power factor

L&T, Property Solutions, Synergy, TAFE,

10 23626

why earthing is not required on transformer prymary winding side ???

Genpact,

13 27482

want to know about DMRC

4 9249

why the amount of voltage generated at power generating stations is 11 KV only....?

3 5295

In a company has been installed an analog amperemeter, this company was suplied by generator X, there is no problem in the ampere meter, rigth now this company's supplied by generator Y then the pointer in amperemeter vibrating. What happened? Why? Thank's

2 4400

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Un-Answered Questions { Electrical Engineering }

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

1722

i am going to attaned the engineer (disign)iterview at HAL please give me duid line

2282

what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.

2053

what is breathing?

1813

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

2064

which type of cabel

2404

Explain advantages of storage batteries

1102

is it possible to test of bus bar in high rise building without completed full floor ?

1695

DG cranking voltage?

4759

why current is constant on d.c?

2091

-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.

2100

Difference between rating factor of cable and derating factor of cable?

1643

What do you mean by power transformer?

1077

block diagram of 2 ups system connected in hot stand by mode?

8058

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

2097

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