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 the difference between neutral and earth????

4 6946

why transformer is rated in kva?

2 5599

why substation rating interms of 11 multiples???like 11kv/33kv iis there any special reason???

5 10729

our factory is going under construction mean time transformer 1000 kva 2 nos &load break swithch 12 kv & 4 nos 750 kva 2 nos & 380 kva 2 nos generator to be errcted.how to arrange earth pits &how to earth connect & neutral pit how to calculate in earth bit size.

2110

what is meant by excitation which supply is used whether ac r dc in the lab applications

1 3614

Why Cables are always circular and not square or rectangular?

3 7932

what is the use of CAPACITOR in CFL lamp?

Areva, Autopal,

6 14510

How many input terminal of single phase transformer.which is use for rural power distribution.

RMSI,

1 5509

what is mcb

L&T,

7 10157

WORKING PRINCIPAL OF MCB

TATA,

5 15369

11 KV Power cable end earth connection insulation got burned wht is the reson pl give the resons

2 5819

why the current is denoted by the letter 'i'

1 4658

why HT wire making noise?

3 6399

diff. between star, delta connection?

4 6845

In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..

1944

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Un-Answered Questions { Electrical Engineering }

what is data block in plc ? How the values of data block are written and read by hmi ? what is the difference between function and function block ?

3419

i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?

2060

in science exhibition how lamp can blink when you clap near the lamp ? thank you

1986

how can i change the rotation of the AC single phase induction motor and show me by diagram

1805

What are the protections for safe running of electric generator?

2268

what is the difference between earth leakage and earth fault?

2327

I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

3811

What are the advantages of the three-phase motor over single phase motor?

1090

What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?

2648

we specify current in case of feeder but in case of distributor voltage, why?

1812

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

2982

boiler is running in rankine cycle and deisel generator is....?

2051

Please tell me the earthing procedures adopted for the STAR-STAR 3 Phase transformer in india and give a better sugession for earthing

1954

if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?

1868

71ohm,111ohm,95ohm,179ohm in calculate the total ohm in series circuit

1683

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