Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why 6.6,11,22,33,66kv? what basis they have considered?

5 3707

HOW CIRCUIT BREAKER RATING CALCULATED?WHAT ARE THE PARAMETERS CONSIDERED?

5 11350

Wat is da difference b/w neutral earthing and unearthed system?

2 2903

what is the purpose of NGR?

Assam Electricals,

25 64317

what is residual current....

1 1581

what happen "when Dyn11 is parallel operation with Dyn1"?

9 9541

Grid fault level [KA]?

642

Earth Resistivity

2 2973

on what priciple transformer works on?

5 2855

how to calculate the capacity of the AC motor

TATA,

1 2843

RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV BUT WE KNOW THAT LIGHTENING ARRESTER IS USED FOR OVER VOLTAGE PROTECTION SO WHY NOT THE RATING OF LIGHTENING ARRESTER BE MORE THAN 11KV ???????????????//

Hakel,

5 26127

what are the type of motors

3 2497

I have cleared IOCL written exam(Electrical). My intv is on 6/9/2008.can anyone guide me & tellme abt intv questions.

IOCL,

5 4184

how dc ct works?

3 3397

what is the difference between inverter and ups & what is the earth resistance for ups , if its high why so

3 3710


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Un-Answered Questions { Electrical Engineering }

1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?

432


Hi I'm doing my MBA(3rd semester).I applied for the post of ET conducted by BHEL the last year.I cleared the written and lost in personal interview.Again I wrote the exam this time and cleared the written n yet to take the personal interview.Shall I disclose in the interview about my studies.What shall i say if they ask about my change from studies to job

546


I want to know the 'Test voltage' for Tandelta testing of 3.3 / 6.6 / 11 KV Motors. Please explain

324


give 5 differences between relay and contactor

496


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

208


How to decide CT & PT ratings for a given transmission line carrying some rated voltage?

736


How is the percentage impedence of a transformer fixed at design stage???

454


how test transfomer(3 phase75kva) by megger

549


How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.

352


if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.

550


what a function diesel generetaor turbo charger & turbo charger is more heated explain reason ?

660


Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?

287


Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

608


How many kinds of E.L.C.B and how to work E.L.C.B

494


why on delay timer used for fully automatic star delta starter?

130