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Electrical Engineering Interview Questions
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how we test a 3 phase motor on single phase supply....? HOW WE RUN A 3 PHASE MOTOR ON SNIGLE PHASE. supply for testing..? how we verify of a 3 phase motors 6 wire & name thame a1/a2/a3..b1/b2/b3 and c1/c2/c3 for connecting star delta starter ........i have only 1 phase supply ? help forum..........

Enercon,

1 4111

why hv winding is not placed near to transformer core

4 23317

How can calculate the daily electrical consumption of 7.5 HP motor, if the moter runs 24 hrs continiously. Also have to know about 3.5 hp chiller.

Wipro,

1523

my N-P 230 VAC at 3 wires but i haven't any voltages at phase to phase whither my supply is 3 phase, why i haven't received these line to line voltages ?

2 2742

what is the first step of dg shycroning ?

ABB,

2 3761

what is power factor?

MAHINDRA,

9 8254

how we can check that any motor is faulty may be single phase or three phase?

MAHINDRA,

2 7523

we touch other end of the tester supply, why do not get shock?

L&T,

7 12275

what is tha gap between the pole of 132kv line

2 4462

What sort of protection scheme do you suggest for the protection of a 10 HP motor?

Chevron,

1 7091

Why the capacitor bank is keeping on for electricity supply and keeping it off for generator supply

3 4579

what is the primary current in 415/415 v when secondry of dry type transformer is shorted.?

3 4893

What are the conditions to be satisfied before connecting two DC generators in parallel?

Bhel, Godrej,

9 13859

how to calculate the conductor size for certain KV transmission line and distribution line?

Hyundai,

1839

What is the difference between earthed & unearthed system?

HCL,

2 4780


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Un-Answered Questions { Electrical Engineering }

Can we test the alignment of End shield and stator of turbogenerator without rotor insertion? Also how to fix maintain the alignment at site installation?

1530


Why L.T.Cable voltage rating is 1.1kV,where as system voltage is 0.415kV?

1667


what is relay what is protection & contact multiplying relays where it is used function in brief

473


ow can i get certificate of competency as electrical supervisor and my diploma in electrical engineering from jalgaon.

1690


what is lumped and distributed elements?

1354






hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

1273


How LT megger works ?

1435


how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer

1441


WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.

1484


What is meant by celling voltage & current in excitor ?

1401


what is meant by 2 within a star in a voltmeter dial?

1325


how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

1519


in cvt,there are two windings,1a,1n and 2a,2n.in my one project i use only one winding i.e.1a,1n. the other winding is not in use, so i connect it in open delta and want to close it by ibsertibg thermal resistor. the output of cvt is 132kv/115/sqrt3. plesae tell me exact value of resistor, so i may close it to avoid the resonance phenomenin. send me answer on this email adress please. aetcon-po@aetcon.com

1874


What type of core material is used for metering C.T and protection C.T???

1543


How to measure the earth resistance value in a concrete pavement(flood light area)?

1494