Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Uses of induction motor

NTPC,

6 25185

I want Primary side delta and Sec side Star connection transformer . but i have received Star - Star transformer ,shall i use the same transformer by giving the only 3 ph on Primary side without Neutral connection on the Starpoint.

5 7092

Why current flows in nutral? As per theory there should be no current in 3 ph explain.

Bhel,

11 11991




What is the difference between phase current & line current, how both can be measured in star and delta system

MIT, Doshion,

9 67443

Difference between ups

Emerson, Tata Power,

32 72557

What is the formula for finding fault level of generator?

11 26385

I am mechanical engineer,I need Training in Electrical & Electronics ( i.e. three days workshop training ) Where will I get the same Please suggest?

2 2391

can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

NTPC,

839




What will be the average KVA rating of Auto Transformer for 75kw 415V , 3phase induction motor

2 3563

If the capacitor bank is installed in switchyard say 132/22kv then on LT side say 22kv/0.433kv is it necessary to install capacitor bank for maintaining power factor. if pf is maintained on HT side then will that be maintained on LT side as well.if not then how&why??????/ please explain...........

MacLellan,

3 8100

what is relation between vector group of transformer and its load hormonics?

Sanmar,

1 1475

What are all present producing cost of Per KWH of various Fuel?

Sanmar,

1262

Why the generator rating in kva

Genpact, DLF, HNG, SIPM, CompuCom,

32 82044

Please nybody say, weather the result of Bharat Oman is declared or not? Probable date of declare???????

629

wat s the difference between diode and capacitor

TCS,

20 15388


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Un-Answered Questions { Electrical Engineering }

plz explain the auot-reclosing circuit in electrical engineeing

1084


How to measure the Harmonic Distortion of UPS ie THD?

954


how net resistance islow in star connection and viseversa in delta connection...? if anybody could explain in detail it wud be helpful.

392


What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?

324


Single phase and threephase power calculation

805






What is the function of retrip in busbar?

199


how to test reverse power trip?

1463


What is the kiosk parts, about them and their functions ? If anybody have some PDFs files or details about this plz send it on tawhidfaisal@Yahoo.com

546


WHAT IS DEGREE OF COMPOUNDING IN D.C MACHINE MEANS? HOW TO READ THE OPERATING CHART FOR ANY ELECTRICAL MACHINES?

1723


what is the role and fuction of automatic transfer switch in rotary ups

686


Instrument connected to a single phase supply

341


State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor

1165


model question paper for supervisor trainee

695


in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4

773


What should be the voltage between Neutral and Ground in secondary side of the step down transformer (230 V to 110 V) with no load condition?

792