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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

wht do u mean by constant flux linkage theorem ?

3 20775

when running 2 nos 450kva dg sets in parallel operation ,in one Dg set power factor and Kvar going to lagging and ampere suddenly going high,please give me suggestion to correct the same.

2 6891

How to Calculate the current drain in the battery (1.4V) for the 2mins time period?

7 8900

Why does the phase voltage of two healthy phases become equal to the line voltage in case of an ungrounded neutral 3 phase star connected sytem when a single line to ground fault occurs ?

2 6202

what is the best electrical system i.e substation sytem of 11kv/.433kv for a township. if township have 300nos substation of 11kv. we have to go G.O.D.O. fuse unit or Compact Substation Unit. please reply Asap.

2 5375

WHY LINK NOT A FUSE IN AC CIRCUIT

3 6224

What is the Different between CT Class-0.2 & Class-0.2s ?

3 39144

what is impedence in transformer

2 4913

How to Calculate IKW(input kilowatt)of a Chiller plant

Voltas,

2 25368

Whats parameters which we keep in mind when grounded any electrical machine.

Essar,

1 3815

domine+aptitude test means?

2 5008

What happen if 1200KW/1500KVA alternator runs at no load and high R.P.M.for one minute?

6 12257

I BOUGHT A HAVELLS ACCL WITH GENERATOR STOP FASCILITY(i.e- BASICALLY IT IS A AUTO CHANGE OVER SWITCH) FOR MY HONDA EXK 2000S HOME GENERATOR (WHICH START IN PETROL & RUN IN KEROSENE). ACCL HAS 8 POINT. 2 FOR MAINS(PH & NUE), 2 FOR LOAD, 2 FOR GEN AND 2 FOR IGNITION POINT(X1 & X2). THE IGNITION POINT IS SPECIALLY FOR AUTO ENGINE STOP WHEN MAINS POWER RESTORE. I CONNECT THIS X1 & X2 POINT TO THE GENERATOR STATER MOTOR & EARTHING POINT. BUT WHEN MAINS FAILS THE GENERATOR COULD NOT START, BUT WHEN DISCONNECT THOSE X1 OR X2 POINT, THEN THE GENERATOR START. BUT WHEN MAINS ON THEN THE GENERATOR SHOULD START, AND WHEN I OFF THE MAINS THE GENERATOR AUTOMATICALLY STOP. PLESE HELP ME HOW I STOP THE GENERATOR AUTOMATICALLY WHEN THE MAINS RESTORE.

Honda,

2 11397

what would be the earth to neutral voltage in industries? if it is not main Taine then what will happen?

4 5918

what happen if generator of micro hydro running at only a small percentage of its capacity, as a comparison, if the diesel generator that runs on only a fraction of its capacity there will be a wet stacking

1894

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Un-Answered Questions { Electrical Engineering }

what types of electrical & mechanical test conducted in switchyard?

2144

What happen when neutral point connected to core balance current transformer? (Neutral point of an alternator of a 180KVA DG. Neutral point connected to CBCT means enter to the CBCT)

2225

Do you need any help with FEWA Electrical Supervisor exams?

949

When we giving the 3 phase supply to ups system how to coming netural?

2046

how we do Vector group ,magnetic balance and tap changer test in Transformer?

2420

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

1907

How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?

3999

what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)

1976

why US countries maintains 110v and 60HZ

2125

how to check regenerative load in drived motor

2163

What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating

1477

Air circuit breaker safety

1345

Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

2079

what is lrs tank water resistance.

2489

Why auxiliary transformers are not connected in parallel in primary stations?

1377

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