Electrical Engineering Interview Questions
Questions Answers Views Company eMail

wht do u mean by constant flux linkage theorem ?

3 16845

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 4754

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

7 4449




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 3553

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 3254

WHY LINK NOT A FUSE IN AC CIRCUIT

3 3641

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

3 32714

what is impedence in transformer

2 2786




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

Voltas,

2 21805

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

Essar,

1 1963

domine+aptitude test means?

2 2552

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

6 8457

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 8559

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

4 2932

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

865


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Un-Answered Questions { Electrical Engineering }

if i get a drop in my 1st year and the i clear my 2nd year and 3rd year all clear and i dont have any back logs so can i be able to sit in campus selection??

775


What is the tube exial fan?

919


i applied for the ap transco please forward the freqventley asked QA

935


how to check ac servo motor

1073


How to calculate the current of Highpressure Mercury Vapour Lamp?what is the basis?whether we have to consider power factor or not?

982






Why 1/3 is used in symmetrical components?

676


i am going to attaned the engineer (disign)iterview at HAL please give me duid line

1154


Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.

982


i have 3500 amp load and select current transformer and perches.how i calculate .please understand

1138


What is core CT & it's function?

961


How LT megger works ?

916


HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?

997


dg earth connect only in the amf panel or not why

981


What are the special cables required for explosion proof wiring?

2077


Define gain margin?

48