Electrical Engineering Interview Questions
Questions Answers Views Company eMail

wht do u mean by constant flux linkage theorem ?

3 16935

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 4783

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

7 4531




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 3618

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 3283

WHY LINK NOT A FUSE IN AC CIRCUIT

3 3674

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

3 32974

what is impedence in transformer

2 2821




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

Voltas,

2 21924

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

Essar,

1 1982

domine+aptitude test means?

2 2593

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

6 8501

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 8607

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

4 2967

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

882


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Un-Answered Questions { Electrical Engineering }

how to size H.T & L.T Panel ?

1011


Define stepper motor. What is the use of stepper motor?

86


Transformer cores are laminated in order to A simplify its construction B minimize eddy current loss C reduce cost D reduce hysterisis loss

2091


what about electrical pannel.? What is meant by plc pannel.?

1313


Work done in a free expansion process is

99






WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???

1005


explain wiring system

1458


How will you utilise electrical power? You can start from the generating station.

895


What are the electrical engineer roles and responsibilities in chemical plant?

563


What is an order of a system.

70


Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.

2711


How a capacitor discharge weld power supply works? what is the use of a pulse transformer?

1036


In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.

511


transformer phasor diagram under load explain it?

1076


STATE WORKING OF VACCUM CIRCUIT BRAKER?

934