Electrical Engineering Interview Questions
Questions Answers Views Company eMail

wht do u mean by constant flux linkage theorem ?

3 17162

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 4840

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

7 4648

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 3720

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 3349

WHY LINK NOT A FUSE IN AC CIRCUIT

3 3761

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

3 33326

what is impedence in transformer

2 2888

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

Voltas,

2 22114

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

Essar,

1 2025

domine+aptitude test means?

2 2666

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

6 8585

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 8710

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

4 3033

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

910


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Un-Answered Questions { Electrical Engineering }

How capacitor improves pf

621


wat is the current produced in a 5000v megger? when the positive and negetive terminals are touched on our body get s shock?

970


Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

822


What is expention fastener (Fan)

993


EXPLAIN THE ESSENTIAL FACTORS WHICH INFLUENCES THE CHOICE OF SITE FOR A HYDRO ELECTRIC POWER PLANT

927






WHat is the requirement of installing FAST ACTING EARTH SWITCH in GIS and how is that integrated with protection system. How and when does it operate?

632


what is upper impedance and lower impedance of a distance relay

1094


What is star-delta transformer?

99


what is the difference between earthing and unearth

1829


How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...

943


anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

897


Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

785


how to calculate the torque of a motor?

1047


How many energy meters can be connected on a 15VA Voltage transformer. please send a calculation sheet.

1001


DEFINE BREAKING CAPACITY OF BUSBAR & HOW IT IS CALCULATED?

4200