Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how can we chack a capacitor in acircuit

2 3058

how can we chacke adiod in a circuit

2 2417

what are the different pre- commissioning tests performed on distribution transformer, power cable and switchgear?????

Reliance,

1 3777




what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?

Reliance,

1085

what is power factor ?

KSEB,

12 10309

difference between ac and dc generators

4 5494

name 3 measuring instrument used in transformers

4 3807

what is JE exam?

887




I am an electrical power engineer and arranged power system for a data center, I installed MCB, ELCB and erthing system TN-C-S. But some times several ELCBs Disconnect circuits at the same time! what may be the reason? (the ELCBs are 25A ,30mA)

9 6768

what is the disadvantage if earth is connected to neutral

6 7040

If we connect the capacitor banks for DG set for maintainig the power factor, it will effect to alternator windings??????????

7 6781

How can calculate the efficency of the rectifier. input 240V AC, current 5 amps,P.F 0.98, Output is 54 V DC,62.6 A.

10 19343

In case of 11kV dual delta bank what are the recommended protections with specific CT / VT requirements? The capacitor bank is to be connected to the main 11kV switchgear from where the H.V.Motors and auxiliary 440V loads.

1 1363

whatis the difference between electrical and electronics?

11 8506

Hai I have 2500KVA,Transformer,13.8KV/380.DELTA/STAR.How much load that I can take interms of current?How can I calculate also when I have loads in KW?

L&T,

10 10563


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Un-Answered Questions { Electrical Engineering }

If symmetrical fault occurs at the terminal of a synchronous motor then how the motor will act...explain it..

835


HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER

673


how much cable size required for 70 kilowatt load.

28


how i chosse capacitor bank if my energy meter is 48 kvr? tell me capacitor bank chossen formula?

1183


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

1230






Why Neutral Isolation is required?

996


how can we design robots

761


Currently what is the highest capacity (MVA) of SPPg generator available in the market?

601


Why to keep capacitor bank off while generator running.

485


when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

1097


what is breathing?

472


What is the use of mc( moving coil) in dc voltmeter and dc ammter and what is the use of ( moving iron)in ac voltmeter nd ac ammeter

1500


how to interlock 3 nos MCCBs using under voltage coil. please provide me circuit diagram?

1339


Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.

844


How much no load current of synchronous motor

867