Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the function of commutator in dc motor?

3 3293

why odd hormonics only will effect the power system.why not even hormonics

1 817

Can any body tell me what is use of END OF LINE RESISTOR in fire alaram circuit?

2 4772

what is different between DIGITAL and ANALOG?

3 3076

Can any body tell me about INNER SHUNT COMPOUND MOTOR diagram?


what is the differnce between vector and phasor? are both same or there is difference between two term.?

5 9168

In batteries after completion of charging which colour gas is emitted from it?


2 2355

(1)Electrical power is generated in KV, power consunmed is in MW and the transformers used are in KVA. How is KVA converted to MW as power being consumed by the consumers? (2)What is vector group of a transformer?

1 2295

Why we are measured insulation resistance applied through DC Voltage?

3 3460

function of soft starter .

2 5336

what is different between DIGITAL and ANALOG?

2 2974

why the voltage level is changed when the unearth cable is earth

2 3503

WhY PF low at Time of PT Missing in HT Meter


2 3004

When One Phase PT Missing (voltage drop ) this time current is zero of This phase(PT Missing Phase) and current is Not Zero of other Phase but PF is always Low That Why



what happenes if two voltage source connected in parallel will be connected to load.

Efftronics Systems,

3 11138

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Un-Answered Questions { Electrical Engineering }

on a three-winding transformer relationship delta-delta-star, on third winding why the relationship is a star? what are the advantages and disadvantages? Thank you and please help


63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?


Single line diagrams for star to delta and DOL starters.


what is the value of combined earthing in general electrical circiut?


How can we choose the rating of submersible motors


why is the power generator connected as star earthed or star earthed through reactance and what its features ?


Why the output of OP-AMP is always less than Vcc?


What should be the protection scheme for a 15kw, 3-phase motor working in a lathe machine.


How halogen & merquery lamp works.


what are the problems that generally occur in power flows??


what is x'mer ,isolation x'mer & yltra-isolation x'mer?????


where can the transformer having vector group Yny0 be used??


What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.


how to test and calculat the head and discharge in borewell compressor


If the earth is a good conductor of electricity, why don't people get shocked every time they walking on earth?