Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the need of black rock stones under the transformer yard?

TNEB Tamil Nadu Electricity Board,

5 9321

What is the name of transformer oil?

18 14357

lightning arrester rating selection procedure: (line to line voltage(kV)/(squ.root of 3))*squ.root of 2. now the question is, IS this above formula correct for both STAR and DELTA connected system???

1 3922

I have a 25 KVar capacitor bank at my facility.How to check the capacitor bank ??

2 13639

When we use a multimeter, while checking continuity of a closed circuit , what is happening inside multimeter, how it is working to produce a beep wheather it is closed or open.. is there any internaly voltage/current source inside multimeter?

TNEB Tamil Nadu Electricity Board,

3 6947

please send me last 5 year interview questions

ONGC,

1652

why are maintine power factor 0.99 in Eb line? why are used capacitor bank in Eb line? what is the purpose capacitor bank?

TNEB Tamil Nadu Electricity Board,

4 11435

who & how the notations given as RYB to 3phase power supply.

1 3393

clarify types of motor operated valves and advantages

1453

what is phase shifting transformer.

2 4379

How to find the voltage drop for short,medium,long transmission lines of a 33kv sub-station?

1 4872

can anyone help me regarding bout Electrical designs and calculations .. which text book should i follow as i am a trainee engineer.Description of my work which is Electrical designs like cable sizing, lighting, lightning, Gensets sizing, motor sizing, transformer sizing, generator sizing, circuit breakers, PDB MCC PCC SLDB MLDB panels, Single line diagrams mainly, substation desings, cable routing and layouts, reactive power compensations, power factor improvement, voltage drop calculations, power generations, power transmission, power distributions all calculations.Please help me

3 5261

what is electrical machines

1 2992

I would like to install the largest KW alternator to a 200 amp aluminum bus box in my home. Is it possible to install a 250 KW 400v 251amp synchronous alternator to my home?

2 2964

how to measure genset CT coil range?

1 3737


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Un-Answered Questions { Electrical Engineering }

What is the meaning of floating point earthing in battery backed systems ?

1465


where rlc series ckt used?

1760


why the field winding in dc motor is not short circuited eventhough dc supply is applied across the winding

1392


Why do we need interlocking in a HT metering or Ring main unit switchgear?

1544


Why ground terminal is used in pot meter 10k ohms

1429






could anybody able 2 send me jindal steels previous papers fr electrical steam....pls send 2 my id if possible....sirisha.shaik@gmail.com

1564


i want to know about torque of slip ring induction motor

1688


what are the difference between PLC and embedded

1639


WTA used cb?

1431


what is the difference between changer, converter and transformer?

888


if flux and load static in dc motor and supply voltage increases 20% then what happened in speed

1460


what is mean by dual digital protection in the relay field?

1457


what is the voltage between earth & neutral in 3 phase electrical connection.

1444


how i calculate the syncrones generator NGR resistance .if we have a 6mw generator line voltage of generator 11kv also line current 393.3 ampere.

1647


how does commutator convert a.c to d.c?

1752