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 9288

What is the name of transformer oil?

18 14243

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 3900

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

2 13615

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 6907

please send me last 5 year interview questions

ONGC,

1637

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 11402

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

1 3378

clarify types of motor operated valves and advantages

1448

what is phase shifting transformer.

2 4359

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

1 4851

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 5233

what is electrical machines

1 2972

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 2934

how to measure genset CT coil range?

1 3700


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Un-Answered Questions { Electrical Engineering }

What is an automatic controller?

623


I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.

1655


Write down the brushes of a de machine.

1403


The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

1384


what is charger supervision and control supervision?

1501






hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

1487


Please explain me about Relay curves and their sources to read ?

1341


how to decide no of electrodes for 1600A LT Main incomer panel

1150


R=*ΒΆ l/a

1142


what reactive how to maintain

1366


it is in our knowledge tht right plug of supply of residential suppy system is phase n other is neutral...howevr the battery charger of mobile works in both ways...i mean it is not restricted in only one direction.ny of the holder of charger can hav phase .so y is it not lik tht phase of supply must b connected 2 phase of charger...?

1522


How one can check the MAIN of a house wiring ?

1433


What is meant by bus bar protection?

618


Can anyone provide with a SLD for HT panel installation for a 33KV line and distribution end has three 1.5MV transformers. Is it suitable to use OCB or VCB and also provide me the suitable rating and its connection diagram.

2861


Different types of relay fault which phase sequence??

443