Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How do performance buccholz relay testing in power transformer

1 3277

What is the different between buchholz relay and pressure relief device?

2 19431

Why DG self motor winding burnt out?

Aegis,

1 5341

in 4 pole lap wound dc motor one brush is disconnected then what result in new voltage if its voltage is v volts power is p watts current is i amp

GATE,

1 3742

Cummins 750 KVA generator how much disel consumed per hour and how many units generated on 100% full load.

1 11221

For 7.5HP motor 2880rpm 415VAC Connected with Pressurisation Fan we used Star Delta Startor why not we use DOL startor

DLF,

2 5837

what is different between buchhoz relay and pressure relife devices in transformer

Spanco,

2 5660

What is electrical charger?

HCL,

3 5887

Explain Creepage Distance of Insulator

ABB,

2218

for a slip ring induction motor if the stator is short circuited and rotor is given supply? how does the rotor rotate?

TNEB Tamil Nadu Electricity Board,

1 4784

What shall be the minimum distance to be maintained between two power cable in a common trench?

3 6745

How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

2604

How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

ABB,

1928

What is the purpose of reactor.why we used in over head line?

2 5014

what was the function of the auxillary relay?

3 6730

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Un-Answered Questions { Electrical Engineering }

how to check three phase motor torque value?

2371

In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring

1970

can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??

1921

i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

1625

Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??

1666

How harmonic block test are conducted on relays ( Siemens,Areva ect )power transformer using omicron kit?

2272

why u r living from presentaly working.

2572

explain transformer ct connection?

2057

What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.

2678

If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link

2121

What are the advantages of vscf wind electrical system?

1089

what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.

2099

how ct burden,magnetising current,ratio and knee point voltage are related & derived

2197

How to checked frequency drive output voltages?

1197

What is CCT (Correlated Color Temperature) ?

1957

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