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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is Grounding?

2 4908

how u change the vector group of a transformer like DYN1 to ynd11

2 5702

What are the types of circuit breakers ?

Genco, Super Max,

6 7828

Merits & Demarits of Oil circuit & Air circuit breakers ?

Genco,

1910

Two CTs 1600/1 and 35/1 are in series. while checking the ratio test of a CT(1600/1),same 1600A will also pass through the CT having ratio 35/1. Will it be harmfull to the ct(35/1),if yes , what will happen.CT secondary is shorted

3 6821

what is the function of Droop CT and where it is used?

Lanco,

3 34511

In supply RYB are mentioned. But in transformers, why they are mentioning XYZ?

3 16308

Can we use all 3 cores of a cable to connect DC motor + ve terminal and similarly one more cable for - ve terminal.

2 3753

pls define kvarh

2 5852

What is Grounding? any difference b\w earthing? if yes plz explan??

ABB,

3 7297

What is HVAC, PLS SEND DETAIL OF hvac.

6 7843

WHAT TYPES OF OIL(STRUCTURE) ARE USED IN POWER TRANSFORMER INSULATION?

4 6113

why neutral and body earthing of transformers kept separated? what is distance between two is required as per is?

6 28241

what is the pperating squvance in transmission line for circuit braker, isolater & earthing switch.

2 4326

what will happen if i connect or change line with phase terminal

1 3347

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Un-Answered Questions { Electrical Engineering }

Swg formulae

1846

Why different Pressure switch used in marine boiler water circulation system

1610

Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.

1967

what is meant by 3rd hormonics ?

1784

What are the raitings of Mcb,mccb and Acb in detail ??

1431

how to setting voltage RTCC panel

1487

Explain the fundamental difference between emf (electro motive force) and pd (potential difference) ?

966

What are the necessary solutions needed to be carried out on a malfunctioned earthing mechanism of a VACUUM CIRCUIT BREAKER.(TAMCO)

1844

TO CALCULATE THE RESISTANCE OF GRR OF HT MOTOR 400KW WHEREAS STATOR VOLTAGE 6.6KV AND ROTOR VOLTAGE 705V AND ROTOR CURRENT IS 346A.

5285

What is time response of the control system?

926

How to perform a DC resistance test In Alternator and their proceduces?

1478

Explain the role of a car driver as one of a feedback mechanism.

1026

what is the effect of back reactive power on the generator ?

2047

what happen ehen synchronisation is done at below rated speed

1970

during installation time of transformer and alternator which points we have to observed?

1774

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