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 5257

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

2 6112

What are the types of circuit breakers ?

Genco, Super Max,

6 8625

Merits & Demarits of Oil circuit & Air circuit breakers ?

Genco,

2080

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 7236

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

Lanco,

3 35303

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

3 16829

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

2 4109

pls define kvarh

2 6230

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

ABB,

3 7848

What is HVAC, PLS SEND DETAIL OF hvac.

6 8578

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

4 6691

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

6 29034

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

2 4709

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

1 3625

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Un-Answered Questions { Electrical Engineering }

What is electrical diversity factor in electrical installations?

1211

How you calculate the repturing capacity of a HRC fuse

2621

why does connected a indutor with mnsformeretering core of current transformer ?

2138

What is Traction? 1KVA Alternator, How much urrent taken?

2123

What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?

1989

how to calculate singlephase motor efficiency?

2240

explain comutator action in detail.thanks

2255

What do you mean by dependent and independent voltage sources?

1049

CALCULATE THE TOTAL VOLTAGE DROP AND SELECT THE CABLE SIZE IN MM-SQARE FOR A PANEL-262KW AT 110 METER FROM THE SOURCE SUPPLY , SUPPLY VOLTAGE 240/415

2652

Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

2154

Mention what are the different colors on wires indicates?

1277

DESCRIBE THE CONSTRUCTION ANDOPERATION OF BELT CONVEYORS AND SCR CONVEYORS , DRAW NEAT SKETCHES

2074

we have 2.2kw,Y,3000rpm motor but 6leads found in TB what happen if we connect in delta?

1922

What is the gross weight to copper ratio in slip ring induction motor of 4000 HP,6.6 kv, 372amp, 992 rpm GE motor.

2360

what is feeder bay?

1597

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