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Electrical Engineering Interview Questions
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in 33kv/11kv stepdown t/f why should we use Star point

 2 2654

When PRV operated at power transformer ,can anybody tell me particular pressure for 50mva transformer plzzz.

BWSSB,

1 1921

difference between local breaker backup relay or backup protection relay ?

 1 2072

Does VT metering core can be used for synchronizing.

Shrishti Power Technologies,

1 1766

Please explain, how to test vector group of tranformer(Delta y1) . Thank

PGCB,

1210

how to test YNyn0 vector group in transformer?

 3184

Master trip relay code no

TR,

2 2531

if reactive power become zero in transmission system then what effect on system.???

Sedemac,

3 3950

Why double earthing is required ?

 1 3358

What is the meaning of dedicated earthing?

Dabur,

1527

The basis on which voltage selection of motor is done i.e. either HT or LT.

DAE,

1 2541

What is cogging and crawling phenomenon in motor.

DAE,

2 3239

I want to know that a 160kva diesel generator contains capacity of 160kva on each phase like R=160 Y=160 B=160 total RYB=480kva or it is total capacity of all there phases like RYB=160kva ... thanks in advance ...

jlpl, JP Saraswat Engineers,

2 2553

what is inverter and converter

Hindustan Syringes and Medical Devices,

1422

If age of Raju is 20% less than Sanju,then age of Sanju is how many % more than Raju

Tech Mahindra,

2 3393

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Un-Answered Questions { Electrical Engineering }

how to increase senstivity of ct

1920

How do apply electrical 'c'license......pls advice

1251

How much of the total hydro power potential has been exploited so far in india?

617

How earthing/grounding done in aeroplanes and ships.

3116

The moisture in air will condense at

667




what are symmetrical and non symmetrical components in electrical installation.

1600

How you will determine the volume of oil in a particular Distribution transformer.

1434

WHY IL=IPH IN STAR AND WHY IPH=IL/1.732 IN DELTA? WHAT IS REASON BEHIND IT?

5575

What is the most important precaution in any experiment with d.c. Shunt motor?

784

If I have Energy Meter Ratio as 100:5 & Also I have CT Ratio as 50:5 then what will be my multiplying Factor(M.F.)

1536

what is the minimum winding resistance of 30hp compressor, to run or to switch on

1393

What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.

1572

Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?

636

How to work meggar?

1353

sir iam a 3rd yr eee student.no core company comes for recruitment to our college.my aim is to be placed in l and t.tell me the procedures.

1503

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