Electrical Engineering Interview Questions
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calculate multiplication factor of a trivector meter with line ct ratio 200/5A, line PT ratio 11000/110V and meter CT ratio 200/1A and meter pt Ratio 11000/110V.

4 21614

what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.

1542

why power generated only 11KV not more than???????? and why power up/down is multification of 11*?=??.??? foe Example 11/33,11/66,66/11KV etc,

Essar,

8 11014

how to identified power tranfer line is how much KV????

Essar,

5 8050

why the impedence of the transformer is expressed in percentage?

DEWA,

3 8272

what will happen if i commission a transformer without connecting the neutral?

L&T, Sail,

2 6191

how to introduce yourself

1570

acb(AIR CIRCUIT BREAKER)NOT CHARGING AUTO

1819

What is the reason of using bus-bars on the secondary on the LT transformers?

2 3569

I had attend the ITC (Indian Tobacco Company) interview (For Electrical maintanance).There they was conducted me a written test.And I was passed in that.Now They are going to conduct a Practical Interview in next round.Please help me what practical test they will ask............?

ITC Infotech,

9055

am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

L&T,

1344

In HI POT test what is reason for applying the AC VOLTS and DC VOLTS in different applications what is the nessesity for this ?

1434

if the number of poles generated in stator and rotor side of an induction motor are different then what will happen and why?

1346

what is speed of light?

8 7088

Why RCD trips on connecting to one Socket but not trips one other circuit on same RCD.

1 2785


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Un-Answered Questions { Electrical Engineering }

Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A

2550


what is settable hystersis protection? If any body knows plz kindly post the answer..

1540


In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?

1204


What was your role in the silicon evaluation/product ramp? What tools did you use?

1548


diff.between servo motor and ac motor

1546






What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.

3515


DERIVE AN EXPREION FOR MAXIMUM POER TRANSMISSION, WHAT ARE ITS APPLICATIONS.

1575


what is the constructional difference between a power transformer and potentian transformer?

1243


why the active power flow of some line is increased when the active power of out is cut ?

1632


What happens if the series current double?

978


What do you mean by a current transformer?

629


How to test the Secure Elite 440 Multi function meter working condition.

1591


WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

1912


Installation method of self treated earth electrode.

1461


if sf6 gas low in gis what will happen

368