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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

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 23384

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.

2006

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 13099

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

Essar,

5 9546

why the impedence of the transformer is expressed in percentage?

DEWA,

3 9570

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

L&T, Sail,

2 7101

how to introduce yourself

1991

acb(AIR CIRCUIT BREAKER)NOT CHARGING AUTO

2331

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

2 4488

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,

9544

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

L&T,

1806

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

1895

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

1845

what is speed of light?

8 9251

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

1 3394

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Un-Answered Questions { Electrical Engineering }

IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?

4041

if voltage bt phase & nutral is 38v in a panel board . whats the root cause.

2282

is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?

2095

How do we calculate transformer oil in liter from the rating of the transformer.

1618

how can i determine the KVA/MVA rating of transformer precisely?? is there any standard test?????

2353

it is possible to measurement of tension of slipring induction motor(SRIM)carbon brushes, any maesuring instruments are available in the markets.

1959

Please clarify 1. Icw: rated short circuit working withstand capacity 2. Icu: Rated ultimate breaking capacity 3. Ics: Rated service short circut withstand capacity 4. other specification of ACB

2702

WHATIS TIME CONSTANT? WHATIS ITS SIGNIFICANCE? ILLUSTRATE THROUGH EXAMLES.

2168

i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?

1858

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

2610

What is meant by control system?

1121

what is the difference between RMS & TRUE RMS VOLTAGE

2890

what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?

4479

what are the preventive maintanance actions taken for air circuit breaker? please answer me

2001

what is the difference between torque induced and torque load?compare them with respect to dc motor?

2239

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