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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why are transmission lines multiples of 11? Is it because of some historic reason ? Or is there a scientific base to it?

5 3875

what is the difference between the alternator used in hydro and thermal power plants??

2 18513

how the length effects the ampacity of the cable? if a cable is carrying a current of 100A for 50m length then what will the effect on current if we double the length?

2 3121

can any tell me how to do wiring connection in L&T 3ph 4wire E301 CT operated energy meter, what is P1,P2,P3,P0. M1,M2,M3, L1,L2,L3.

Bhartiya International,

2 7991

why transformers not work at d.c.-

3 3856

Hoe do calculate the Cable size for Amps rating ?

1197

what is the right cable size for 100 hp mpter.

3 9814

What happens when ac supply is given as excitation voltage instead of dc supply

1 2443

i have seen a picture of a power plant. in that pic. i saw chimney like giant structure which were spreading smoke like something...i want to know is it chimney or cooling towers, as my friends use to say.

2 2345

what is the calculation of current when a clampmeter is attached to two phases of any drives.

ABB,

3 3421

what is the purpose of using battery in dg sets, please specify in details.

Balco,

2 8336

what is the min and max dc voltage for a dc system (110vdc)

ASD Lab,

1 2195

what is the rating of power generation in india?

Siemens,

10 8457

how to measure earth pit resistance

BARC, BYD Electronic, Construction,

7 82075

how can i determine the gear ratio for a rack and pinion system if an electronic gate operated by an electric motor is to travel a distance of 5meters in 15 seconds.

1080


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Un-Answered Questions { Electrical Engineering }

If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

987


3ph motor running with unequal kw and different pf what are the reasons

769


Why it is possible to use PWM with a STATCOM and not with a conventional TCR based SVC

1027


WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?

999


How PSV sizing being done

1261






What is the tension required for the 25000 CFM AHU belt

1534


We are planning to synchronized DG's with our captive plant in the event of black start of plant, but before sync we checked voltage of DG with our plant voltage and it varies from 5 V to 450 V. So in this condition how we can sync DG with plant ?

485


How to find out damper winding failure for synchronous machine?

447


Two liquids hot and cold in two vessels are there and an metal bar acts as a conductor of heat between the two vessels. what happens then. what happens after 24 hrs?

1188


why does rotor rotets?

1555


WHAT IS MEANT BY OVER EXCITATION IN GENERATOR TRANSFORMERS? DESCRIBE IT.

1649


What is the difference between grid and off- grid system??

966


what about GD square and its important for motor design?

2735


Define resonant peak?

178


what is the differencce inn series and cascade connection??

3676