Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to design coil turns ?

L&T,

688

how to calculate magnetic force genrated by a coil ?

L&T,

854

what is method of dc current measurement

5 5273




How much energy save vfd if motor run on 50 Hz (full speed)

Reliance,

3 2463

How to Decide(calculate) Bush bar size for copper and aluminiam ?

Essar,

902

why knee point voltage should be high in Ct for differential protection

NTPC,

1 3643

what are the difference between protection class CT and Class PS CT

13 23308

WHAT IS DC COMPONENT IN CIRCUIT BREAKER?

10 15292




How to calculate HT XLPE CABLE for 11 kv / 433 v , 1500 kva oil type transformer system? plz provide step by step calculation

Sitara Energy, Engineers India, Polycab, Sonali Bank, Shashwat,

13 94549

Hi friends. m 3 years drop. now d company asks in d interview d reason 4 my drop.what shud b d probable answers 4 that which may not put a negative impression.

2 2455

why we use star connection on the primary side of a transformer?

DRDO, TCE,

5 11752

what is meant by a slip?

10 8076

why transformer is conneted to dc for polarity test.it doesnt work in dc?

ABB, KVPY,

1 4975

What differance between Circuit brekar and Isolater?

TATA,

14 13294

WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES?

6 6718


Post New Electrical Engineering Questions






Un-Answered Questions { Electrical Engineering }

why ten delta testing is carried out on power transformer

586


advantages and disadvantages of inverse definite minimum time RELAY

17


what is the path of thunderlightening? once both a buffalo and a person were standing 5m apart but lightening hit and killed buffalo not person?

1660


How PSV sizing being done

876


What is the difference between single point and double point bonding. please kindly detail about bonding of cables.

1008






Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?

812


How to calculate multiplying factor of dc energy meter

390


I have doubt that the supply HZ (very low or high than rated ) may affect the power factor. is it true. ?

515


What is the application of Dyn1 and Dyn11 vector group of transformer?

1560


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

2895


what are the things that can cause a three phase motor to crawl?

1800


i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors

642


how to select proper cable for ct wiring so that drop within the limit.

688


advantage and disadvantage of team work?

407


what is gridrotor resistance starter

633