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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

3287

What is meant by electrical speed?

1 3449

What is the difference between induction generator and synchronous generator?

3 10648

What is the difference between solid grounding and impedance grounding?

1373

Current chopping mainly occurs in air blast circuit breaker.why?

1 12264

For high voltage and low current Circuit Breaker preferred is vacuum circuit breaker.why?

1 13783

Salient pole alternator is more stable, why?

1860

What is difference between stable and steady?

1 7249

Is there any difference of regulation of transformer, alternator , transmission line, if yes, what is it?

1 4012

can i use 10 mfd + 6 mfd instead of 15 mfd capacitor in single phase motor as running capacitor

3 6234

How to calculate impedance volt in Transformer?

1387

what are transmission line parameters and transmission line constants?

1 2717

WHAT IS THE CURRENT CARRYING CAPACITY OF 2.5/3 CORE HI TUFF CABLE,WILL IT SAFLEY CARRY 8.6 AMPS OVER 120 METRES,CAN YOU ALSO ANSWER WITH FORMULA FOR WORKINGS OUT ,THANK YOU 3RDYR APPRENTICE.

2895

why phase & neutral is use in tv? why earthing not use ?

2 4084

why wave traps are placed only at y and r phase?

3 11673


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What is meant by bus bar protection?

490


In a Impedance Based Distance Relay (Quad Characteristics) - Could there be two different Line Angle(RCA) for Ph-Ph & Ph-Gnd? If So Kindly Let me Know.. Where, What are the advantages of the same?

765


What is the meaning of 40X8X2 busbar dimensions for carring load of 400 Amps

1358


What should be the length of transmission line so that we can see/obtain the full sine wave of voltage??

1239


what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

1615






dg earth connect only in the amf panel or not why

1418


hi, could someone help me to find a control design for syncronising panel .

1129


What is domestic transformer? Draw the connection of domestic transformer.

1667


IN SINGLE PH TRANSFORMER IF LEKAGE IMPEDANCE DROP IS NEGLECTED ,THE FLUX IN THE MAGNETIC CORE and the lekage flux linking a winding are a)proportional to the applied v to the winding i respectively.

1413


generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...

1389


Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632

2008


What types domain of laplace transforms? What behavior can laplace transform predict how the system work?

508


How we can change the direction of rotation of Induction motor? Prove it using graphical

1438


what is the generator rating for 40 amp load of 3phase motor.?? 400v voltage of generator... plz tell me with formula its urgent...plzzz... and also tell me that this 40 amp at all phases mean 40 amp on red,40 amp on yellow,40 amp on blue...... or the total sum of that 3phase is 40 amp....

6157


What is the difference between a 3 winding and 2 winding Potential Transformer

1596