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Electrical Engineering Interview Questions
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How will you calaculate the Ct ratio based on connected load 500KVA,and 11KV supply ?

 3 11648

what is the diff. b/w balanced and unbalanced load..?

 12 49138

what is synchronous speed.? if an induction motor is made to run at full load, then is this synch. speed too..?

 2 6468

why power is generatd at 50 hz only..? can we do this on another freq...?

 7 7668

What will happen if we give DC supply to AC motor?

 9 34644

What will happen if we give AC supply to DC motor?

 4 12860

What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker

 1455

In case of power/distribution transformer what is percent impedence?

 1 3108

If we increase frequency in transmission line in lieu of voltage what will happen?

 1 4329

How can be decreased the size of transformer?

 6 6043

which type of material is used to transformer laminated core?

 6 11827

What is fault level?How it is calculated and how it is Expressed?

 2 3966

IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?

ABB,

1961

What are the special protection given for high capacity Motor, more then 10mw

 2 3394

What happens if a +vely charged particle is placed in the centre of a room and assume that the north side wall is having magnetised with north polarity and south side wall is magnetised with south polarity. In which direction the particle will move

BSNL,

5 6048

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Un-Answered Questions { Electrical Engineering }

What are the classifications of oscillators?

672

1.what is mean by 8/20 micro sec waveshape

1782

Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

1711

DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER

1593

Enlist four components of electrive drives.

1419




kindly send me 11KV MV motor differential protection procedure by primary injection method.

1012

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1489

hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

1531

how works inductive &capacitive sensors?

1526

Classify milling machines.

643

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

1579

difference between ac series and parallel circuit

1460

what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?

1574

In india, according to trade theory above 5 HP motor reqired star delta starter. But we R connect 11 KV motor with 14MW in Direct to line ( With VCB starter combination) Can U Guess, How it is possible ?????

1595

What if high voltage side circuit breaker of a ehv transformer instead of lvcb? Kindly elaborate.

1313

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