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Electrical Engineering Interview Questions
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Is corona effect occurs in Induction motor. pl. justify the answer.

KPS,

4 7603

Why consumers are charged based on Kwh basis why not on Kvah basis.

Unitech,

4 8616

One Township having 850 house and each house load is 2.2KW single phase & 5HP 3 Phase motors of 10 Nos .Who can calculate 11 KV transformer capacity .dilip_bhasker@yahoo.co.in

 1 3657

What must the distance between two MV cables be when they are laid on tray?

 1682

What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV

 1602

WHY IS HV WINDING OF A TRANSFRMER SECTIONALIZED???

 3 5236

Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

 1459

what happens when power factor leads or lags to electical or home appliances

 2 5315

any one can explain the stages of a knee point which is taken during ct magnetising curve.

Tata Steel Limited,

1323

what is V=4.44FBN, THIS 4.44 ONLY U GOT the voltage in term sof 11, 22 etc this 4.44 u will get from form factor which has a value of 1.11

1 2520

sir, is there any ratio,this much of A.C volt is equal to D.C voltage

 3 4722

what is die electric strnth of transformer ?

 1660

1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?

 1521

working principle of induction motor is similar to transformer. but what makes it to rotate? then why the transformer doesnt?

 4 10815

the input mechanical power of a single alternator is increased,its RPM increased but in case of an alternator synchronised with grid its RPM does not increased with increase of input mechanical power. why?

Bhel,

3 7205

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Un-Answered Questions { Electrical Engineering }

why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?

1424

During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP

1411

what is high and low cut off voltage of BB and DG at SPS????????

1007

What is the function of RCBO? What are the different sensitivity ratings & each application?

2147

Explain about p.t?

672




What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?

660

How we select the vector group of 3phase power transformer?

1994

Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.

1694

dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour

1516

How much load can be taken for chiller from 1500 kva transformer

868

why transformer tank is in rectangular shape what happen when it is in step shape

960

What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

1626

How to size fuse? How to size MCB?

1060

What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

1735

what are carbondioxide and dcp used in fire extinguishers

1642

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