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Electrical Engineering Interview Questions

How can one connect three source of electricity in a house..the source are 2 gen and one electricity.

4248

Why we use Fuse in transformer in secondary side.Why we dont use fuse in primary side?

Care,

2947

how can i change the rotation of the AC single phase induction motor and show me by diagram

902

in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformer

866

how  do you choose the cable size as per amps rating & the voltage drop for the same.

C&W,

949

Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT?

1067

how to calculate the phase diffrence beetween given two equetion  y= 15sin(wt+pi/3) and y=10sin(wt-pi/4)

1696

how the speed decreases of a generator in power station if load increases

2870

Why consider motor rpm to select capacitor for motor

KSEB,

2112

How many percent of power are not being registered if we bypass one side of the meter base terminal using #8 cu wire on 1-phase kwhr meter.

1316

in dc shunt motor if field winding is shorted then

1046

in dc series motor if field wdg is shorted then

1046

in dc shunt motor if armature wdg is open then

1585

10rm cable can got load ---- amp? Or Which Size Cable can take the load 100amp capacity SCR; breaker.

1772

3ph line voltage 220v, how can run a 220v single ph motor or Light?

1906

Un-Answered Questions { Electrical Engineering }

what happend to DC shunt motor if its field winding insulation becomes slightly weak? will that motor can run on full load or not explain in detail. thanks

771

why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

1316

bitumar

1269

why we not used 11kva as a direct our electrnics component.

1925

what is meant by power and distribution transformer ?

1131

State any two nuclear power stations in India, with their generating capacity.

1015

I am EEE student i want to improve my core side skills.how cn i approach it?

1586

what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?

1375

we have an energy meter in a capacitor bank panel, So should we consider it's readings as energy consumption on daily basis. (when capacitor bank doesn't have any energy losses)

1534

Do u know any one? how to find out in motor rated amps? formula?

1070

what is static frequency converter?what is the function...of sfc...?

1368

A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

1361

How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?

1028

WHAT WOULD BE THE FORMULA OF WIRE GAUGE FOR A FULL LOAD CURRENT

1238

What is the direction of current flow in ct secondary...means if the current is flowing from P1 to P2 then what will be the direction of current flow in ct secondaryw

1001