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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the maximun current carring capacity in per phase for three pole 100anps rating ncb

L&T,

3 6164

I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

1117

what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?

1569

what are the effects on an power plant and consumers if the power factor is increased or decreased?

2 2920

What type of fittings and electrical accessories can be install in radiation area ?

932

in ring main system we use the isolater b/w transfer bus and main bus if we r not use isolatar than wat will be the effect in our sys.

1136

why in electric train we can't feel current & generally we have get socked in our normal electricity ?

3 3903

what is the diffrence between kav and kvar?

5 18458

why generator and t/f ratings given in kva?

2 5287

what is the diffrence between dol and star delta strater? why star delta starter used instead of dol?

3 6946

what is the rating of boiler?

4 6094

How you calculate the repturing capacity of a HRC fuse

CPCL, RSCL,

1641

What is the exact load current needed for a place which has 100nos of bulb of each 100w?

2 2720

Can anyone explain me about the capacitor calculation

1199

difference between shunt coil and tripping coil

GE,

8 61527


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Un-Answered Questions { Electrical Engineering }

What is sensitivity of a measurement?

241


howmany electrician should maintain for a 1000 kva used plant... in kerala..

1150


how to find impedance , mutual indatnce in transmission lines

1183


Batteries. What is the difference between Lead and Nickel batteries ?

1242


how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?

1060






we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.

1194


Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.

1134


True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

683


How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point

722


hi this is hema can anyone mail me previous years questions for the APPSC-A.E.E (in electrical stream.) ......thank u.

1054


What is different between Circuit breaker and Isolater?

752


what are the components in electrical control panel (for example: 415V, 3-ph, panel to operate utility and 3-ph DG set).

1103


A ray hit a smooth regular surface at an angle of 20 from the normal. Calculate : 1. The angle btw the incident and reflection ray. 2. The angle of deviation.

1027


While testing a ZCT what parameters have to check or measure?

1439


when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil

843