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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how does it help for selection of a transformer.

Reddy Labs,

1 2800

what is the difference between elcb and rccb ?

Trident,

1574

In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?

1342

In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?

1 13864

how can a race around condition be eliminated using master slave flipflop?????

3 31873

What is the formula to find out the kvar required to improve the powerfactor from .85 to .99 at 1500kw, 415v.

Trident,

4 16648

can we find the inductance of a induction motor?

Trident,

1379

What is the winding resistsnce need to be in a 1000kva, 11kv/415v transformer, between ht winding to lt winding, ht winding to earth, lt winding to earth.?

Trident,

1 4798

where can i get vijaya electricals limited in hyderabad interview auestions can u give me the website address plz

1407

is it possible to flow a current between nutral and earth in a circuit? although nutral and earth having same potential diffrence? i=0/r=0A if any body now any solid reason because i am getting a triping problem in rcbo due to nutral and earth shorting???

2 2993

Is there any calculation to find unknwon(unferroled) phases R Y B in alternator,3 phase motor anybody shoot my problem. how can we notice this is the respective phase?

2 3088

if an alternator or turbine using fuel to produce ele energy and we didn't connect load to the ends then where was gone the ele energy

2 3002

Is there any calculation to find unknwon(unferroled) phases R Y B in alternator,3 phase motor anybody shoot my problem. how can we notice this is the respective phase?

3 4447

what is the difference in operation of 3 phase motor when am forward delta connection and reverse delta connection?

Birla,

1 3219

Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?

Madina Group,

1329


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Un-Answered Questions { Electrical Engineering }

At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

1360


what is the prosses for getting of 33kv licence (i have completed my engineering degree & working in 33kv substation for contract basis )????

1237


from where the self excitrd induction generator get the power?why is the voltage regulation is poor of seig?

1482


Hello seniors m an engineering student in 3rd yr..i want to know what are the software course in electrical field?i wanted to do certification course but i dont know much about the course?..Regards

1490


why connecting surge unit in contactor coil

1189






how is find out kwh step by step

1140


neutral earth resistance testing is it possible for transformer while in load condition

1269


What is the formula to calculate the rating of power cable for three phase current.

1487


What aturn on methods of scr?

514


1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

940


what is earth fault relay 64T, why it is used in main Incomer and neutral CT of Transformer.

2444


am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

1203


why is control bus bi-directional?

1510


Can anyone explain me about the capacitor calculation

1474


define superposition theorem thevnin theorem ,norton theorom?

1571