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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

it says in neutral wire current flows under normal condition, but when we put tester it wont glow, why?

HCL,

7 5853

how to calculate the watts from the tr

1 3169

Why is it that polarization index type test is required for MV and HV motors and not for LV motors?

La-Gajjar Machineries, Qatar Airlines,

3 4924

What is the Resposiblity of Electrical Utility Engineer

1838

electical engg basic question

Power Plant,

1 2197

why CERAMIC material is used in insulators??

1 2298

Difference between directional over current and non directional over current ?

2 9640

why we somewhere use ryb phase sequance, somewhere use uvw, and somewhere abc??

4 5255

is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not.

843

How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?

963

What is meant by directional power and reverse power relay ?

HAL,

1 2185

what is the ground fault relay,which purpose it will be use,clearly tell me plz

1089

plz tell me in my que,how to connect thw electrical wirening in house?

1 2083

plz tell me,ht and lt panel terminals in substations explain beiefly

APCPDCL,

1795

what is the proximity & ferranti effects can you explain to me

APTransco,

1 1697


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Un-Answered Questions { Electrical Engineering }

What are the classifications of oscillators?

175


what is mind in cable

1088


how to check ac servo motor

1193


we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain

1172


what is earthing transformer? draw the winding dia.of earthing transformer.

793






What is the practical way to calculate the cable size for known ampere load?

466


how load of a turbo generator can be increased

963


What is the function of a neutral reactor.

756


1.Can we use 6.6/11KV 300sq mm xlpe 3core cable for LT use (415 Volt). 2. If we use it for LT then what is the current rating

771


What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?

1440


what is cogging and crawling

1529


Why lose 1 phase voltage in 33kv to 415v stepdown transformer

801


how to introduce yourself

1111


What will be the effect if I use inverter as UPS mood?

1272


What are test signals and their significance?

174