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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is restricted earth fault protection ?

1 2649

why a diode bridge is provided in vcb control circuit ?

2 3243

maximum transmission voltage in india ? & where is it situated ?

GIDC, OPTCL,

7 10523

how to increase the power factor in machines

5 4690

What is mean by earthed & unearthed cable? Voltage grade of 1.9/3.3 kV(E), 3.3/3.3 kV(UE), 3.8/6.6 kV(E)what it indicates??

2 13496

resitance in ac=1.6*resistance in dc

3 3436

Hello Can I use step up HV transformer 440/4160V as a step down? Thanks Evgeny

5 4473

what do you mean by mf of energy meter & its formula?

4 28072

What is Procedure the procedure to select CT's & PT's in 66kV and above substation?

BEL,

2 4281

What is GIS (Gas Insulated Switchgear)

Power Grid,

3 8550

What is meant by "tampering detection" of a electrical energy meter?

3 2852

difference between EMVT, PT & CVT ?

9 26702

while calculating the power absorbed by a resistor connected to the output of a half wave rectifier circuit should we use rms or average current? explain with reason.

Vedanta,

1 1559

can we say current flows inside an atom as electron moves inside an atom?

Vedanta,

7 5591

is IS says that neutral should be brought to switch box. and this one is a recomended practice

Sterling Wilson,

1013


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Un-Answered Questions { Electrical Engineering }

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

463


i have completed deee and i've (June2012-feb 2015 experience in electrical maintenance in pvt ltd company.company having HT & LT electrical power.how to apply electrical C-license ,NOW I was resigned my job,what are requirements of applying for c-license

808


How you give clearance to a spare feeder.

698


why we are using in reverse power relay in generator singranizing

1230


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)

648






are there rmu for 3 transformer?

900


Advantages of using generator circuit breaker (GCB) scheme in a power station ?

4063


difference between the applicability of nortons and thevenin theorem

1026


explain the Trip supervision circuit

1163


what is lumped and distributed elements?

1044


where can the transformer having vector group Yny0 be used??

2805


how to calculate transformer load?

1356


Why let through energy not considered for ACB breaker while cable sizing?

1320


When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?

765


how to calculte capacitor range for single phase induction motors??pls tel

1080