Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to calculate KW what is the formula for KW.

Toyota, UU,

17 22434

What is the d/f b/w MCCB & MCB

ABC, LMN,

6 14648

what kvrah y we need to take the readind of that

681




What type of tranformer generaly at soft wares like capacity 2000 kva 1800 kva etc iam confused it CT or PT OR distribution tranformer

3 2869

What is the use of conservater, bucchos relay, breather in a transformer?

Wipro, Bosch, Zadco,

8 19775

Can we use the 60 HZ transformer/rectifier/Motors/Coils in 50 HZ? if not so, why?

3 4345

why contactor not provided between output of VFD and motor?

Siemens,

6 13638

what is pressure relief valve?where it is used????

Mecon,

4 31383




DIFFERENCE BETWEEN POWER AND CONTROL CABLES

NCC,

9 30001

What is the megger value for ht

Electrical,

16 61440

what is derated current of power cable & what is formule to find derated current?

Thermon,

1 10259

what are cable earthing and bus earthing trucks?when and where they are used?

1 5174

in three pin pluge there three pins one is phase and second is earth third is nutral why nutral high diameter compare with phase and earth

Radiant,

10 12080

What is the diffrence between an ELCB(earth leakage circuit breaker) and RCCB(residual current circuit breaker)?which has higher degree of safety and why?

2 5599

what is the function of breather in a transformer

Areva, Bhel, Vijai Electricals, RKM Powergen,

29 89046


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Un-Answered Questions { Electrical Engineering }

Write down the name of 2 lady Bir Pratin of Bangladesh

696


Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

692


What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

928


I want single line diagram for AMF & DG syncronizing panel

4877


what is the question paper model for section engineer in RRB

743






how we provide neutral earth on synchronising panel as per electrical standards?

728


we use 400/5A ct and 35/roor3KV,/0.1/root3KV,0.1/root3KV pt ratio. What is the multiple factor of this meter.

745


Meaning of ingrace protection for motor.for ex IPXY

1128


please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in

682


Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?

923


define hysteresis loss, eddy current loss and windage loss

663


Write down the design procedure of commutaj.

823


In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?

326


we have 15 ampere variyac but we want 30 ampere variyac what we do

448


how unidirectional torque is produced in DC motor?

5116