Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to calculate KW what is the formula for KW.

Toyota, UU,

18 23049

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

ABC, LMN,

6 14855

what kvrah y we need to take the readind of that

747




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 2991

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

Wipro, Bosch, Zadco,

8 20290

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

3 4494

why contactor not provided between output of VFD and motor?

Siemens,

6 14104

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

Mecon,

4 32813




DIFFERENCE BETWEEN POWER AND CONTROL CABLES

NCC,

9 30859

What is the megger value for ht

Electrical,

16 63332

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

Thermon,

1 10873

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

1 5308

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 12341

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 5714

what is the function of breather in a transformer

Areva, Bhel, Vijai Electricals, RKM Powergen,

29 90815


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Un-Answered Questions { Electrical Engineering }

what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?

841


After doubling voltage from solar cells & use step down voltage transformer can we get high current output with low voltage.

715


how to generator maintenance (A Check, B check,Etc)

975


what is FS cable?? Difference between FS and FRLS??

1766


What is meant by Load Encroachment in OHL Feeder Protection?

2281






what are the maximum available current, voltage ratings and switching speeds of the power electronic devices thyristor, power mosfet, igbt, and mct?

870


a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.

478


what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

444


plz send me the placement interview question and answers of whizchip(technical and apttitude)..i have an interview in next.

2865


Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??

784


How to convert a two phase power into a three phase power in induction machine?

616


can any tell me why slope 40% and 80% is calculated in differential protection?

698


Power Factor Correction Panel (Manual & Automatic)

799


why does connected a indutor with mnsformeretering core of current transformer ?

813


what are the analog quality input for protection function?what are minimum reqiments?

658