Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what voltage to be select in megger for insulation resistance testing to L.V , H.T cables,motors and transfomer?and ohms valve should be giga ohms only or what?

Deevya Shakti Paper Mills,

1 14631

how can motor both beasrings insulation resistance can be check?

GE,

1527

2.5mva transformer is installed in our company with oltc but it is not working in auto mode ,it is operative in manual mode control wiring is done how can i rectify it?

Imdaad,

5 5680

what is the diference beteween dedicated earthing & body earthing?

1 5169

can we use 3 phase UPS for Motors and Other Machines

ACC,

4 8796

how does a current carrying conductor posess a magnetic field. what is the reason for the production of electro magnetic field around the conductor

Vizag Steel,

2 6783

How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?

Siemens,

1474

how motor should be connected i.e star-delta or star-star or delta-delta ?

GSE,

3 4615

can i used 400A SFU (for the use of PA fan motor),if my BUSBAR rating is only 315A?????answer me quickly as possible.......thanks

1 3424

what is circulating current in parallel transformer???plus how it is generated ???plz explain in detail.........

2 4852

suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?

ABB,

2 5227

why dhyedration test required for transformer oil once in a year

1 3225

EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?

1365

what you mean by vector group of a 3 ph transformer

1 2540

can transformer of different kvas be paralled

2 3848


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Define what is the function of anti-pumping in circuit breaker?

660


which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant

1451


WHAT IS THE FORMULA FOR CALCULATING CURRENT RATING(DIRECT IN GROUND OR AIR) OF ARMOURED(XLPE) CABLE OF 4C,16Sqmm?

1626


What is the distance between body earthing and neutral earthing.?

4052


Difference between earthing & grounding.?

1552






How we can calculate the life of Lead acid battery

1280


what types of cable used in underground coal mining?

1028


What is time invariant system?

661


What is meant by Low Resistance Cable and High Resistance Cable.

1404


what is lumped and distributed elements?

1518


whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?

1012


why and where we use early make & late break contacts in protection?

7531


How to reduce -234126219.6403 MVAr generation and by what?

1202


What is the operating principle of turbo-generator.

1725


Comparision of Air break circuit breaker, SF6 Circuit breaker and vacuum circuit breaker.

1901