Electrical Engineering Interview Questions
Questions Answers Views Company eMail

H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....

Essar,

1456

How to calculate 5hp 415v 3phase 2800rpm Ac motor full load current with out tourgh

Siemens, Spatel,

1 3554

are there rmu for 3 transformer?

OSC,

1411

what is G.O.D.S. ?

RCE,

2 3451

according to ohms law ,the voltage increases then current is what happened?

NTPC,

4 4366

I want to know which cable would be best to carry 125A current to a distance of 50m. Voltage is 3phase. Kindly share the formula with answer.

Medway Educational Consultant,

1 2233

i have 1500 kva generator how much maximum load avilable of use

Dr Reddys,

1 2504

what is dc system? how getting pulse from rectifier?

ETA,

1 2269

Why battery is always operate on dc supply?

Vikram Ispat Industries,

1 2325

how to calculate the size of the HT cable

1406

When alarm is activated in buccholz relay in transformer

1 2348

Why inductor short on dc and capacitor allow to flow ac?

1 3369

Dear sir, my knowledge about cable size determination is limited. Though I read examples I could not calculate the Cable size required for electric driven pump 40 KW, 380 Volt, 50 HZ, 50 meter from transformer and it is three phase star delta starting. Please help as there is no one in my surroundings to help.

1275

In D O l starter motor starts as a star connected ,then in star delta starter also motor initially starts as star how come star delta is preferred from dol

2 2333

Both generator parallel condition shared load equally but one genrator taking ampere more than the other what are all the causes to make like this

Ofer,

1230


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Un-Answered Questions { Electrical Engineering }

WHAT IS MEANT BY DERATING OF THYRISTOR?

2440


How to calculate cable size in HT AND LT

1494


What do you mean by power transformer?

635


Why mostly the HV side of transformer has Delta?

2743


tell me about eletrical contractor

1508






is that a problem if i connect a single phase load to a secondry delta connected transformer but i get a neutral from other transformer i the system?

1388


how to calculate the magnetizing current of ct ( 800A/1A) for Relay 64

1030


what happens when series resonance occurs?

1378


what is electrical machines

2993


Draw a 230kv two-bus bar system showing the following. 1.Two generators (150MW) each connected through one 15.75/230KV transformers 2. 1 outgoing lines 3. Two 230/130 KV transformers 4. BUS PT's 5. CT

2104


For overhead protection we use which transformer?

1922


Why reactors use before incoming of ac vvfd drive?

1350


can anyone show me how the 3 phase power is supplied to socket outlets?

1487


what is the acceptable limit value for Desolve Gas Analysis/

1425


How to calculate the phase to phase clearness of HT /// LT bus bar?????

1572