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Electrical Engineering Interview Questions

which fault current is maximum: 3 phase short circuit, LG, LL or LLG?? why?? in one of the problems that i have solved, 3 phase short circuit current on an unloaded generator came out to be less than the LG fault current. can anybody please explain why.

Bhel,

8391

Sir I want questions for rrb sec technician gr III (electrical)

RRB,

4360

wat is the difference between BE &BTECH.

8028

what is meant by ceiling voltage, ceiling current?? pl reply asap

18710

How regulator control the fan speed?

20978

i need bhel question papers.

Bhel,

9061

generaly all power generating devices is expressed in KVA or MVA then why power ststion is expressed in MW

10636

why skin effect is decreases with decrease with frequency? why skin effect occur

10710

Can anyone tell me how a 12v battery is transformed to 20,000v at the spark plug

11957

What is the difference between reciprocating & rotary motors in AC units, which is the best one in terms of operation.

10524

how to select cable size?

19252

what is the different betweem earthing and neutral?

8320

what is the term of desruptive voltage

7228

can induction motor run over the rated speed ?

ACC,

11706

Using 11000V/433V,3 ph,50Hz,500 KVA, what is the maximum capacity of motor in KW that can be connected and started at a single moment? Also explain about any calculations and formulas used in deriving the same.

5341

Un-Answered Questions { Electrical Engineering }

how works inductive &capacitive sensors?

1062

what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB

1000

what is the AC Plant and how can do the work with parts and picture tell us 150 Tr

1094

How to choose size of the cable w.r.to current carrying capacity ...

1206

How does a television work?

1245

What is the function of probe in cro?

165

I have a reading off 1.5ohms at my mem my main c/b is rated at 40/6 amps in a domestic house and i was told to change it to a b curve c/b is this ok

732

what happens to the supply voltage if there is any change in frequency?

4717

Iwould like to know barc interview questions

2096

Why is back emf used for a DC motor? Highlight its significance.

186

why we testing the core balance of the transformer before comissioning?

1085

If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??

1036

HOW TO CALCULATE HV TEST VOLTAGE FOR ELECTRICAL EQPT.

1206

Define branch?

148

exolain the star delta connection

1635