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Electrical Engineering Interview Questions

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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,

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

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

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.

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Un-Answered Questions { Electrical Engineering }

how works inductive &capacitive sensors?

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

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

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

How does a television work?

What is the function of probe in cro?

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

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

Iwould like to know barc interview questions

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

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

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 ??

HOW TO CALCULATE HV TEST VOLTAGE FOR ELECTRICAL EQPT.

Define branch?

exolain the star delta connection