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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 }

why we can use 1 to 5V dc

where lt & ht capacitor used

in control panel, how can i measuring the distance between one bus bar to another bus bar. then now only for bus bar. in mpcb and contactor also. that means one mpcb to another mpcb how much distance? how can i calculate that.

how to determine motor size for a fan application?

solar energy light efficiency & disadvantages?

how load of a turbo generator can be increased

What are the different types of controllers?

i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com

We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.

Why can't we parallel Voltage transformer secondary circuits?

RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV

Can anyone explain me about the RLC based Impulse high voltage generator and how to and operation of Series resonant High voltage reactor...?

How many sprinklers should be in one pipe line?

what is the main function of capacitors in mccs.

Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used