Answer / zore mahesh baburao

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RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV is ok ,but haw to calculate the KA rating?

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what will happen when a electric bulb is connected between two phases.it will glow or not

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How to select AC3 duty contactor for DOL & Star-Delta starters

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This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

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What is sinusodial & non sinsodial current

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if we want ot select cable size with reference to load current it take than what is the formula and it is same for aluminium or copper?

3 Answers  

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what is the difference in between short time and continuous rating?

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Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar

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what is the minimum distance between substation wall and LT panel outer surface?

3 Answers   L&T,

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block diagram of 2 ups system connected in parallel mode?

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1.what is the difference between MPCB and MCB ? 2.what is the difference between MPCB and MCCB ?

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How can we deside Short Ckt level of electrical System,Breakers etc.please provide formula to find SC of HV side & LV side

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