list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.

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Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

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bus bar design conditions and sizing pls tell me quickly

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If We are converting the SINGLE PHASE AC into THREE PHASE AC by using STATIC CONVERTERS , then How do we bring the frequency to 50 hz??

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what the different between earthing and grounding?

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Why dnt we generate 5-ph or 7-ph supply like as 3-ph supply

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can anyone help me regarding bout Electrical designs and calculations .. which text book should i follow as i am a trainee engineer.Description of my work which is Electrical designs like cable sizing, lighting, lightning, Gensets sizing, motor sizing, transformer sizing, generator sizing, circuit breakers, PDB MCC PCC SLDB MLDB panels, Single line diagrams mainly, substation desings, cable routing and layouts, reactive power compensations, power factor improvement, voltage drop calculations, power generations, power transmission, power distributions all calculations.Please help me

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Control cables in S's will carry 1000v which is AC R DC? Pls answer me 

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Please explain open transition and closed transistion system in Star delta Starter?and also the state difference of both?

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hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

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what is the principle of motor

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What do you understand by oldham's coupling ?

0 Answers   Godrej,

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