Answer / amit2009786

by donig this reluctance becomes hiigh due to air and increase in magnetising current

What is the lifetime of a Thyristor? Is there a recommended lifetime for thyristors after which they should be replaced?

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Which system is best for industries 3ph 3w or 3ph 4w?

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1- What is the Polarization Index number be good for 15KV 3c#500MCM electrical cable? 2- Can I use the IEEE Std 43-2000 to perfom the PI test? Thanks

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How to calculate impedance volt in Transformer?

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In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?

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why always out of the 3 phase(RYB) of supply, in Y phase w.r.t the voltage is higher? on R & B phase the voltage will be lower as compared to Y phase?

1 Answers  

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What is harmonics in AC waves. How it is generated? How it will effect the system network? how can eliminate it?

2 Answers  

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How do u term the word 'OF' in Megger Testing???

2 Answers  

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why power factor is important?

6 Answers   Dalkia, MGC,

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What should the transformer connection of a 11/220 kV step up and 66/11 kV step down transformer ?

4 Answers   CGL,

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what will happen if synchronous machine rotor fed from single phase ac supply 

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How to calculate D.C load current?

3 Answers  

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