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Electronic welding machine separate earthing provided or not?

1.where in India the maximum transmission voltage is operated? 2.what the methods are used to cool down the transformer?give the specific ratings of the transformer & specific cooling process. 3.how zero & negative sequence reactances are formed in a rotating machine when fault occur in the system?

2 Answers   IES,

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Dry type transformers

0 Answers  

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Compare salient pole and cylindrical rotor machines.

0 Answers  

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what's the reson that,Load is not same on VFD I/P and O/P Side.whenever DOL condition load is same I/P and O/P side.

1 Answers  

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In what way does the variable ratio-arm improve the usefulness of the wheatstone bridge?

1 Answers  

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what role does a star point or neutral point play in a star connected system?

4 Answers  

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Difference between HRG and NGR. Are they both the same thing

0 Answers  

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Hello sir This is prakash from bangalore i have a doubt why we have to maintain DG power factor in the range 0.78 to 0.8 Perhaps i f it is increased means what will happen in DG

3 Answers  

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What technology is used in latest generators?

0 Answers   IBC,

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Why D.C Voltage used in Meggering...as well as in Hipot test? why not A.C?

2 Answers  

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we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?

0 Answers   Afflatus Grauver Pvt Ltd,

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why humming sound occured in HT transmission lines.

9 Answers   GE,

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