Answer / rajesh

I think to prevent collision of two sourse supply as for a.e power grid and DG generated supply.

Please guide if answer is wrong.
Thanks

Answer / k.prakashchandra

It is reverse power relay i.e . directional wower relay

What is called limb of a transformer?

0 Answers  

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1.what is surge used in power system 2.what is switching used in power system 3.what is lightning used in power system

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wat s reactive power.... how could it be compensated.....

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Which of the following connection is best suited for 3-ph, 4 wire system A delta-delta B star-star C delta-star D star-delta

2 Answers  

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what is the minimum winding resistance of 30hp compressor, to run or to switch on

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why we use post insulators in no ofstacks at substation for supporting equipment ? why we not use single post insulator

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what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

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Name different types of fault and which instrument is used to measures earth,short,open cicuit fault?

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when we r using 3.5 cable for a bldg. and put laod on each phase using the neutral and neutral is the return paht for the phase so the current of the neutral must be Ir+Ib+iY (return).But the size of the netural is .5 as comper to the phase.

2 Answers  

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in india why 50 hz and 220 volt taken as standard rating for equipments whereas in US 100hz and 110v is consided as standard rating.is this method save power.

5 Answers   Wipro,

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technical questions asked by visa steel interview plg get me!

1 Answers   LG, Visa Steel,

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