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

I need a 33/690V Dry type transformer.How to select IP class for this transformer.This will be an outdoor transformer located in a highly polluted environment.

3 Answers  

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how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating

0 Answers  

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State four advantages of hydro power station over nuclear power station.

1 Answers  

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What makes the difference between 50Hz supply and 60Hz supply which one is economical? What is the use of using increased frequency?

5 Answers   ABB,

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how much the voltage & resistance should be ,between earth & neutral points.?& why?

6 Answers  

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How to calculate the phase to phase clearness of HT /// LT bus bar?????

0 Answers  

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upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

0 Answers   ABC,

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what are the pecularity of shaver sockets ?

0 Answers  

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State kirchoff current law?

0 Answers  

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If one ct is reversely connected in Y system what will effect in kwh and kvarh meter?

1 Answers  

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how moving coil indicator works?

1 Answers  

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any one have papers of hpcl or sailof ELECTRICAL ENGG.

1 Answers  

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