Answer / taohidul

LT side = 250A
HT side = 9.9A

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3 Answers  

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why choke is provided in the centre of the tube light?

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what is encoder & its use?

1 Answers   ACC,

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how does this job compare with others you have aplied for?

0 Answers  

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how many power plants in andhra pradesh,how many types and there capacity

2 Answers  

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We have 11kV/110V three phase indoor potential transformer in 66/11kV Sub-station, where the failure of PT is frequently happening and the rating of the PT is 0.2 class accuracy, with primary star and seconday (two cores) star connected. Some experts has suggested to not to connect the PT Primary neutral to the ground because when transformer neutal NCT connection is loose; the faulty current will flow through the PT primary neutral, resulting into failure of PT. My question is: Is it necessary to remove the primary neutral connection of the PT from ground? if not, what would be the reason for failure of PT. Please guide me.

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16 Answers  

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what is the earth resistance

4 Answers   Micron Electricals,

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0 Answers   IIT,

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1 Answers  

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3 Answers  

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