what is REF relay?

1 Answers  

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List out the the types of Mounting Light fixture?

0 Answers   HLL,

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why PT transformer primary r the grounded?

2 Answers   L&T,

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What is full form of G.O.D in 11kv distribution?

10 Answers   GOD, MSEB, Shyam Indus Power, STL,

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my UPS suddenly goes off and all panel light also blow off.This happens even main electric supply is not interrupted.After some time it automatically starts functioning normally.Batteries are new.

0 Answers  

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What will happen 50 HZ motor when you will give 60 HZ?

7 Answers   Bhushan Power Steel,

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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.

2 Answers   KPTCL,

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what are the losses of capacitor??

1 Answers  

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What are the main factors to be considered(In terms of energy conservation) while selecting a new air compressor?

1 Answers  

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Why transformer is not rotating?

20 Answers   BARC, Nerolac,

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Why Generator rotate only clock wise ?

8 Answers   L&T,

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what will happen, if both relay contact has live supply, and coil of relay activated

1 Answers   AVS,

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