Difference between drift current and diffusion current?

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how on load transformer is chnage the Tapping ?

2 Answers  

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what is meant by the phrase 'static load' in case of shorting in a generator excitation system?

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What is C check in a diesel generator and what are parts and what has to be done during the C check

4 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.

2 Answers   KPTCL,

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if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

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What is the full form of AND,OR and other logic gates

7 Answers  

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how LT meggar works

1 Answers   Essar,

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why ohmas low not sutable to transformer.

1 Answers  

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What are the types of power in electrical power?

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I want to know which cable would be best to carry 125A current to a distance of 50m. Voltage is 3phase. Kindly share the formula with answer.

1 Answers   Medway Educational Consultant,

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why a fan starts rotating in the reverse direction when condenser gets damaged?

1 Answers  

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