what are the different types of bus bar used at electrical work at shelter

3 Answers   Aster Teleservices, Costco,

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Comment on the working principle of operation of a single-phase transformer.

0 Answers  

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if neutral earthing is weak of a system then how can we improve it ? Technically explanation ??

1 Answers   CS, L&T,

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How we calculate airgap between phases & terminal box of the transformer? any formulae.

1 Answers  

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Why transformer rating is represent in KVA?

7 Answers   Bhel, Sonalika, Usha Martin, Wipro,

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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 is load shedding

4 Answers   KSEB,

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what will happen if the connections of protection ct reverse? will it burn the ct?

2 Answers  

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What do you mean by Stimulastion Test in Diesel Genarator / Why & when it's conducted ?

0 Answers   JLL,

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110 KW MOTER DOL STATER 240SQ.MM CABLE MOTER AND STARTER DISTANCE IS 110 METER WHAT IS VOTAGE IN MOTER END AND SYSTEM VOTAGE IS 415 V HOW I CAN CALCULTE

2 Answers  

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what current is taken from a double wound 500kva transformer

4 Answers  

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How size of Earth Strip is determined for a particular Fault current.

1 Answers  

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