if sf6 gas low in gis what will happen

0 Answers  

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What are high pass filter and low pass filter? and What are the flowmeter ?

0 Answers  

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why voltage rating of transformers are in multiples of 1.1?

3 Answers  

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why we use choke in tubelights nad other lighting fixer

1 Answers  

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what is the purpose of silicon dropper used in battery charger?

0 Answers   KNPC,

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When will you multiply and devide with derating factors to the actual value while sizing the cable?

0 Answers  

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how to CHECK CT AND PT AT THE FAULT OCCUR IN GENERATOR RELAY PANEL .

0 Answers   Birla,

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What is an Isolation Transformer? Where it will use?

3 Answers  

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HOW TO CALCULATE UPS BATTERY BACKUP TIME

3 Answers   HSBC, VRVS,

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mcb kitna type ka hata hai aur uska pura naam please bataye

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.

2 Answers   KPTCL,

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what is the principle of the single phase energy meter? and,what is the advantages and disadvantages of single phase energy meter?

0 Answers  

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