HOw can we calculate power factor at HT side.

6 Answers  

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what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?

0 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 delta stare switch?

1 Answers   Samsung,

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protection used for alternator , feeder , transmission line

3 Answers   NHPC, Perfetti,

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what happens to the supply voltage if there is any change in frequency?

1 Answers   Gridco,

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why is only third harmonics is dangerous for electrical equipments?

3 Answers  

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Hai, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to yuva_polisetti@yahoo.co.in

0 Answers  

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how to interlock 3 incomer-ACB,1 buscoupler ACB,... pls answer this question and if possible send me the ckt diagram..haifriends2910@gmail.com

0 Answers  

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i wasted one year for the job after completed my btech what can i say about 1year time in interview

0 Answers   Infotech,

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How much width of the land shall have to be left below the EHT line of 440 kv as per the rule. i am told that a corridor of 35 M width is to be left free below 220 kv line. please confirm

1 Answers  

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What is d diff. btw Online & Offline UPS???

4 Answers   Emerson,

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