While HT line put on to activate ACB in low tention panel VCB tripping instantly.why it happens

0 Answers   Engineering,

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How do apply electrical 'c'license......pls advice

0 Answers  

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L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

0 Answers  

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what is acceptance test in electrical engineering.

0 Answers   ABB,

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where used of HVDS system.

3 Answers  

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I am final year b.tech student..i applied for gate but i am not interested any of my engineering subjects. i am interested in management wise.. is my option correct after b.tech..

1 Answers  

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what is the difference betweem star connected motor & delta connected motor?

0 Answers  

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what is meant by armature reaction?

13 Answers  

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WHY PROTECTION CT IS USED NEXT TO METERING CT?

1 Answers  

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at meter room 50 hrc switch installed,but there are not get earthing proper,so what happen?and 11kv transformer out put going in to hrc main 400a three nog each? so earthing is require for all switch? (some customer made earthing at there home.)

0 Answers   Ebrahim Textile, Siemens,

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How to find the maximum load(in KW)in a big industry, having motors,lights,lifts etc..?

2 Answers   ME,

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Draw the line diagram of diffretial relay connected to transformer?

0 Answers   NTPC,

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