what size of copper busbar use for 11kv 630A

3 Answers   ABB,

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What is working of Trip Ckt.Supervision Relay?

1 Answers  

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In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail

1 Answers  

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How to calculate cable rating for 3 phase supply?

0 Answers  

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What is meant by system?

0 Answers  

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What are the tests to be conducted in the electrical installations

1 Answers  

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In hydel power plants, L.A's, S.C's are placed inside the control panel boards. what is the purpose? [already the total body was earthed to ground.]

0 Answers  

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what is phase shifting transformer.

2 Answers  

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Can we pass 11kv power in 1.1kV voltage grade cable.If not why?.

3 Answers  

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There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

1 Answers  

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Merz-Price circulating current principles is more suitable for

1 Answers   Student,

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why we use MV panels??? what's r all the needs

4 Answers  

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