difference between ground,neutral and earth?..

4 Answers  

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on 22.03.2015 at 17:15hrs Y phase 66kV class Power Trf-2 Current transformer has flashed over and oil came out. The failed CT has been replaced on 24.03.2015 at 13:15hrs and the Trf has been charged in presence of RT Hassan after conducting the pre-commissioning tests. On the same day at 17:00hrs the commissioned CT has again flashed over and immediately the Trf  has been isolated from power supply. It is confirmed the secondary is not opened and checked the earth integrity and is found ok. Here what would be the reason for the CT failure? 

2 Answers  

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Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.

0 Answers   VECL,

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Find defination of KVA convert in to KW.

4 Answers   ABB,

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11kv has three live wires how much voltage is in its single wire(leaving the other two wires)

13 Answers   Power Grid,

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We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks

0 Answers  

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Please provide me detail cable voltage drop calculation

1 Answers  

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my first school?

1 Answers  

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Which colour of earthing wire

1 Answers   Aravali,

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could mail me the question papers for the test.

1 Answers   ONGC,

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why high speed tripping relay will be used in tripping circuit why not normal relay

0 Answers  

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If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

2 Answers   Focus,

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