what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

0 Answers   ABC,

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What are the different methods of improving power factor,especially in Wind Sector

2 Answers   Suzlon,

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What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.

1 Answers  

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Define the three phase formula fuse.

0 Answers   ABC, Gayatri, UPCL,

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Pl.brief me about Electrical power distribution system from Main generating station to Industry.What is the use of in between station.

0 Answers   ARDE,

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what is the use of vector group in transformer. means what r the application of various vector groups?

5 Answers  

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why plc need seprate earthing?

2 Answers   ABB, Whirlpool,

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A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.

0 Answers  

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what is difference between 5A and 100A CT constructional wise and operation?

1 Answers  

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why some transmission lines have 7 wires n why some have 3 n 4??

3 Answers  

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if we give connection of 100watts bulb through a single phase energy meter ,the disc of a meter rotates why it happens?

1 Answers  

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what is the difference between unarmoured & Flexible cable? How to identified?

0 Answers   Priyanka Electricals,

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