Where double earthing is required? Is there any power specification to have double earthing?

10 Answers   Delphi,

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In some countries it is found that an Earthing Transformer is connected at the LV sides of the Transmission and Distribution Substation Transformers.Actually what is the purpose the Earthing Transformer?

1 Answers  

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deisel generators all elcetical calculation formule's

1 Answers  

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What is Biased Generator Differential Relay?

2 Answers  

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why we earth only one side of a power cable. And which side is advisable to earth.

1 Answers  

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When are the directional relays used?

0 Answers  

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What is the purpose of SOTF being used inspite of distance Protection given?

7 Answers   Alstom,

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how to commissioning the genset with amf panel?

0 Answers   Cummins,

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specific gravity of a battery?

6 Answers  

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How can we select a capacitor Bank.? i need a standard formula for that.?

3 Answers   ABB, Ace Info, HAL, IKK, MahaGenco,

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what do u mean by starting torque? how it should be for a good motor? what is the relation between starting torque and power factor? What is the relation between efficiency and starting torque?

2 Answers  

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how much the voltage & resistance should be ,between earth & neutral points.?& why?

6 Answers  

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