I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

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1000kva = how much kvar

3 Answers  

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what is the significance of positve n negative voltage regulation .on alternator

1 Answers   TCL,

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Do closed loop systems require manual input?

0 Answers   GE,

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Why are the cores of large transformers built up of circular transactions ?

0 Answers  

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what is phase to phase fault? what is line to line fault?

2 Answers   Phoenix Technologies,

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what is different between DIGITAL and ANALOG?

2 Answers  

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for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

0 Answers   Power World,

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I have a 600VA UPS for computer only. It holds for 20minutes only. 1. Can it be upgraded for longer period.? 2. Can it be used for one ceiling fan and a tube light? If yes, how to upgrade?

11 Answers  

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if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

0 Answers  

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Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?

0 Answers  

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What is maximum load capacity of 800 VA inverter?

5 Answers  

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