Why AC & DC capacitor are use in UPS ??????????????????

0 Answers   Sanghi,

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ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

0 Answers  

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In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

0 Answers   Kaytech,

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what is W.T?specify the acceptable range?

0 Answers  

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What is the difference between Rectifier & Converter?

12 Answers   Bajaj,

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why core is useful for a transformer ?and also in its operation ?

0 Answers  

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UPS battery Back time = no.of Batteries * Ah of the Battery / output KVA * 130 ? what is the 130 means ? can any one help? because all are using this formula how its came 130?

2 Answers  

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what is the roll of power factor in induction motor.

3 Answers   Hindalco,

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When do you use a VFD motor?

3 Answers  

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difference between Ac and Dc mcb ????

0 Answers  

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How much area is covered by a single lightning arrestor to protect object from lightning strokes ?

1 Answers  

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what is the diff. b/w balanced and unbalanced load..?

12 Answers  

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