Why use only DC supply to charge batteries why not AC Supply??

3 Answers   APC, Emerson,

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what is is the potential diffrence between two phase ?

3 Answers   Bhel,

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Wat is the best to use in a generator a 6.5kva or a 7 kw

4 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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what is V=4.44FBN, THIS 4.44 ONLY U GOT the voltage in term sof 11, 22 etc this 4.44 u will get from form factor which has a value of 1.11

1 Answers  

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The screw thread commonly used for transmission of motion is one of the following types of threads

0 Answers   Caterpillar,

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What is ideal IR values for ground and neutral.

0 Answers   Hindustan Power Projects,

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what is the relative size of single and three phase?

0 Answers   Student,

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What is fault level?How it is calculated and how it is Expressed?

2 Answers  

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What is the difference between reciprocating & rotary motors in AC units, which is the best one in terms of operation.

2 Answers   MacLellan,

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What is the diference between increased saety motors and non sparking motors?

1 Answers  

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how the transmission voltage ranges are decided like 11kV,33kV,66kV,132kV,220kV,400kV,725kV.... why not choose the transmission line voltage as 23kV,164kV,440kV?? what's the reason??

3 Answers  

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