why do we prefer -48 volt instead of -24volt or -12 volt etc. ??

1 Answers  

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What is diversity factor in electric installations?

0 Answers  

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Is there a chance for a motor speed to become negative..?? What is the reason for such a phenomenon.? In that case does the motor works as a generator..???

1 Answers  

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what is ratio test?

1 Answers  

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HOW TO CALCULATE AMPs OF CURRENT TRANSFORMER IN HT Panel

0 Answers   MAB,

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will a fluorescent bulb work when dc is passed through it?? if not why??

4 Answers   TCS,

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how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you

0 Answers  

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what is auxilliary transformer??

3 Answers   Bhel,

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we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.

0 Answers  

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description about dry type transformers

0 Answers  

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what is the right cable size for 100 hp mpter.

3 Answers  

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What is Earth Fault and Over current Fault.

1 Answers  

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