in an industrical wiring, why we are using lighting DB and Power DB separately?

3 Answers  

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Why the earth to phase voltage is high 250 compare to other two phases

0 Answers  

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What are the advantages of instrument transformer?

0 Answers  

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Dear sir, How to calculate 3.5 core pvc aluminium armoured cable meter wise,give with best examples.... please help me in this regards....

1 Answers   Modi Builders,

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In a 3 phase,400v,4 wire system, 2 incandescent lamps, one having 230v,100w and the other 230v,200w are connected between r phase- neutral and y phase-neutral respectively. If neutral wire breaks which lamp will fuse first and why?

3 Answers   Eskom, SSC,

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what is the role of reactive powerin transmission and distribution?

3 Answers  

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why to use freewheeling diode ( diode in revers bias mode) across dc coil

2 Answers  

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why control circuit voltage always chooses to be 110v and 220v? and in where it is 110v and 220v? and in where it AC and DC?

2 Answers  

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Based on what the rating of machines are provided??(ANswer should in single word)

19 Answers   Asian Paints, Bhel,

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In ACS 1000 drive we used 12 pulse convertor.Why dont used 6 pulse or 3 pulse convetor

1 Answers  

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What is stray looses?

2 Answers  

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seromechanism

4 Answers   Bhel,

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