what is the technical diffrences of mccb and acb

11 Answers   TransWorks,

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why ac supply neutral should earth not in dc (-)

2 Answers  

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we have one ups its neutral is not earthed.its one distribution MCB has a earth fault.but we can not put off any MCB.so how to find out that in which circuit is earthed without isolating the breaker.

3 Answers   CFCL,

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any body know about lighting arrestor. how to determine the height of lighting rod from top of bulding and how many area it cover.

1 Answers  

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what is the meaning of the parameters labeled on the surge arrestor like 150/20 ???

3 Answers  

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how can we calculate the cooper armed cable size if the protection load of main fuse is 80 ampere.

1 Answers  

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what can i do line to line fault

4 Answers  

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in trains i have seen the terminal which is connected at the top of the train is positive .where is negative ? track? i dont think so

9 Answers  

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what is lap & wave winding

1 Answers  

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what things to be considered when designing UPS

0 Answers   Aplab, Veta Kipawa ICT Center,

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Explain difference between aluminium coductor & copper coductor.

4 Answers  

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what is the difference between capacitive voltage transformer & inductive voltage transformer.

3 Answers  

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