what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

0 Answers   ABB,

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what are advantage and disadvantage of zener diode?

2 Answers   Infosys,

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A shopkeeper allows 10% discount on the price of an article and sells it for Rs 7,600. What is the marked price of the article?

1 Answers  

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What is vacuum circuit breaker.define with cause and where be use it device?

0 Answers  

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what is the difference between current rating and breaking current of an MCCB? and for a known load how to calculate the current rating of a MCCB?

1 Answers   HPL,

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What is the difference between grounding & earthing?

9 Answers  

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is it possible to have dc motors on single chip

0 Answers  

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Do I need a special Transformer to put 240 VAC 3 phase into it and and get 480 VAC 3 phase out of it to run a machine? Or, do I just use an ordinary step down transformer and step up the voltage? Thanks

2 Answers  

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what is the range of thermal overload and over current. Answer should be in percentage of current.

0 Answers   RMSI,

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Dear sir please mera ye sawaal hai ki rccb ka kya kaam hota hai please answer hindi me dizyega dhanyya waad

1 Answers  

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can anybody find out the result. I am lil bit confused about my equation.

1 Answers   Student,

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why the armature coil in dc machine is round?? swagat k.

1 Answers  

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