Answer / wasim

The main difference between circuit breakers and fuses is that circuit breakers can be reset while fuses operate only once and then must be replaced.So MCCB is best.On the other hand Circuit breakers offer an added level of convenience in the event of an inadvertent overload.

Answer / nur.asidik

it depends on voltage rating, current rating, and application, for motor, it is better to use fuse, why?. because we can select arcing current and arcing time.MCCB does not have. MCCB suitable only for static load

why it is mentioned as 8/10 mva transformer why not directly 8mva or 10mva transformer. please explain me the full detailed reason.

4 Answers   Qatar Gas,

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Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

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1 Answers   Siemens,

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Why the capacitor are connected in Delta(Three Phase) for power factor improvement ?

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