Showing posts with label Where it can be used?. Show all posts
Showing posts with label Where it can be used?. Show all posts

Thursday, March 3, 2016

What is the difference between MCB & MCCB, Where it can be used?

  • MCB is miniature circuit breaker which is thermal operated and use for short circuit protection in small current rating circuit.
  • Normally it is used where normal current is less than 100A.
  • MCCB moulded case circuit breaker and is thermal operated for over load current and magnetic operation for instant trip in short circuit condition. Under voltage and under frequency may be inbuilt.
  • Normally it is used where normal current is more than 100A.

What is transformer ?

What is transformer ? 1.Transformer is a static machine. 2. It transfers AC current from one voltage to another voltage at same freq...