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GENERATOR: September 2007

Thursday, September 6, 2007

AIR CIRCUIT BREAKER (ACB)

Air circuit Breakers are normally used high current operation. ACB current rating 400A, 630A, 800A,1000A, ………………7100A

Normally ACB include following properties.

  • 3 , 4 poles ACB
  • Microprocessor based.
  • Short circuit current rate. (50KA,55KA,65KA….)
  • All protection settings including time setting shall be adjustable
  • Ambient temperature
  • Breaking Capacity
  • Spring charging motor
  • Shunt trip coil
  • Mechanical Reset button
  • Contact point indicator
  • Mechanical ON & OFF button