HV AC Circuit breakers – IEC62271-100

Scope and Applicability

  • V > 1000 V
  • 50 & 60 Hz only (no 16 2/3 Hz)
  • 3- and 1- phase circuit breakers (no 2-phase CBs)
  • No traction breakers (IEC77)
  • No generator circuit breakers (IEEE C.37.013)

New Definitions

  • 3.1.126 NSDD
  • 3.1.237 restrike performance (restrike free CBs no longer exist)
  • 3.4.112-117 circuit breakers type E1-E2 for electrical endurance, M1-M2 for mechanical endurance and C1-C2 for capacitive switching performance
Title:HV AC Circuit breakers – IEC62271-100
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HV AC Circuit breakers - IEC62271-100


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