ORiON 12 kV Withdrawable Switchgear Generator Synchronous Circuit Breaker

SPE Energy Utilising the ORiON switchgear developed a standard compact Generator Synchronous Circuit Breaker.

The panel comes complete with Microprocessor relay providing G59 protection incorporating the following function:

  • G59
  • Directional power
  • Differential
  • Reverse power with time delay
  • Over/under voltage
  • Under current
  • Unbalanced current / voltage
  • Instantaneous current
  • Directional overcurrent
  • Timed overcurrent
  • Earth fault
  • Restricted earth fault
  • Rocof vector shaft

Accommodation for

  • Busbar voltage transformer
  • Circuit side voltage transformer
  • Circuit side surge arrestor

Cable Accommodation

  • Busbar side
  • Cable side

Specification:

  • Rated voltage up to 12 kV
  • Rated short circuit breaking current 25 kA
  • Rated short time current 3 seconds
  • Rated peak withstand current 62.5 kAp
  • Rated peak making current 62.5 kAp
  • Rated normal current 400/630, 800, 1250A
  • Rated basic impulse level 75 & 95 kVp
  • Rated frequency 50 Hz
  • Rated power frequency 28 kV for 1 minute
  • Rated arc fault containment 25 kA for 1 sec FLR
  • Mechanical endurance class M2 10,000 operations

Applicable Standards:

  • IEC 62271 – 100
  • IEC 62271 - 200
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