Features

Reliability & High performance
  • Acquired KERI test report for KOEMA 0930/0931/0932 standard criteria
  • Arc removal time: within 5ms (when Arc Eliminator is applied)
  • Guarantees minimum # of operation of Arc Eliminator (electrically 2 times / mechanically 10 times)
Expandability
  • Arc protection for multiple power supply system through optical communication link between APRs
  • APS 1 set can protect up to 25 switchgears
  • Applicable to new installations and existing switchgears (Retrofit)
Flexibility & User-friendly design
  • Possible to select a solution that suits the customer situation
  • APR/AEC/AE in one panel


※ APR : Arc Protection Relay, AEC : Arc Eliminator Controller, AE : Arc Eliminator

Reliability & High performance
  • Acquired KERI test report for KOEMA 0930/0931/0932 standard criteria
  • Arc removal time: within 5ms (when Arc Eliminator is applied)
  • Guarantees minimum # of operation of Arc Eliminator (electrically 2 times / mechanically 10 times)
Expandability
  • Arc protection for multiple power supply system through optical communication link between APRs
  • APS 1 set can protect up to 25 switchgears
  • Applicable to new installations and existing switchgears (Retrofit)
Flexibility & User-friendly design
  • Possible to select a solution that suits the customer situation
  • APR/AEC/AE in one panel


※ APR : Arc Protection Relay, AEC : Arc Eliminator Controller, AE : Arc Eliminator

Specification

Rating Unit Specification
Rated voltage kV 7.2 / 12 24
Rated current A Regardless of current
(Current does not flow during normal operation)
Power frequency withstand voltage kV rms/1min 28 50
Lightning impulse withstand voltage kV peak 75 125
Rated short time current kA/s 40
Fault current bypass time < 5ms after confirming the accident
Installing Arc Eliminator Cradle method
Interlock When AE is in closing state, prevent cradle from racking in
(Improve worker safety)
Applied standard KOEMA 0932
Rating Unit Specification
Rated voltage kV 7.2 / 12 24
Rated current A Regardless of current
(Current does not flow during normal operation)
Power frequency withstand voltage kV rms/1min 28 50
Lightning impulse withstand voltage kV peak 75 125
Rated short time current kA/s 40
Fault current bypass time < 5ms after confirming the accident
Installing Arc Eliminator Cradle method
Interlock When AE is in closing state, prevent cradle from racking in
(Improve worker safety)
Applied standard KOEMA 0932

System Configuration

Load Break Switch
Components Main features
Arc protection relay · Quickly determining accidents using optical signal and current signal
· Arc Eliminator input and output command within 1.5ms
· CB Trip command output time reduction through applying high-speed semiconductor devices
  (HSO, High speed output)
  - HSO: ≤ 1.5 ms
  - Conventional contact: ≤ 15 ms
Slave unit Point · Arc accident detection and location identification through point sensor
Loop · Detecting broad area arc accident through loop sensor
Selective · Arc accident detection and location identification through point sensor
· Apply high-speed semiconductor contact point (HSO, High speed output)
· Arc protection can be performed solely without APR
Arc eliminator controller · AE operation by receiving APR operation command through optical communication
· Output of drive current within 0.6±0.1 ms
Arc eliminator · In case of an arc accident, bypass the fault current and extinguish the arc by grounding
  and short-circuiting the three-phase system
· Input within 3.5ms after receiving operation command (Including AEC operation time)
Load Break Switch
Components Main features
Arc protection relay · Quickly determining accidents using optical signal and current signal
· Arc Eliminator input and output command within 1.5ms
· CB Trip command output time reduction through applying high-speed semiconductor devices
  (HSO, High speed output)
  - HSO: ≤ 1.5 ms
  - Conventional contact: ≤ 15 ms
Slave unit Point · Arc accident detection and location identification through point sensor
Loop · Detecting broad area arc accident through loop sensor
Selective · Arc accident detection and location identification through point sensor
· Apply high-speed semiconductor contact point (HSO, High speed output)
· Arc protection can be performed solely without APR
Arc eliminator controller · AE operation by receiving APR operation command through optical communication
· Output of drive current within 0.6±0.1 ms
Arc eliminator · In case of an arc accident, bypass the fault current and extinguish the arc by grounding
  and short-circuiting the three-phase system
· Input within 3.5ms after receiving operation command (Including AEC operation time)