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PCS-9656 Arc Flash Relay
  • The PCS-9656 Arc Protection provides a fast busbar protection in substations, power plants and industrial enterprises. In case of short circuit faults in switchgear, the arc faults in the protected area which is covered by arc sensors can be quickly cleared via arc protection, avoiding harm to personnel and assets. The arc protection uses arc sensors to detect the arc light caused by short circuit faults.

    PCS-9656 Arc Protection can acquire the incoming line currents and arc flash signals via localized arc sensors to reliably discriminate the arc faults. Up to 12 current inputs can be integrated in one unit. It integrates the protection calculation, tripping output, event recording, and human-machine interaction etc. This device can be installed in a protection panel or local switchgear.

    Arc Sensor is locally installed in appropriate points on the case of the cubicles inside of the switchgear, to transmit arc signals to arc protection, which will perform optic-electric conversion. The optical signal transmission between sensors and arc protection can avoid electromagnetic interference and improve reliability during transmission.

  • Protections Monitoring Measurement Recording Communication
    • Arc Protection

    • Breaker Failure Protection for up to 6 breakers (50BF)

    • Arc intensity supervision

    • ŸCT failure supervision

    • ŸTransfer/Receive module supervision

    • ŸSelf-Diagnostic

    • Phase current: Ia, Ib, Ic

    • Sequence current: positive/negative/zero sequence current (I1, I2, I0)

    • Phase angle: Ia^Ib, Ib^Ic, Ic^Ia

    • Ÿ64 trip reports

    • 1024 self-diagnostic reports

    • Ÿ1024 logging reports

    • Ÿ1024 SOE

    • 64 fault records with oscillograms compatible with COMTRADE

    • ŸUp to four (4) Ethernet ports for automation (Optional)

    • ŸTwo (2) RS-485 serial ports for automation

    • ŸOne (1) faceplate RJ-45 port for commissioning

    • ŸComplying with IEC 61850-8-1 MMS, IEC 60870-5-103 and DNP 3.0

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