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  • PCS-9613 Differential Relay

  • The PCS-9613 relay is a current differential protection and overcurrent protection, control and monitoring unit with auto-reclosing function for distribution feeder lines in solidly grounded, impedance grounded, Peterson coil grounded and ungrounded system.

    This relay can fully support the IEC61850 communication protocol and GOOSE function, and can completely meet the demands of a modern digitalized substation.

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Protection and control
  • Current differential protection (87L)
  • Six-stage phase overcurrent protection (50P/51P/67P)
  • Six-stage zero sequence overcurrent protection (50G/51G/67G)
  • Negative sequence overcurrent protection (46)
  • Broken conductor protection (46BC)
    The ratio of negative-sequence current to positive-sequence current (Ι2/Ι1) is used to detect the broken conductor.
  • Breaker failure Protection (50BF)
  • Thermal overload protection (49)
  • Undervoltage/Overvoltage protection (27/59)
  • Switch-onto-fault (SOTF) logic.
  • Synchronism check (25)
  • Auto-reclosing (three-pole) (79)
  • Mechanical protection(MR)
  • Remote control and measurement.
  • Voltage and current drift auto adjustment.
    Monitoring and Metering
    • Tripping circuit supervision.
    • CT failure detection logic.
    • VT failure detection logic.
    • Synchro-check voltage failure supervision.
    • Self diagnostic.
    • Fault Recorder.
    • Total 1024 SOE, including tripping, alarm, binary input change and human operation reports.
    • Total 64 oscillograms. (Compatible with COMTRADE format)

    Communications
    • Up to four 10Base-T/100Base-TX (RJ45) ports or two 100Base-FX ports with IEC 61850-8-1 MMS and GOOSE for non-time-critical message, IEC 60870-5-103 over TCP/IP or DNP 3.0
    • Two RS-485 rear ports with IEC 60870-5-103
    • One RS-485 rear port for clock synchronization
    • One RS-232 rear port for printer
    • 1 faceplate RJ45 port for testing and setting
    • Clock synchronization via pulse, IRIG-B and SNTP
  • Fully recognizing the technology to integrate six functions into one device: protection, measurement, control, remote signaling, merging unit function and remote module functions, to improve the reliability.
  • Definite time and inverse time characteristics of overcurrent protection are both provided.
  • Overcurrent protection could be supervised by directional element and voltage elements.
  • Constantly measures a large amount of analog quantities, or receive the sampled values from the electronic transformers, such as phase voltage, phase-to-phase voltage, neutral voltage, phase current, neutral current, active power, reactive power, power factor and frequency.
  • Monitor and record the operating times of opening/ closing circuit breakers.
  • Various methods of GPS time synchronization are supported, including SNTP, pulse per second (PPS) and IRIG-B synchronization.
  • Equipped with Ethernet ports with the IEC 61850 protocol and RS-485 ports with IEC 60870-5-103 protocol.
  • Complete event recording function is provided: 64 latest protection operation reports, 1024 latest supervision records, 1024 latest control operation records, 1024 latest user operation records and 1024 latest records of time tagged sequence of event (SOE) can be recorded.
  • Can communicate with a SAS or RTU via different communication intermediates: Ethernet network, RS- 485 serial ports. The communication protocol of this device is optional: IEC61850, IEC60870-5-103 or DNP3.0.