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PCS-924S Stub Differential Relay
  • PCS-924S is a fully numerical stub differential relay which is mainly designed for protecting T-zone of one and a half breakers arrangement. The protection function of PCS-924S comprises of current differential protection, phase overcurrent protection and feeder line end fault protection. With its flexibility and the powerful PCS-Studio configuration tool, PCS-924S offers future-oriented busbar solutions with high investment security and low operating costs.

  • Protection Communication Supervision Recording Measurement
    • Current Differential Protection (87STB)

    • Feeder Line End Fault Protection (50FLE)

    • Phase Overcurrent Protection (50P)

    • Support of various protocols

    Ø  Modbus

    Ø  DNP3

    Ø  IEC 60870-5-103

    Ø  IEC 61850 Ed1 & Ed2

    Ø  IEC 62439 Parallel Redundancy Protocol (PRP)

    Ø  IEC 62439 High-availability Seamless Ring (HSR) Redundancy Protocol

    Ø  IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)

    • Support for digital substation

    Ø  Extendable quantity of communication interfaces

    Ø  Support of IEC 61850 MMS Server

    Ø  Support of IEC 61850-8-1 GOOSE

    Ø  Support of IEC 61850-9-2LE SV

    • Up to four 10Base-T/100Base-TX copper Ethernet ports

    • Up to four 100Base-FX optical Ethernet ports

    • Two RS-485 serial ports for communication or printer

    • One RS-485/TTL serial port for clock synchronization

    • CT circuit supervision

    • Self-diagnostic

    • DC power supply supervision

    • Event recorder including 1024 disturbance records, 1024 binary events, 1024 supervision events, 256 control logs and 1024 device logs.

    • 64 disturbance waveforms records (The file format of disturbance recorder is compatible with international COMTRADE file.)

    • 64 high-frequency waveforms records (The file format of disturbance recorder is compatible with international COMTRADE file.)

    • Current measurement at a 1.2kHz sampling rate

    • Current measurement at a 9.6kHz sampling rate

    • Differential current calculation

    • Sequence component calculation

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