OpenPLC Application Case: Intelligent Substation Protection System
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BLIIoT focus on Industrial AI Edge Computing Gateways and Industiral IoT Gateways and Solutions for industry 4.0 and Smart manfuacturing. > BLIIoT showcases industrial AI Edge computing solutions and Industrial IoT solutions for digital transfromation, smart manufacturing, smart factory, and smart cities. > Smart Energy > OpenPLC + ARMxy Application Case: Intelligent Substation Protection System
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OpenPLC + ARMxy Application Case: Intelligent Substation Protection System

Intelligent substation protection using ARMxy SBC and OpenPLC with real-time monitoring, relay integration, and remote fault diagnostics for 110kV systems.
OpenPLC + ARMxy Application Case: Intelligent Substation Protection System
Case Details

Scenario:
Real-time monitoring and protection control for a 110kV intelligent substation.

Configuration:

  • ARMxy main controller

  • X-DI module (for circuit breaker/disconnector status)

  • X-RS485 module (for communication with protection relays)

Implementation:

  • The DI module collects:
    – Circuit breaker auxiliary contact status (110VDC, converted to safe voltage levels)
    – Gas relay signals (dry contacts)

  • RS485 module connects to protective relays and uploads key data to the dispatch master station using supported protocols

  • Fault waveform data is locally recorded for traceability

  • OpenPLC handles the control and logical operations

Advantages:

  • Dispatch centers can remotely view substation status in real time

  • X-Series DI boards support wide voltage input (-10V to 10V), allowing flexible adaptation to high-voltage contact interfaces

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