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    Devices in The Process Layer Series for Smart Substations That Can Be Independently Controlled
    Application Scenarios
    Applicable to smart substation process layers that are independently controllable across all voltage levels. Implements process layer acquisition, transmission, and control functions for smart substation lines, transformers, busbars, sections, and other intervals.
    Dongfang Electronics Corporation
    System Composition
    Includes merging units, intelligent terminals, body intelligent terminals, integrated merging and intelligent units, acquisition and execution units, etc.
    Functional Features
    • Independently Controllable
      Independently Controllable
      Adopts domestic chips and operating systems, reduces reliance on external supply chains, and enhances data security and system stability.
    • Reliability Optimization Design
      Reliability Optimization Design
      Dual-mainboard redundant design for acquisition and execution units, both mainboards independently handle analog loop acquisition, 5V transmission, GOOSE transceiver functions without interference, and can operate independently.
    • High-Precision Sampling
      High-Precision Sampling
      The phase difference between the cascaded voltage data output received by the device and the metering voltage/measured current data output collected by itself can achieve high precision.
    • Fast Trip Response
      Fast Trip Response
      The response time from receiving the protection trip command to hard contact action is ≤4 ms.
    Typical Cases
    • Xiaojian 110 kV new-generation high-reliability substation in Yancheng, Jiangsu
    • Fuji South 110 kV new-generation high-reliability substation in Qi County, Kaifeng, Henan