Microcomputer-based Solution for Preventing Electrical Misoperation in Substations

Industry Background

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  Incomplete anti-misoperation interlocking

  Currently, the mechanical interlock of primary equipment cannot achieve interlocking between devices in different bays, and electrical interlocking is insufficient to prevent misoperations such as entering the wrong bay or attaching a grounding wire to live equipment.

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  No simulation rehearsal measures

  There is a lack of simulation rehearsal technical measures, failing to meet the standard requirement that "before disconnector operations, a verifying simulation rehearsal must be conducted, and the operation should only proceed after no errors are found."
  

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  Lack of control over operation permissions

  The equipment lacks control over exclusive operation permissions. When multiple teams are performing cross-operations, there is a safety risk of simultaneous operations on the same equipment at the station control level, bay level, and equipment level.

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  Low lock security

  Traditional pin tumbler and pentagon-style interlocking locks are easily duplicated, and the lock cylinder's resistance to prying and theft is low, allowing technical tools to easily unlock them.