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The traditional disconnector operation process involves filling out operation tickets, simulating rehearsals, on-site operations, status verification, task feedback, and archiving operation tickets. Each process requires review, confirmation, and rechecking, making the process cumbersome and complex.
Operating personnel are required to perform on-site tasks such as operations and status verification. For some complex operations, the number of steps involved exceeds one hundred, with operation times lasting several hours. This results in high workload and significant physical and mental stress for the personnel.
When operators perform operations or status confirmation on primary equipment, they are at risk of electric shock from mistakenly entering live bays, as well as risks of equipment explosion, fire, and other threats to personal safety.
The traditional disconnector operation process requires operators and supervisors to perform ticket reading and repeating before operations can proceed. Each step requires on-site verification by the operator, and switching on/off operations can take about an hour, leading to low operational efficiency.
Traditional disconnector operations face challenges such as complex procedures, low operational efficiency, and high risks of misoperation, making them unable to meet the demands of lean substation management and the digitalization of power grids. The JOYO-A1 substation one-click sequence control system is built on integrated substation monitoring and intelligent anti-misoperation technologies, combining magnetic sensing, micro-motor control, and secondary anti-misoperation technologies. It creates a new generation of one-click sequence control system with "comprehensive state awareness, full remote control of equipment, comprehensive anti-misoperation verification, and full coverage of operations," providing intelligent, efficient, and safe substation operation solutions for customers in the power grid, power plants, and petrochemical industries.
Comprehensive status awareness
By using magnetic sensing technology, DC electric field sensing technology, and RFID IoT technology, the system not only achieves "dual confirmation" for primary equipment such as circuit breakers and isolators (grounding switches) but also collects the status of secondary equipment such as control panels, switches, and handles, providing full state awareness for substations.
Full remote control of equipment
Based on the one-click sequence control of primary equipment, the system applies micro-motor control technology and intelligent sensing technology to secondary equipment such as bus tie power supplies, reclosing control panels, and voltage-parallel handles, achieving full remote control of secondary equipment, such as switches and handles, as part of the one-click sequence control process.
Comprehensive anti-misoperation verification
Expanding from primary to secondary anti-misoperation verification, the system establishes a comprehensive anti-misoperation logic, covering primary-to-primary, primary-to-secondary, secondary-to-secondary, and secondary-to-primary verification. During the one-click sequence control simulation and step-by-step execution, the system performs real-time anti-misoperation logic verification for the coordination of primary and secondary equipment, significantly enhancing the safety of one-click sequence control operations.
Comprehensive operation coverage
Currently, the sequence control operations of State Grid and China Southern Power Grid primarily achieve switching between operational, hot standby, and cold standby states. This system, through comprehensive monitoring of secondary equipment status and remote control with dual confirmation of grounding disconnectors, can achieve one-click sequence control switching among operational, hot standby, cold standby, and maintenance states, further enhancing the O&M efficiency.
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Traditional disconnector operations face challenges such as complex procedures, low operational efficiency, and high risks of misoperation, making them unable to meet the demands of lean substation management and the digitalization of power grids. The JOYO-A1 one-click sequence control system for substations is built on integrated substation monitoring and intelligent anti-misoperation technologies, combining magnetic sensing, micro-motor control, and secondary anti-misoperation technologies. It creates a new generation of one-click sequence control system with "comprehensive state awareness, full remote control of equipment, comprehensive anti-misoperation verification, and full coverage of operations," providing intelligent, efficient, and safe substation operation solutions for customers in the power grid, power plants, and petrochemical industries.
Based on microcomputer anti-misoperation technology, the safety management and control system for substation operation and inspection targets every aspect of integrated O&M workflows, including switching, maintenance, and repair operations. Through process refinement and system applications, combined with existing innovative technologies, it establishes a platformized, networked, and intelligent substation O&M safety management and control system. This platform fully covers safety control for O&M and repair across multiple disciplines, effectively improving work efficiency, reducing operational costs, and enhancing power safety production levels.
To meet the anti-misoperation requirements of one-key sequence control in substations, relying on nearly 30 years of experience in anti-misoperation product development, the system achieves dual verification of sequence control anti-misoperation while introducing new features such as directional authorization unlocking, grounding wire status collection, and graded and zoned lock management. These improvements enhance the safety and efficiency of on-site operations.
The magnetic induction double-confirmation device mainly consists of a magnetic induction sensor and a receiving device. The magnetic induction sensor uses a non-contact induction principle to detect the status of the disconnector and transmit the status information to the receiving device. The receiving device is installed in the control cabinet, terminal box, or independent cabinet, achieving logical calculation and status output of the disconnector status signal. The magnetic induction double-confirmation device features safe and reliable non-contact detection, easy installation, and suitability for various equipment types and operating environments. It accurately identifies the open/close status of disconnectors, providing a more secure and reliable technical guarantee for one-click sequence control.
Based on the new generation of centralized control systems and PMS, build anti-misoperation applications for centralized control stations, intelligent ticketing micro-applications, and mobile applications, linking the production control area, management information area, and internet area. This will establish a digital workflow for disconnector operations, a mobile execution model, realizing intelligent ticketing, real-time anti-misoperation throughout the process, unlocking and closing the loop in management, and unified management of operational information, which enhances the quality and efficiency of disconnector operations at centralized control stations and ensures the safety of on-site operations.