Core Insights - The article highlights the successful completion of the smart switch upgrade for all 10 kV distribution lines by the Nanfang Electric Power Guangxi New Power Group Mengshan Power Supply Bureau, achieving 100% coverage and marking a significant advancement in distribution automation levels [1] Group 1: Project Overview - The smart grid transformation project for 10 kV distribution lines began in 2020, with a total of 253 smart switch devices deployed that meet the three remote standards (remote measurement, remote signaling, remote control) [1] - In 2023, the bureau initiated an upgrade from the "three remote" to the "four remote" system, which includes remote adjustment capabilities [1] Group 2: Technical Challenges and Solutions - The project faced several technical challenges, including automatic zeroing of set parameters, mismatches between human-machine interfaces and system software versions, and conflicts in communication port protocols [1] - The bureau organized technical teams to address these issues, conducting in-depth software logic checks and optimizing the zero-sequence voltage judgment module with remote support from manufacturers [1] Group 3: Upgrade Outcomes - As of September 2023, 157 smart switches have been successfully upgraded, resulting in a significant increase in fault isolation accuracy for the new generation of devices [1] - All upgraded devices passed a 72-hour live test, demonstrating enhanced stability of the 10 kV smart distribution network [1] - The upgrade project eliminated 37 equipment hazards, significantly reduced the average fault location time, and effectively improved power supply reliability metrics [1]

Core Viewpoint - The first 5G-based intelligent distributed feeder automation (FA) demonstration project in Shaanxi Province has successfully completed on-site testing, marking a significant advancement in the efficiency of fault handling in power distribution automation [1] Group 1: Project Overview - The demonstration project is located in the core area of Tongchuan City, specifically on the "Huayuan East Line - Huazheng Line" connection, utilizing 5G technology to enhance information security and power supply reliability [1] - The project has achieved a breakthrough from "second-level isolation" to "self-healing within seconds" in fault handling efficiency, supporting the high-quality development of the distribution network [1] Group 2: Technical Implementation - The project involves the construction of SPN devices connected to a mobile 5G transmission network at the dispatch end, creating a wireless, high-speed, and secure communication link [1] - The deployment of downlink UPF devices and AR routers at the network layer enables end-to-end data direct connection, establishing a high-speed local information channel between terminals [1] - Improvements have been made to the functional requirements, performance indicators, control logic, maintenance methods, and management specifications of 5G distribution terminals [1] Group 3: Performance Metrics - The company has successfully eliminated and isolated faults within 100 milliseconds and achieved load transfer within 1 second, significantly enhancing the speed of system fault handling [1] - The testing has accumulated valuable experience in the design, operational methods, practical maintenance, and management specifications of the 5G-based intelligent distributed FA system [1] - This lays a foundation for the systematic promotion of self-healing functions in the distribution network [1]

目前，该成果已在国网济宁供电公司配电设备"检试修"一体化基地稳定运行，设备调试效率同比提升80%。下一步，国网济宁供电公司 将继续以"争先向前"的精神状态、"领跑示范"的奋斗姿态，聚焦解决生产一线的难点堵点问题，深化跨区域技术协作，汇聚创新合力， 加速创新成果转化应用步伐，推动创新技术红利快速落地见效，助力公司在能源转型、数智赋能等领域走出具有宁电特色的创新实践之 路。 齐鲁晚报.齐鲁壹点郭纪轩通讯员孔维娜郑昊 《配电开关一二次成套数智联调装置》直击配电开关调试运维效率低、操作流程繁琐、安全风险高等行业痛点，创新应用一体化调试技 术、主站自适应自动联调技术和多开关同步联调技术，最终可同步实现6台开关或一台6间隔环网箱的全自动联调，一键自动完成全量540 项调试项目、一键生成调试报告。调试时长从2小时大幅缩短至20分钟，日均调试柱上断路器48台、环网箱6台，调试效率得到显著提 升。此外，一次侧加压、通流可实现全电气回路智能检测，精准定位零序CT接反等深层次缺陷，严把配电开关入网质量关，为电网安全 稳定运行提供了坚实保障。该装置确保了配电开关调试作业的安全性、质量可控性与智能化水平，是配电自动化领域实现"人工替代 ...