电器与能效管理技术Issue(11)：51-58,8.DOI:10.16628/j.cnki.2095-8188.2025.11.007
考虑微机保护差流计算的10 kV母线保护误动的研究分析
Research and Analysis of 10 kV Busbar Protection Misoperation Considering Microcomputer Protection Differential Current Calculation
摘要
Abstract
The busbar is the core device of collecting and distributing electric energy in substation.When the busbar fault occurs,the failure to clear it promptly will damage numerous equipment and even undermine system stability in severe cases.Therefore,it is very necessary to set up a busbar protection with reliable operation and strong selectivity,which is also required to quickly detect the fault within the busbar range and selectively remove the fault in time without expanding the power failure range.A rare case of 10 kV busbar protection misoperating when the crossing fault occurs due to the wrong setting of the internal differential current calculation program of the microcomputer protection is analyzed.The relevant measures are put forward.A busbar protection verification method which can check the internal calculation program of the protection device is designed accordingly,which has achieved favorable results in practical applications.关键词
母线保护/差动保护/保护配置/误动/保护校验Key words
busbar protection/differential protection/protection configuration/maloperation/protection check分类
信息技术与安全科学引用本文复制引用
冯驰,刘洋,李博健,胡清华,赵睿齐,蒋子尧..考虑微机保护差流计算的10 kV母线保护误动的研究分析[J].电器与能效管理技术,2025,(11):51-58,8.基金项目
国家电网公司总部科技攻关项目(5204SJ1800UC) （5204SJ1800UC）
国网河北省电力有限公司职工技术创新项目(B204LC240032) （B204LC240032）
