母线保护与变压器保护的接口问题.pdfVIP

第 36 卷 第 13 期 电力系统保护与控制 Vol.36 No.13 2008 年 7 月 1 日 Power System Protection and Control July 1, 2008 母线保护与变压器保护的接口问题 1 2 2 2 余荣云 ，彭世宽 ，陈 凌 ，屠黎明 （1.江苏省电力公司，江苏 南京 210024; 2.北京四方继保自动化股份有限公司，北京 100085） 摘要：根据国家电网公司《十八项反措》要求，220kV 及以上电压等级变压器断路器失灵时，除应跳开失灵断路器相邻的全 部断路器外，还应跳开变压器连接其他侧电源的断路器。但未制定详细具体的实施方案，自该文献颁布后，各网、省公司和 电力设计院对该问题的理解存在较大差异，出现了多种母线保护与变压器保护的接口方案，给继电保护设计和管理、运行、 维护单位带来诸多不便。提出了母线故障不同断路器失灵时的处理方法，并结合工程的实际情况，对变压器高压侧断路器失 灵时连跳其他电源侧断路器的实现方案进行了对比分析，并提出了最优的实现方案。 关键词: 母线保护; 变压器保护; 接口问题 Interface problem between bus-bar protection and transformer protection 1 2 2 2 YU Rong-yun ，PENG Shi-kuan ，CHEN Ling ，TU Li-ming （1. Jiangsu Electric Power Company，Nanjing 210024 ，China; 2. Beijing Sifang Automation Co.,LTD，Beijing 100085,China ） Abstract: According to the eighteen anti-accident measurement requirement by State Grid Corporation of China ，when 220 kV and above voltage transformer circuit breaker failure, not only all adjacent breakers but also the breakers of the other power sides of the transformer should be tripped. But no detail and specific implementation has been developed. Since the promulgation of the document, there has been various understanding of the issue between different net or province electric power corporations and design institutes. There have been different interfaces between bus-bar protection and transformer protection, which cause much inconvenience for protection design, management, operation, and maintenance. This paper presents the different handling ways when bus fault and circuit breaker failure. In conjunction with the actual situation o