220kV变电站110kV母差保护改造施工方案

Construction Plan for 110kV Bus Differential Protection Reconstruction of 220kV Substation

母差保护是电力系统继电保护的重要组成部分,母线故障是电力系统中非常严重的故障,它直接影响母线上所连接的所有设备的安全可靠运行,因此随着电力技术的快速发展,对母差保护的快速性、灵敏性、可靠性、选择性的要求也越来越高。文章以110kV母差保护改造工程为例,介绍了110kV母差保护更换的施工方案,阐述了施工过程中应考虑的安全措施和注意事项。

Bus bar protection is an important part of power system relay protection, so bus fault is a very serious fault in the power system. Bus fault affects safe and reliable operation of all devices connected to the bus directly. With the rapid development of electric power technology, the requirement of the rapidi- ty, sensitivity, reliability and selectivity of the bus bar protection is also increasing. Setting llOkV bus differential protection project as an example, the paper introduces the construction of 110kV bus differen- tial protection scheme, and elaborates safety measures and precautions that should be considered in the construction process.