500kV嘉应站220kV母差失灵保护改造二次回路调试探讨

Discussion on the debugging of 220 kV busbar failure protection secondary circuit in 500 kV Jiaying Station

介绍了在500 kV嘉应站进行220 kV母线双母双分段改造工程的概况,阐述了在改造过程中遇到的二次回路问题及其解决方案,工程中在保证旧母差保护正常运行的基础上,安全地接入了新母差失灵保护装置。同时进行部分回路优化改造。

This paper introduced the details on the innovation project of double busbar with bus couple and double bus section in 500 kV Jiaying station, expounded the secondary circuit problems and solutions in the process of transformation. Based on the ensuring nor- mal operation of the old busbar protection, securely accessed the new bus failure protection device, optimized and transformed part of the circuit at the same time.