220kV断路器操作回路的优化配合研究  

Optimized Coordination of 220 kV Circuit Breaker's Operating Circuit and Its Protective Operation Box

作　　者：蒋苏静 蒋国顺 

机构地区：[1]佛山供电局,佛山528200

出　　处：《高压电器》2013年第11期88-93,共6页High Voltage Apparatus

摘　　要：断路器机构自带完善的控制回路,与断路器保护操作箱功能上存在重复、冲突,如果配合不好,会影响断路器以及电网安全稳定运行。笔者对机构操作回路和保护操作箱在防跳回路、跳合闸压力闭锁以及非全相保护回路的特点进行了分析总结,对改进两者在这些回路的配合方面进行了研究,提出在机构箱防跳回路中串联"就地/远方"切换把手ZK的接点;压力低禁止跳闸、禁止合闸、禁止操作等功能由断路器本体实现,压力低闭锁重合闸回路只选用第一路操作电源;以及采用断路器本体非全相保护,基于电气量的非全相保护作为补充之用,这些方案的使用将大大提高断路器的正常可靠运行,保证电力系统的安全稳定运行。A breaker mechanism has its own control in function. If the control circuit cannot coordinate circuit, which often conflicts with the protective operation box with the box, the safe and stable operation of power grid and circuit breakers will be affected. In this paper, the characteristics of anti-tripping circuit, low-pressure locking of tripping and closing, and non-whole-phase protection circuit are analyzed and summarized. Some methods for their coordination are proposed, such as connecting a contact of ＂Local/Remote＂ switch handle ZK in the ant-tripping circuit in mechanism box; the functions of low-pressure locking tripping, closing and operating being implemented by the breaker body; only first operating power being selected for low-pressure locking of reclosure circuit; and adopting non-whole-phase protection in the breaker body, while taking the electrical quantities based non-whole-phase protection as a supplement. These methods may enhance reliable operation of the circuit breaker to ensure the safe and stable operation of the power system.

关 键 词：断路器 操作箱 防跳回路 压力闭锁 非全相保护 

分 类 号：TM561[电气工程—电器]