摘要
针对电力工程中保护装置、断路器及操作箱型号多样、设计不统一,导致现场调试中断路器本体机构箱的防跳回路与保护装置操作箱的防跳回路无法配合、无法重合闸的问题,一般采用解除操作箱防跳回路的方法。对常见的操作箱和断路器本体防跳回路并联防跳和串联防跳"二选一"的设计原则讨论后,提出在同时保留操作箱和断路器本体防跳回路的情况下,采用合闸监视回路中串入断路器的常闭辅助触点的方法,确保防跳断路器不会经过合闸监视回路自保持,不会出现无法再次合闸或跳、合闸监视灯同时亮的现象。该方法已在实际中应用并证明防跳功能是正确、可靠的。
As the designs for various types of protective device,breaker and operating box are not standardized in power projects,the anti-bouncing circuit of circuit breaker operating mechanism and the anti-bouncing circuit of protective device operating box could not cooperate properly at the same time with the breaker in reclosing operation during site commissioning, which is generally solved by disabling the anti-bouncing circuit of operating box. The ＂one from two＂ principle is discussed and it is suggested to insert the normal-close contact of circuit breaker in the closing monitoring circuit while both the anti-bouncing circuits are kept,which ensures the proper cooperation. Practical application proves its reliability and correctness.
出处
《电力自动化设备》
EI
CSCD
北大核心
2010年第10期106-109,共4页
Electric Power Automation Equipment
关键词
断路器
防跳回路
操作箱
重合闸
合闸监视
breaker
anti-bouncing circuit
operating box
reclosing
closing monitoring
