High-voltage circuit breaker and reclosing locking logic function device thereof

• Main Authors: CHENG LONGJUN, ZHANG MENGCHAO, LYU HAOBO, LI DONGCAI, SUN HUAZHI, LIU SHASHA, YANG HAOJIE, LI HUNAO, PENG CHAODE, YAN YAGANG, HE DONGLIANG, JIA CAILING, LIU CHONGYUE, SUN YUANYUAN, DONG JUNLI, WANG DAWEI
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; RELAYS; SELECTORS

The invention relates to the field of high-voltage switch equipment in an electric power system, and discloses a high-voltage circuit breaker and a reclosing locking logic function device thereof. When the switch equipment carries out a closing action, timing and counting are carried out, and if a preset operation frequency is reached within a set time, reclosing locking needs to be carried out; when the internal temperature of the resistor is reduced, the resistor is restarted, so that the problem that the closing resistor disc is overheated due to frequent closing operation of the circuit breaker is solved, and the circuit breaker is protected; meanwhile, compared with an existing reclosing locking logic function loop, redundancy of components is reduced, and the reclosing reliability of the circuit breaker is improved. 本发明涉及电力系统中的高压开关设备领域，公开了一种高压断路器及其重合闸闭锁逻辑功能装置，本发明当开关设备进行合闸动作时，进行计时和计数，若在设定时间内达到预设的设定操作次数，则需要进行重合闸闭锁，使得主合闸回路断开，无法进行合闸动作，等到电阻内部温度降低后再重启，解决断路器频繁合闸操作引起合闸电阻片过热问题，保护了断路器；同时与现有的重合闸闭锁逻辑功能回路相比，减少元器件冗余，