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2. 发明专利

JP2005322603A Protective circuit for power system 有权
标题翻译：电力系统保护电路
公开(公告)号：JP2005322603A
公开(公告)日：2005-11-17
申请号：JP2004141538
申请日：2004-05-11
申请人： Energy Support Corp , Hokuriku Electric Power Co Inc:The , Hokuriku Energys Kk , エナジーサポート株式会社 , 北陸エナジス株式会社 , 北陸電力株式会社
发明人： NAKADA KAZUO , TANAHASHI YASUHIRO , KOZUKA YUSEI
IPC分类号： H01H85/042
摘要： PROBLEM TO BE SOLVED: To provide a protective circuit for a power system with equipment cost saved as much as possible, and with trouble areas localized through restraint of the repercussion of short-circuit failure and grounding failures of equipment which are connected in branched manner to a power system.
SOLUTION: A serial circuit of a cutout 13 with a tripolar interlocking release function with an expulsion fuse 13a incorporated in free detachment, and a cylindrical cutout 14 with a current-limiting fuse 14a having an interruption function incorporated in free detachment is arranged the power source side of a reactor 12 branch connected to a distribution wire 11. Further, the rated current of the expulsion fuse 13a is set smaller than that of the current-limiting fuse 14a. By the protection coordination of the current-limiting fuse 14a and the expulsion fuse 13a, a given interruption capacity can be secured, to enable protection of the power system from the short-circuiting failures with respect to the reactor 12.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电力系统的保护电路，尽可能节省设备成本，并通过限制连接在设备中的短路故障和接地故障的限制来区分故障区域分支到电力系统。解决方案：具有结合在自由分离中的具有三极互锁释放功能的切口13的串联电路和具有以自由分离结合的具有中断功能的限流熔断器14a的圆柱形切口14布置成反应器12的电源侧分支连接到配电线11.此外，排出保险丝13a的额定电流被设定为小于限流熔断器14a的额定电流。通过限流熔断器14a和排出熔断器13a的保护协调，可以确保给定的中断能力，以使电力系统免受相对于电抗器12的短路故障的保护。版权所有：（C）2006，JPO＆NCIPI

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