摘要
基于目前的制造工艺,现有高压交流断路器的参数水平尚不能同时满足日益增长的电网短路电流水平引起的保护要求及技术经济合理性。为此提出了一种新型结构大容量高压断路器的设计方案,该断路器利用耦合度高、正常工作状态下能耗小的紧耦合空心电抗器,结合断路器使用,能有效实现自动均流和限流功能,从而成倍增大断路器承受额定电流和短路电流的能力。对其工作原理进行了理论分析及仿真计算,并通过动模试验验证了其可行性。此外,参考GIS的设计,提出了采用金属外壳封闭气体绝缘的大容量开关装置的工程化实施方案。
We presented a new design of large-capacity high-voltage breakers.In this design,a tightly-coupled reactor which had a small consumption in normal working state was adopted to connect with two paralleled breakers.This combination could effectively achieve the function of automatically current-sharing and current-limiting.Thus the level of both the rated current and short-circuit current of generator circuit breakers could be doubled.The working principle of the design was theoretically analyzed and simulated.Its feasibility was also verified through dynamic tests.Furthermore,an engineering implementation of this design was proposed referring to GIS（gas insulation switch） where the metal enclosure and gas insulation were applied.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2010年第6期1577-1582,共6页
High Voltage Engineering
基金
国家"十一五"科技支撑计划(2009BAA19B00)~~
关键词
紧耦合电抗器
大容量断路器
并联断路器
自动均流
限流电抗器
气体绝缘
tightly-coupled reactor
large-capacity breakers
paralleled breakers
auto-current-sharing
current-limiting reactor
gas insulation
