摘要
为了使高压断路器满足超大规模电网进一步发展的要求,研究了一种新一代高压大容量真空断路器。该断路器通过对40.5 kV断路器模块的串并联使得其额定工作电压、电流分别提升至126 kV和5 000A,短路开断电流达到80 kA。并通过紧耦合分裂电抗器自动均流/限流技术和动态均压技术提高了设备的可靠性。完成了该断路器的整机安装和挂网试运行的工作,并对运行中的断路器进行了相关的数据测量,包括电流、温度和漏磁。由该断路器正常稳定运行以及变电站挂网运行的数据验证了该断路器的设计方案的有效性,该工作为今后真空断路器的发展方向提供了很好的思路。
In order to meet the requirement of further development of large scale grid, a new kind of high voltage and large capacity vacuum circuit breaker is presented. This new equipment adopts series-parallel technology of 40.5 kV circuit breaker module to make its rated working voltage and current upgrade to 126 kV and 5 000 A respectively, and short-circuit breaking current reach up to 80 kA. Through the tightly coupled split reactor＇s automatic current sharing/current limiting technology and dynamic uniform voltage technology, the reliability of equipment is improved. The installation and trial operation of the circuit breaker machine are completed, the data measurement of the running equipment is accomplished, including current, temperature, and magnetic flux leakage value. Relevant test data and the stable operation of the circuit breaker during the trial operation verify the validity of the circuit breaker. The whole work provides a good idea for the future development of vacuum circuit breaker.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2015年第16期126-132,共7页
Power System Protection and Control
基金
国家科技支撑计划项目(2009BAA19B02)
国网公司重大科技项目(SG0846)
关键词
真空断路器
串并联技术
高耦合电抗器
挂网试运行
vacuum circuit breaker
series-parallel technology
high coupling reactor
trial operation
