摘要
我国直流输电线路及换流站的数量及发展速度在世界上处于领先地位,但是作为直流电网电量监测及保护的重要设备,直流电流互感器却存在许多问题,故障率很高。为此介绍一种采用饱和电抗器原理研制的SF6气体绝缘500kV直流电流互感器,设计上保证了内部直流电场强度与暂态电场强度分布合理,经过近2a的挂网试运行,各项电气性能稳定、可靠。
There are a great deal of direct current transmission lines and in China. There exist many problems in DC current transformers, such as high fallure rate. This paper introduces a kind of SF6 gas insulated, 500 kV direct current transformer, which is based on the principle of transductor. In design of the transformer, the reasonable distribution of inner DC electric field intensity and transient electric field distribution are ensured. By nearly two years of tentative operation in HVDC transmission network, the electric property is steady and credible.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2009年第2期379-384,共6页
High Voltage Engineering
关键词
直流电流互感器
饱和电抗器
挂网试运行
绝缘
研制
监测
direct current transformer
transductor
tentative operation
insulation
development
monitoring
