摘要
针对特高压系统变压器的特点及对保护带来的问题,通过合理配置差动保护,以及对变压器运行方式的智能识别,细分保护动作特性区间,提出利用短数据窗高比例制动特性来保证在特征明显的区内故障时差动保护的快速动作。该方案已应用于WBH-800变压器保护装置并通过实验验证。
To ultra high votage system transformer＇s characteristics and its requirement to protection, this paper configures differential protection reasonably, recognizes transformer＇s mode intelligently, and derides protection characteristics area delicately. Based on the above, a method using short data windows and high ratio restraint to ensure the differential proteeton speed while obviously fault in inter area happened is presented. This scheme has adopted in WBH-800 transformer device and passed the examination.
出处
《继电器》
CSCD
北大核心
2005年第19期14-18,共5页
Relay
关键词
差动
励磁涌流
短数据窗
高比例
differential
inrush current
short data windows
high ratio
