QQ客服 官方微博 反馈留言

	Identification of transformer magnetizing inrush based on equivalent instantaneous inductance in nonsaturation zone
	Bi Da-qiang ; Wang Xiang-heng ; Wang Jian ; Yu Gao-wang ; Wang Wei-jian
	2010-05-10 ; 2010-05-10
关键词	Practical Experimental/ current transformers inductance power transformer protection short-circuit currents/ equivalent instantaneous inductance nonsaturation zone transformer magnetizing inrush saturation zones short-circuit fault differential protection turn-to-turn short-circuit current transformer/ B8350 Transformers and reactors
中文摘要	The equivalent instantaneous inductance of transformer can reflect the change of its saturation level. The variation range and characteristic of equivalent instantaneous inductance between nonsaturation and saturation zones is analyzed, which are divided according to the differential current during the magnetizing inrush and short-circuit fault in transformer. A method is proposed to distinguish magnetizing inrush from short-circuit fault based on the average of equivalent instantaneous inductance in the nonsaturation zone. Its principle is clear,and its setting is simple and easy. The experimental results verify that the method can correctly open the differential protection in short time during internal short-circuit fault and energizing with turn-to-turn short-circuit and reliably block the protection during the magnetizing inrush. It is well immune to the saturation of current transformer and applicable in practice.
语种	中文 ; 中文
出版者	Editorial Office of Electrical Power Automation Equipment ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/22007]
专题	清华大学
推荐引用方式 GB/T 7714	Bi Da-qiang,Wang Xiang-heng,Wang Jian,et al. Identification of transformer magnetizing inrush based on equivalent instantaneous inductance in nonsaturation zone[J],2010, 2010.
APA	Bi Da-qiang,Wang Xiang-heng,Wang Jian,Yu Gao-wang,&Wang Wei-jian.(2010).Identification of transformer magnetizing inrush based on equivalent instantaneous inductance in nonsaturation zone..
MLA	Bi Da-qiang,et al."Identification of transformer magnetizing inrush based on equivalent instantaneous inductance in nonsaturation zone".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。