摘要
在大量的试验中发现,真空灭弧室在失去开断短路电流能力时触头表面会发生很大的变形和烧损.本文主要对分闸过程中触头表面受电弧作用下的热变形进行试验和理论推导,同进对影响触头热变形的因素进们分析.
In testing ,the deformation and damage on the surface of contacts are very serious when a vacuum interrupter loses the ability of breaking short cir-cuit current. This paper mainly analyses the thermal deformation caused by vacuum arc through the experiment and the theory. In the meantime, the factors affecting the thermal deformation of contacts are discussed.
出处
《高压电器》
CAS
CSCD
北大核心
1994年第3期3-6,共4页
High Voltage Apparatus
基金
国家自然科学基金
关键词
真空灭弧室
触头系统
电弧
热变形
vacuum interrupter,contact system,arc ,thermal deformation,damage,breaking ability
