避雷器热等价性及复合外套避雷器稳态热特性初探  

Study on Thermal Equivalency of Arrester and the Steady-State Thermal Behaviors of Polymeric Housing Arrester

作　　者：桑建平 

机构地区：[1]国家绝缘子避雷器质量监督检测中心,西安710077

出　　处：《电瓷避雷器》2013年第2期53-58,共6页Insulators and Surge Arresters

摘　　要：金属氧化物避雷器的热特性决定着避雷器长期带电运行的稳定性。通过对避雷器最新标准中关于热特性相关内容的解析,指出了避雷器的热特性实质包括了稳态热特性和瞬态热特性,验证比例单元与避雷器具有稳态热等价性是进行动作负载等试验的前提,给出了试验项目与评价热特性的关系,同时指出了现有标准中在试品选取方面的某些不妥。通过试验研究了复合外套避雷器的稳态热特性,给出了几点常见的热特性规律。the stability of the long-term charged operation depends on the thermal behavior of the metal oxide arresters. Through analysis of thermal behaviors relevant content in the latest arrester standards, it is pointed out that the essence of the arrester thermal behaviors including the steady state and transient thermal behaviors, verify thermal equivalency between complete arrester and arrester section is the precondition of the operating duty and etc, the relationship of test items and evaluation of the ther- mal characteristics is provided, and some inappropriate points in sample selection in the existing standards. Through the experimental the steady-state thermal behaviors of polymeric housing arrester is studied, and several common thermal behavior laws is given.

关 键 词：金属氧化物避雷器 热特性 稳定性 热等价性 复合外套避雷器 

分 类 号：TM862[电气工程—高电压与绝缘技术]