复合外套无间隙金属氧化物避雷器热特性试验研究  

Study on the Thermal Characteristic of Polymeric Housed MOA without gap

作　　者：桑建平[1] 吴亮[1] 刘云蔚[1] 余龙龙[1] 

机构地区：[1]西安高压电器研究院有限责任公司,西安710077

出　　处：《电瓷避雷器》2015年第3期62-68,73,共8页Insulators and Surge Arresters

摘　　要：针对复合外套无间隙金属氧化物避雷器的热特性,通过研究其散热方式,给出了相应的散热模型;利用高精度的红外热成像仪与荧光测温光纤结合的方法,通过试验研究了不同工频电压、持续时间、试品离地高度、环境温度等对复合外套无间隙金属氧化物避雷器热特性的影响,并对试验结果进行了分析比对,指出了现行避雷器标准中热特性相关试验的缺陷和不足。Aiming to the thermal characteristic of polymeric housed metal oxide surge arrester （MOA） without gap and based on studying the thermal dissipating way of the arrester, this paper gives the corresponding thermal dissipating model. Combining the infrared thermal image of high accuracy with the fluorescence temperature measuring optical fiber, the influence of different power frequency voltages and durations, different heights above ground, different environmental temperatures on the thermal dissipating characteristics of the polymeric housed MOA without gap are investigated. The test results are compared and analyzed. And the shortcomings existed in the relative thermal performance of MOA specified by the current standards are pointed out.

关 键 词：复合外套无间隙金属氧化物避雷器 热特性 散热 热成像仪 荧光测温光纤 

分 类 号：TM862[电气工程—高电压与绝缘技术]