摘要
现行±800 kV特高压换流站避雷器预防性试验规程沿用了±500 kV常规直流避雷器的试验要求和基本方法,由于±800 kV特高压直流场避雷器采用了多柱并联的结构,而现行规程中对于这种并联结构避雷器预防性试验方法及结果判定并没有针对性的规定。本研究设计了3种试验方案,经过比较和模拟试验研究,最终选择整体试验方案作为多柱并联避雷器推荐预试方案,并提出基于整体试验方案的避雷器状态判定方法。采用此试验方法,在保证测试有效性的前提下,可减少预试工作量,并且在一定程度上减小了拆装过程对被试设备的损坏。
The preventive test code for ±800 kV UHV DC arrester is similar as ±500 kV DC arrester, they carry on with the same test requirements and basic methods. Due to the multi-column parallel structure in ±800 kV UHVDC arrester,there has shown neither focused test method nor result judgment for this special structure in previous procedures. Three different test programs are presented in this paper, by means of compare and simulation research, finally, the integrated test program is recommended. In addition, condition judgment method based on integrated test program is proposed. Subject to effectiveness, this test program reduces the disassembly and assembly process task in preventive test, and avoids the unnecessary damage in test equipment.
出处
《电瓷避雷器》
CAS
北大核心
2013年第6期112-118,共7页
Insulators and Surge Arresters
