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330 kV GIS外壳异常发热机理与改进措施研究
Research on Enclosure Overheat Mechanism and Improvement Measures of 330 kV GIS
- 高压电器 2025年 页码：1-8
- 作者机构：
1.国网青海省电力公司电力科学研究院，西宁 810008
2.国网青海省电力公司，西宁 810008
- 作者简介：
王生杰（1985—），男，高级工程师，主要从事电气试验及带电检测工作（E-mail：601989834@qq.com）。
马永福（1994—），男，工程师，主要从事变电设备诊断试验及技术创新工作（E-mail：1069671957@qq.com）。
- 基金信息：
DOI：
中图分类号：-
纸质出版日期：
- 稿件说明：
移动端阅览
王生杰, 马永福, 马国祥, 等. 330 kV GIS外壳异常发热机理与改进措施研究[J/OL]. 高压电器, 2025,1-8.
WANG Shengjie, MA Yongfu, MA Guoxiang, et al. Research on Enclosure Overheat Mechanism and Improvement Measures of 330 kV GIS[J/OL]. High voltage apparatus, 2025, 1-8.
摘要
气体绝缘金属封闭开关（GIS）经长期投入使用后发热缺陷突出，其中设备外壳波纹管及其附件处异常发热较为常见。文中针对变电站330 kV GIS主变分支母线外壳异常发热情况，结合精确红外测温发现发热点主要集中在波纹管本体、波纹管导流排、导流排压接螺栓、波纹管位移标尺和法兰间长拉杆等位置，采用波纹管通流检测、解体检查和外壳入地电流检测，分析发热故障产生原因并提出相应的处理措施。研究结果对于GIS外壳发热缺陷的分析、处理和预防具有一定的工程参考价值与借鉴意义。
Abstract
Gas insulated switchgear (GIS) has prominent heat defects after long-term use
with overheat at the enclosure bellows and its accessories of the equipment being more common. In this paper
according to the main transformer branch bus enclosure overheat of 330 kV GIS in converter substation
combined with accurate infrared temperature measurement
it is found that the hot spots are mainly concentrated in the bellows body
bellows binding bar
crimping bolt of binding bar
bellows displacement scale and long tie rod between flanges. The causes of the heat defect are analyzed and the corresponding measures are put forward by using the bellows flow-through detection
disassembly inspection and the enclosure grounding current detection. The research results have certain reference value for the analysis
treatment and prevention of GIS enclosure heat defects.
关键词
Keywords
references
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