特高压电气设备法兰连接处的弯曲刚度试验研究

doi:10.11930/j.issn.1004-9649.2014.6.6.0

中国电力 ›› 2014, Vol. 47 ›› Issue (6): 6-6.DOI: 10.11930/j.issn.1004-9649.2014.6.6.0

特高压电气设备法兰连接处的弯曲刚度试验研究

朱祝兵, 代泽兵, 卢智成, 张雪松, 高坡

中国电力科学研究院,北京 100192

修回日期:2014-03-28 出版日期:2014-06-18 发布日期:2015-12-08
作者简介:朱祝兵（1982—）,男,山东临沂人,硕士,工程师,从事电网基础设施防灾减灾及力学性能评估研究。E-mail: zzbyx2008@163.com

Experimental Study of the Bending Rigidity at Flange Connection of UHV Electrical Equipment

ZHU Zhu-bing, DAI Ze-bing, LU Zhi-cheng, ZHANG Xue-song, GAO Po

China Electric Power Research Institute, Beijing 100192, China

Revised:2014-03-28 Online:2014-06-18 Published:2015-12-08
About author:This work is supported by Science and Technology Key Project of State Grid Corporation of China (GCB17201200084)
Supported by:
国家电网公司重点科技资助项目（高压电气设备抗震试验关键技术研究）（GCB17201200084）

摘要/Abstract

摘要： 为研究特高压电气设备元件与法兰胶装连接处的弯曲刚度分布规律,采用自主设计的加载装置,针对具有代表性的9个瓷套元件进行弯曲刚度试验。运用极差法对试验数据进行分析,得到了各瓷套元件与法兰连接胶装部位的弯曲刚度,并进一步得到各元件法兰连接部位的弯曲刚度系数,分析了弯曲刚度系数与设备外径、胶装参数影响因子之间的关系。结果表明,设备外径小于300 mm时,由实测数据计算得到的弯曲刚度系数与现行规范中的6.54×10⁷相接近,随着电气设备外径的增大,法兰连接部位的弯曲刚度系数呈降低趋势。由于特高压电气设备截面外径一般在300 mm以上,规范中规定的法兰弯曲刚度计算公式已经不适用于特高压电气设备。通过对试验数据进行拟合分析,给出了适用特高压电气设备的法兰弯曲刚度系数计算公式,最后通过3个典型特高压电气设备的仿真和试验结果的对比,验证了所提出的公式的正确性。

关键词: 特高压, 电气设备, 法兰连接, 弯曲刚度

Abstract: For study the bending rigidity distribution law of the junction between UHV electrical equipment elements and flange, nine typically porcelain bushing elements were selected to do the bending rigidity experimental. Terrible method was used to analyze the experimental data, and then the bending rigidity between porcelain bushing elements and flange were obtained. On this basis, bending rigidity coefficients were calculated, the relationship between bending rigidity coefficients and equipment diameter as well as glue parameters influence factor was analyzed. The results show that when the equipment diameters were less than 300 mm, the bending rigidity coefficients calculated from the measured data were closed to the current code stipulated value of 6.54×10⁷, and the bending rigidity coefficients were decreasing with the increases of equipment diameter. Because the UHV electrical equipment diameters are generally more than 300 mm, so bending rigidity formula stipulated in the current code does not apply to the UHV equipments. New bending rigidity formula applied to the UHV equipments was proposed by fitting analysis of the experimental data. Finally the new bending rigidity formula was proved to be correct by the comparison of simulation and experimental results of three typically UHV electrical equipments.

Key words: UHV, electrical equipment, flange joint, bending rigidity

中图分类号:

TM723

朱祝兵, 代泽兵, 卢智成, 张雪松, 高坡. 特高压电气设备法兰连接处的弯曲刚度试验研究[J]. 中国电力, 2014, 47(6): 6-6.

ZHU Zhu-bing, DAI Ze-bing, LU Zhi-cheng, ZHANG Xue-song, GAO Po. Experimental Study of the Bending Rigidity at Flange Connection of UHV Electrical Equipment[J]. Electric Power, 2014, 47(6): 6-6.

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特高压电气设备法兰连接处的弯曲刚度试验研究

Experimental Study of the Bending Rigidity at Flange Connection of UHV Electrical Equipment

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特高压电气设备法兰连接处的弯曲刚度试验研究

Experimental Study of the Bending Rigidity at Flange Connection of UHV Electrical Equipment

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