|
|
|
| The strength analysis of earthing switches based on coupled field theory |
| Cheng Li, Dong Guihua, Zhang Xin |
| XD Switchgear Electric Co., Ltd, Xi’an 710077 |
|
|
|
|
Abstract The 3-D finite element model of earthing switches (ES) is developed based on the coupled field theory. The electromagnetic force and current distribution are calculated using Maxwell equations. Then the displacement and deformations of the parts of ES under electromagnetic force are calculated. And the structure of ES is optimized based on the calculation. The results indicate that the electromagnetic force of each part has three directions, the supports in each direction should be considered during the design.
|
|
Received: 19 July 2017
Published: 22 January 2018
|
|
|
|
| Cite this article: |
|
Cheng Li,Dong Guihua,Zhang Xin. The strength analysis of earthing switches based on coupled field theory[J]. Electrical Engineering, 2018, 19(1): 40-44.
|
|
|
|
| URL: |
|
http://dqjs.cesmedia.cn/EN/Y2018/V19/I1/40
|
[1] 周道军. 大型机组发电机断路器配置分析[J]. 电气技术, 2016, 17(2): 102-105.
[2] 陈湘令. 基于Ansoft的变压器突发短路有限元漏磁场分析[J]. 电气技术, 2015, 16(3): 61-62, 132.
[3] 宋福根, 林韩, 兰生. 特高压输电线路交叉跨越区域工频电场分布计算[J]. 电气技术, 2016, 17(1): 6-10.
[4] 陈强, 李庆民, 丛浩熹, 等. 引入多重边界条件的GIS母线温度分布多场耦合计算及影响因素分析[J]. 电工技术学报, 2016, 31(17): 187-195.
[5] 孙国霞, 关向雨, 金向朝, 等. 基于多场耦合计算的气体绝缘开关设备母线接头过热性故障分析[J]. 高电压技术, 2014, 40(11): 3445-3451.
[6] 吴明清, 田浩, 侯国良, 等. 多场耦合对直流环氧绝缘材料机械性能和热性能的影响[J]. 电网技术, 2015, 39(10): 2947-2951.
[7] 刘航宇, 刘念, 蒲丽娟, 等. 基于ANSYS的高压大截面电缆金具短路电动力和机械应力分析[J]. 电工技术学报, 2016, 31(5): 170-176.
[8] 苏安, 庚振新, 等. 1100kV气体绝缘金属封闭开关设备母线机械性能分析[J]. 电工电气, 2015(6): 51-57.
[9] 胡传振, 陈志英. 12kV开关柜三相母线短路电动力有限元分析[J]. 厦门理工学院学报, 2016, 24(3): 34-39.
[10] 舒乃秋, 关向雨, 康兵, 等. 基于场路耦合有限元的三相共箱气体绝缘母线暂态电动力分析[J]. 电网技术, 2015, 39(5): 1456-1462. |
|
|
|
2018, Vol. 19 
