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| 35 kV电流互感器电场分析 | |
| 引用本文： | 孙红艳,曹云东,陈毅. 35 kV电流互感器电场分析[J]. 沈阳工业大学学报, 2006, 28(1): 37-40 |
| 作者姓名： | 孙红艳 曹云东 陈毅 |
| 作者单位： | 1. 沈阳工业大学,电气工程学院,沈阳,110023;沈阳电机股份有限公司,沈阳,110026 2. 沈阳工业大学,电气工程学院,沈阳,110023 3. 沈阳东软数字医疗系统股份有限公司,沈阳,110179 |
| 基金项目： | 辽宁省科技厅博士科研启动基金资助项目(20041026) |
| 摘 要： | 采用路、场两种方法对35?kV电流互感器电场分布进行定性和定量的研究，分析其法兰附近发生电晕放电的原因.由于35?kV电流互感器一次线圈呈U型结构，导致其电场呈三维空间分布，而且计算区域中具有多层介质和复杂的结构.为更真实反映全场域电场分布，在外绝缘等值电路分析基础上，采用有限元法，应用ANSYS商用软件包对35?kV电流互感器进行三维电场数值计算和绝缘的分析研究.通过对35?kV电流互感器内外电场分布的分析及改进方案的产品研究、试验，证明电场研究的正确性和改进方案的可行性. |
| 关 键 词： | 电流互感器 电晕放电 电场 ANSYS软件 绝缘 |
| 文章编号： | 1000-1646(2006)01-0037-04 |
| 收稿时间： | 2005-05-23 |
| 修稿时间： | 2005-05-23 |
Electric field analysis of 35 kV current transformer |
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| SUN Hong-yan,CAO Yun-dong,CHEN Yi. Electric field analysis of 35 kV current transformer[J]. Journal of Shenyang University of Technology, 2006, 28(1): 37-40 | |
| Authors: | SUN Hong-yan CAO Yun-dong CHEN Yi |
| Affiliation: | 1. School of Electrical Engineering, Shenyang University of Technology, Shenyang 110023, China; 2. Shenyang Electric Machinery Co. Ltd, Shenyang 110026, China; 3. Shenyang Neusoft Digital Medical System Co. Ltd, Shenyang 110179, China |
| Abstract: | The qualitative and quantitative investigation on a 35 kV current transformer(CT) using(circuitry) and numerical field methods has been performed for analyzing the cause of the corona discharging nearby the flange.Because of the U type complex structure of the 35 kV CT,the whole electric field(belongs) to 3D case,and there exists multi-dielectric media.For more truly reflecting the distribution of whole field domain,based on the circuitry analysis and using finite element method,the 3D electric field of the 35 kV CT has been computed using the ANSYS commercial software,and the insulation analysis has been realized.Moreover,the calculation results have been illustrated.Furthermore,the theoretical basis of the(relative) insulation design has been provided based on the investigation of the internal and external electric field of the 35 kV CT. |
| Keywords: | current transformer corona discharge electric field ANSYS insulation |
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