本体参数及间隙结构对EGLA放电电压影响的研究
发布时间：2018-07-18 15:09
【摘要】：为了保证外串空气间隙线路避雷器(EGLA)性能更好地满足线路绝缘配合要求,掌握间隙的放电电压参数是重中之重,研究间隙放电电压与各影响因素的关系就成为了一个关键的课题。在间隙未放电时间隙与本体的电压分配主要受电容影响,因此EGLA的放电电压与本体电容及间隙电容有着密切的关系。使用ANSYS仿真计算了35kV、110kVEGLA试品不同本体参数、不同间隙结构的电容量和电压分配,并实验研究了相应配置下EGLA的工频和冲击放电电压,对比仿真计算与实验结果,获得了EGLA的放电电压主要受本体参数及间隙等值电容影响,本体参数中等值电容影响更大的结论。
[Abstract]:In order to ensure that the performance of the line arrester (EGLA) with outer air gap can better meet the requirements of line insulation coordination, it is the most important to master the discharge voltage parameters of the gap. It has become a key issue to study the relationship between gap discharge voltage and various influencing factors. The discharge voltage of EGLA is closely related to bulk capacitance and gap capacitance. The capacitance and voltage distribution of 35kV 110kVEGLA sample with different bulk parameters and different gap structures were calculated by ANSYS simulation. The power frequency and impulse discharge voltage of EGLA were experimentally studied under the corresponding configuration. The simulation results were compared with the experimental results. It is concluded that the discharge voltage of EGLA is mainly affected by the bulk parameters and gap equivalent capacitors, and the equivalent capacitance of the bulk parameters has a greater effect on the discharge voltage.
【作者单位】： 西安交通大学电气工程学院;国网陕西省电力公司电力科学研究院;西安西电避雷器有限责任公司;
【分类号】：TM862
本文编号：2132291
[Abstract]:In order to ensure that the performance of the line arrester (EGLA) with outer air gap can better meet the requirements of line insulation coordination, it is the most important to master the discharge voltage parameters of the gap. It has become a key issue to study the relationship between gap discharge voltage and various influencing factors. The discharge voltage of EGLA is closely related to bulk capacitance and gap capacitance. The capacitance and voltage distribution of 35kV 110kVEGLA sample with different bulk parameters and different gap structures were calculated by ANSYS simulation. The power frequency and impulse discharge voltage of EGLA were experimentally studied under the corresponding configuration. The simulation results were compared with the experimental results. It is concluded that the discharge voltage of EGLA is mainly affected by the bulk parameters and gap equivalent capacitors, and the equivalent capacitance of the bulk parameters has a greater effect on the discharge voltage.
【作者单位】： 西安交通大学电气工程学院;国网陕西省电力公司电力科学研究院;西安西电避雷器有限责任公司;
【分类号】：TM862
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