110kV输电线路复合材料杆塔特性试验研究

Experimental Research on Performance of Composite Materials Pole of 110kV Transmission Line

为了研究110 kV复合材料杆塔特性,对2种不同接地方式下的110 kV单杆双回复合材料杆塔进行了相地操作冲击、雷电冲击、工频污闪等电气特性的试验研究,并对3种结构形式的110 kV复合材料杆塔进行了6种典型工况下的结构荷载试验。根据复合材料杆塔试验结果得出:110 kV复合材料杆塔在合适的接地方式下,杆塔的绝缘水平有大幅的提高;复合材料杆塔的强度满足线路荷载要求,但其挠度要大于铁塔。从运行性能的分析得出,采用复合材料绝缘杆塔可减少运行中风偏、污闪、冰闪、雷击跳闸等故障。

The electrical performances of 2 types of grounding of 110kV composite materials pole, and the mechanical performance of 3 forms of structure of 110kV composite materials pole, were experimentally investigated, and the operation performance was analyzed. The test results reveal that, compared with that of the steel pole, the insulating level of composite materials pole is remarkably improved after adopting proper grounding method, and the strength of composite materials pole satisfies the demands of load of transmission line, but the deflection of composite materials pole is more than that of steel pole. Consequently, insulation of the composite materials poles can greatly improve the insulation level and reduce the fault of transmission lines, such as windage yaw, pollution flashover, icing flashover,and lightning trip.