摘要
输电线路的绝缘子要求在大气过电压、内部过电压和长期运行电压下均能可靠运行,但沉积在绝缘子表面的固体、液体和气体微粒与雾、毛毛雨、融冰、融雪等恶劣气象条件的同时作用,使绝缘子的电气强度大大降低,从而使输电线路和变电站的绝缘子不仅可能在过电压作用下发生闪络,更频繁的是在长期运行电压下发生污秽闪络,造成停电事故。因此,通过对输电线路工程防污技术的研究,提出合理的防污措施具有十分重要的意义。
Transmission line insulator in atmospheric over-vohage, internal demand overvoltage and long-term operation voltage are reliable, but due to the effect of bad weather conditions such as deposition in the insulator surface of the solid, liquid and gas particles and fog, drizzle, melting ice melting snow etc, the electrical insulator strength greatly reduced, so that the transmission lines and the transformer substation insulator may not only in overvohage un- der the action of flash winding happened, more frequent in the long running voltage is happened under flash winding unclean, power cuts caused by accident. Therefore, continuously for transmission lines antifonling technology research project and put forward reasonable antifonling measures has the very vital significance.
出处
《电线电缆》
2012年第2期38-40,共3页
Wire & Cable
关键词
绝缘子
污秽闪络
输电线路
防污
insulator
pollution flashover
transmission line
antifouling
