首页> 外文会议>International Conference on Power System Technology >Corona Discharge Characteristics for Fittings of AC Transmission Line Under Rainy Conditions
【24h】

Corona Discharge Characteristics for Fittings of AC Transmission Line Under Rainy Conditions

机译:多雨条件下交流输电线路配件的电晕放电特性

获取原文

摘要

The corona discharge characteristic of the fittings is one of the key factors affecting the electromagnetic environment of the UHV transmission project. In the rain environment, the corona discharge characteristics of fittings are obvious. To study the influence of water drops on corona characteristics of fittings, the visible corona test, RIV test and audible noise measurement were carried out in Ultra-high Voltage Test Base in Wuhan under both dry and rainy conditions with the self-constructed water spray apparatus. The visible corona discharge characteristics were measured by an electromagnetic interference test receiver, a sound meter and a ultraviolet image apparatus. The test results show that compared with the dry condition test, the inception corona voltage of fittings is significantly reduced under rainy condition, and at most, the inception corona voltage is reduced to 36.6 % under dry condition. At the same voltage, compared with the dry condition test, the electromagnetic environment of fittings deteriorated seriously under the rainy condition, and the audible noise and radio interference level increased significantly. Under dry condition, the audible noise and radio interference levels suddenly increase significantly at the inception corona voltage; Under rainy condition, the level of audible noise and radio interference increases gradually with increasing voltage, and the growth rate does not appear obvious jump phenomenon.
机译:配件的电晕放电特性是影响特高压输电项目电磁环境的关键因素之一。在雨天环境中,配件的电晕放电特性很明显。为了研究水滴对配件电晕特性的影响,在武汉的超高压试验基地中,在干燥和多雨的条件下,使用自建喷水装置进行了可见电晕试验,RIV试验和可听噪声测量。 。可见电晕放电特性通过电磁干扰测试接收器,声音计和紫外线成像设备测量。测试结果表明,与干燥条件下的测试相比,配件在雨天条件下的初始电晕电压降低了很多,至多在干燥条件下的初始电晕电压降低到了36.6%。在相同电压下,与干燥条件下的测试相比,配件在雨天条件下的电磁环境严重恶化,可听噪声和无线电干扰水平显着提高。在干燥条件下,在初始电晕电压下,可听噪声和无线电干扰电平突然显着增加;在多雨的条件下,可听噪声和无线电干扰的水平随着电压的升高而逐渐增加,并且增长率没有出现明显的跳跃现象。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号