摘要
文章采用查询曲线和工频耐受试验的方式,探讨330kV复合绝缘子接地侧加挂瓷绝缘子后其工频耐受电压的提高程度,并比较2种方法的一致性。通过湿试验验证绝缘子在雨天的工频耐受电压提高程度,进行海拔修正,探讨不同海拔高度的耐受电压提高程度,最后验证去掉上均压环对工频耐受电压的影响。
By means of querying curve and power frequency withstand voltage test, the increased amplitude of the power frequency withstand voltage of 330 kV composite insulator attached with porcelain insulator is discussed and the comparison between the methods is made in this paper. The increased amplitude in rain is validated by wet test. Based on the correction for altitude, the increased amplitudes of the power frequency withstand voltage at different altitudes are discussed. In end, the validation on the influence to the power frequency withstand voltage of composite insulator in the case of no upper equalizing ring is given.
出处
《青海电力》
2014年第F12期12-15,共4页
Qinghai Electric Power
关键词
复合绝缘子
工频耐受电压
海拔修正
差异化
composite insulator
power frequency withstand voltage
altitude correction
differentiation
