Reduction in ac Partial Discharges by using Organic Insulating Material with Additive of Electron-Donating Type.

通过使用带有给电子型添加剂的有机绝缘材料来减少交流局部放电。

基本信息

批准号：
08650367
负责人：
YAMANO Yoshiaki
金额：
$ 1.41万
依托单位：
CHIBA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08650367/
关键词：
Partial Discharges Void Discharge Additive Insulating Film Electron-dwnating Material Azocompounds

项目摘要

The purpose of this study is to decrease PDs at a triple junction and in void by addition of azocompound to an organic insulating material (PMMA and PE). PD was produced on or in a test specimen subjected ot ac voltage. The additives mainly used were p-aminoazobenzene (Ab) , and p-nitorobenzeneazoresorcinol (Nb). The following are main results obtained in this study.1.Decrease in PD at a triple junction ; In the case of the film with Ab at 0.05% wt, the magnitude and number of PD pulses were reduced to about 50% less than those in the case of the film without the additive. The decrease in PD was effective under an electric field strength slightly higher than the PD initiation. The surface voltage distribution due to the charge by PD depended upon the type of additive. The decrease in PD for Ab film was explained form the dependence of surface voltage distribution on the additive. It was concluded that ionization of the additive in the film changes the distribution of surface voltage.2.Decrease in PD in void ; It was found that PD in void (diameter : 0.1mm) was decrease by addition of azocompound in PE.The both of additives, Ab and Nb were effective for the decrease in PD in void. In the case of Ab at 0.05-0.1% wt, the magnitude and number of PD pulses were reduced to about 90% less than those in the case of the film without the additive. The decrease in PD was effective under an electric field strength slightly higher than the PD initiation. The effect of the reduction in the PD resulted from the trapping of surface charge by the molecules of the azocompounds. The experiments indicated that the excitation of the additive at the inner surface of void was small contribution to the reduction in PD in void.

这项研究的目的是通过在有机绝缘材料（PMMA和PE）中添加Azocompound来减少三连接处的PDS和空隙。 PD是在测试样品上或受到OT AC电压的测试标本中产生的。主要使用的添加剂是p-氨基奈唑（AB）和P-Notorobenzeneazeneazoresorcinol（NB）。以下是本研究中获得的主要结果。1。在三连接处的PD中的份额；在胶片为0.05％wt的情况下，PD脉冲的幅度和数量比没有添加剂的胶片降低至约50％。在电场强度略高于PD启动下，PD的下降是有效的。由于PD电荷引起的表面电压分布取决于添加剂的类型。 AB膜的PD减少被解释了表面电压分布对添加剂的依赖性。得出的结论是，膜中添加剂的电离会改变表面电压的分布。发现通过在PE中添加AzoCompound的空隙（直径：0.1mm）的PD降低。两种添加剂，AB和NB对于void中的PD降低均有效。在0.05-0.1％wt的AB中，比在没有添加剂的情况下，PD脉冲的幅度和数量降低至90％。在电场强度略高于PD启动下，PD的下降是有效的。 PD降低的影响是由于azocompounds的分子捕获表面电荷而产生的。实验表明，空隙内表面的添加剂的激发对void中PD的减少的贡献很小。