Remote Online Monitoring System for Suspension Insulator Strings

Bo Li, Xiujie Wang, L. Nian
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引用次数: 13

Abstract

Suspension insulator strings are used in high voltage transmission lines and substations widely and they are important for the power system on insulation. This paper describes some insulation ability of suspension insulator strings and completes some exploration work to the remote online monitoring system for suspension insulator strings of high voltage transmission lines and substations. A new method of combinative leakage current and pulse current for insulators is introduced. This monitoring system can monitor the leakage current and pulse current of suspension insulator strings effectively, and it can make use of computer and communication technology to process the real-time signal which is able to reflect the insulation state with the relevant data of insulators. The leakage current of suspension insulator strings can incarnate the grade of insulators contamination. Accordingly, the pulse current of them can embody the characteristic of internal insulation. Base on these methods, the system has the real-time early warning function, and the pre-warning work can be realized for the pollution flashover. The experimental equipment is also installed in the high voltage laboratory and the software of this system is programming. We test the system and improve it continuously to achieve that this system can be used in field early. This can help the operators obtaining the data of insulators indoors, cleaning and maintaining the insulators designedly, and reducing the maintenance expenses of effectively
悬架绝缘子串远程在线监测系统
悬吊式绝缘子串广泛应用于高压输电线路和变电站中,是电力系统绝缘的重要组成部分。介绍了悬挂式绝缘子串的一些绝缘性能,并对高压输电线路和变电站悬挂式绝缘子串远程在线监测系统做了一些探索工作。介绍了一种新的绝缘子漏电流和脉冲电流组合计算方法。该监测系统能够有效地监测悬浮绝缘子串的漏电流和脉冲电流,并利用计算机和通信技术对实时信号进行处理,结合绝缘子的相关数据反映绝缘子的绝缘状态。悬浮绝缘子串的泄漏电流可以反映绝缘子的污染程度。因此,它们的脉冲电流可以体现内部绝缘的特性。基于这些方法,系统具有实时预警功能,可以实现对污染闪络的预警工作。高压实验室还安装了实验设备,并对系统软件进行了编程。我们对系统进行了测试,并对其进行了不断的改进,使该系统能够早日在现场应用。这样可以帮助操作人员获取室内绝缘子的数据,有针对性地对绝缘子进行清洗和维护,有效地降低绝缘子的维护费用
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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