电晕噪声作为诊断工具

Proceedings of 1994 4th International Conference on Properties and Applications of Dielectric Materials (ICPADM) Pub Date : 1994-07-03 DOI:10.1109/ICPADM.1994.414096

C. R. Evert, P. de Klerk

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引用次数: 3

摘要

南非的主要电力公司Eskom通过早期检测，在适当的高频背景噪声识别的帮助下，解决了275千伏和400千伏输电网络中火灾引起的故障问题，特别是甘蔗火灾。这些线路下的火灾导致导体电晕水平增加，这除其他外，会产生在载波系统通信信道中可检测到的背景无线电噪声水平增加。简要概述了以前所做的工作，然后介绍了Eskom在原型火灾探测装置和监测变电站和输电网络中的其他缺陷方面的最新研究和开发。

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Corona noise as a diagnostic tool

The major electricity utility in South Africa, Eskom has addressed the problem of fire induced faults and in particular, sugar cane fires, in the 275 kV and 400 kV transmission network by means of early detection with the aid of appropriate HF background noise identification. Fires under these lines cause increased levels of conductor corona which generate, inter alia, increased levels of background radio noise detectable in the carrier system communication channels. A brief overview of previous work done is presented followed by Eskom's latest research and developments related to both a prototype fire detection device and monitoring other deficiencies in the substation and transmission network.<>

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Proceedings of 1994 4th International Conference on Properties and Applications of Dielectric Materials (ICPADM)

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