Online Detection Technology of Solid Insulation RMU Based on Infrared Thermal Imaging

doi:10.11930/j.issn.1004-9649.2016.09.035.06

Abstract

Abstract: Large thermal power in high voltage insulation unit often leads to serious local heat and short circuit fault. In order to ensure distribution power grid stability, security and reliability, a novel on-line detection technology is proposed for solid insulation ring main unit(RMU). Firstly, the original infrared thermal image is obtained and transmitted to distribution automation system master station by using different communication modes including 230 Mesh and fiber. The image is analyzed after preprocessing, noise filtering, image enhancement, and edge detection to detect fault in solid insulated RMU. This novel technology can diagnose electrical joints accurately comparing to traditional contact measurement method.

Key words: solid insulation, RMU, fault diagnosis, infrared thermal imaging, multi-mode communication, electrical joints

CLC Number:

TM72

YE Hairong, GE Leyi, ZHONG Guiying. Online Detection Technology of Solid Insulation RMU Based on Infrared Thermal Imaging[J]. Electric Power, 2016, 49(9): 35-40.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.09.035.06

https://www.electricpower.com.cn/EN/Y2016/V49/I9/35

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