中压电力电缆状态诊断技术在香港地区的创新及应用  

Innovation and application for condition assessment technology of medium-voltage power cables in Hong Kong region

作　　者：朱科 麦晃铨 区伟年 甄家荣 ZHU Ke;MAK Fong Chuen;AU Wai Nin;YAN Ka Wing(The Hongkong Electric Company,Limited,Hong Kong Special Administrative Region 999077)

机构地区：[1]香港电灯有限公司,中国香港特别行政区999077

出　　处：《供用电》2025年第3期94-103,共10页Distribution & Utilization

摘　　要：香港电灯有限公司(简称港灯)通过保持长达27年99.999%的高可靠性运行纪录,为香港地区长期繁荣稳定作出积极贡献。针对中压电力电缆状态诊断技术,全面介绍了港灯基于极低频检测技术而构建的电缆健康指数、三高指数、人工智能的诊断模型,以及基于三相阻抗绝缘不平衡度的电缆评估标准等创新应用和实践案例。分享实践经验的同时也对电力电缆状态诊断技术提出前瞻性的建议,以期进一步提升电力电缆检测的可靠性。The Hongkong Electric Company,Limited(hereinafter referred as HK Electric)has made tremendous contribution to the long-term prosperity and stability of Hong Kong region by providing a high reliable power supply of 99.999% reliability in last 27 years.Focusing on the condition assessment of medium voltage power cables as the theme,this paper comprehensively introduces the cable health index(HI),three-hyper index,artificial intelligence assessment model built by the Hong Kong Electric Power Company,based on the very low frequency testing technology,as well as the innovative applications and practice cases of the built cable evaluation standard based on the three-phase resistance insulation imbalance.In addition to the sharing of practical experience at HK Electric,the authors also put forward their insightful thoughts about power cable diagnosis technology,with the purpose to further improve the reliability of power distribution network.

关 键 词：配电网 中压电力电缆 状态诊断 极低频检测 绝缘阻抗 人工智能 

分 类 号：TM72[电气工程—电力系统及自动化]