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高压电力电缆是电力输、变、配电系统的重要组成部分,高压电缆头是连接高压电缆的主要部件。随着技术进步,高压电缆大多选用插拔式电缆头,而电缆头的故障率在电力电缆运行中占很高的比例。电缆头发生故障前,一般首先表现在温度升高,达到一定的温度后会发生接地或相间短路引起绝缘击穿、电缆头爆炸的事故,造成停电事故。因此对于高压电缆头的温度进行实时监测是非常必要的,随时掌握电缆接头的运行工况,适时组织维修,是保障电力系统安全运行的重要措施。本文对应用光纤实现高压电缆插拔式电缆头测温方法进行论述,供专业人员参考。
High-voltage power cables are an important part of power transmission, transformation and distribution systems. High-voltage cable heads are the main components for connecting high-voltage cables. As technology advances, most of the high-voltage cables use plug-in cable heads, while the failure rate of the cable head accounts for a high proportion of the power cable operations. Cable fault occurs before the first general performance in the temperature rise, to a certain temperature will occur after the ground or short circuit caused by insulation breakdown, the first cable explosion accident, resulting in power outages. Therefore, it is very necessary to monitor the temperature of the high-voltage cable head in real time. Keeping the working condition of the cable connector and organizing and repairing in time are important measures to ensure the safe operation of the power system. This article discusses the application of optical fiber high-voltage cable pluggable cable head temperature measurement methods discussed for professional reference.