环网柜绝缘塞测温技术研究与应用探索

Research and Application Exploration of Temperature Measurement Technology for Insulation Plugs of Ring Main Unit

随着电力系统的不断发展,中压设备尤其是环网柜、电缆分支箱和充气式开关柜的使用越来越普遍。这些设备的可靠性对电网的稳定运行至关重要。电缆故障,尤其是由绝缘和接触不良引起的发热问题,已成为供电部门面临的主要挑战。传统的故障检测方法由于受到绝缘材料隔热性的影响,难以准确掌握故障点。文章介绍了一种新型的绝缘塞测温传感器,该传感器采用电场能取电技术,具有无线数据传输、高精度感知、抗干扰能力强等特点,可有效监测中压设备电气节点的温度变化,为电网故障的早期预警提供了新的技术手段。

With the continuous development of the power system,the use of medium-voltage equipment,especially ring main units,cable branch boxes,and gas-insulated switchgear,has become increasingly common.The reliability of these devices is crucial to the stable operation of the power grid.Cable failures,especially heating issues caused by insulation and poor contact,have become a major challenge for power supply departments.Traditional fault detection methods are difficult to accurately locate the fault point due to the insulating material's thermal insulation properties.This article introduces a new type of insulation plug temperature sensor that adopts electric field energy harvesting technology.With wireless data transmission,high-precision perception,and strong anti-interference capabilities,it can effectively monitor the temperature changes of electrical nodes in medium-voltage equipment,providing a new technical means for early warning of power grid faults.