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.
ring main unitinsulation plugwireless temperature measurementpower harvesting from electric fieldfault warning
NETL
NSTL
万方数据
