一种改良型干式空心电抗器的无线测温装置设计

Design of Wireless Temperature Measurement Device Based on an Improved Dry Type Air Core Reactor

国内某些地区,由于电源点密集,线路较长,导致电网长期处于无功过剩,电压偏高的状态,严重影响了电网系统的稳定运行。为了解决该问题,电网中大量采用电抗器进行无功补偿,以提高系统运行的稳定性。但是根据多年的运行情况来看,电抗器的故障和异常问题,最明显的表征量就是温度,如果能对电抗器包封内的温度进行实时监测,理论上可避免绝大部分故障。文中提出了一种改良型的无线测温装置的设计,该装置安装于电抗器封包内,能准确实时地反映电抗器的运行状态,方便运维人员提前对电抗器故障进行诊断和预防。

Due to high density of power sources and long distances of transmission lines, operation of the power grid in some areas in China is often in the state of reactive power surplus and high voltage for a long time, causing serious impacts on the stable operation of the power system. To address this problem, the power grid uses a large number of reactors for reactive compensation to improve the stability of the system. According to many years of operation experience, the most obvious one is temperature rise. If it is workable to monitor the reahime temperature inside the reactor sealing, then most of faults and abnormalities can be avoided in theory. This article presents an improved design of wireless temperature measurement device, which is able to be installed inside the reactor sealing to monitor the real-time working condition inside the sealing and convenient for the operation and maintenance personnel for early diagnosis and prevention of reactor faults.