无线测温在线监测预警系统在章村矿35kV变电站的应用

本文简要阐述了随着煤炭负荷日益增加,对变电站电力设备温度监测以避免电力事故的重要意义,指出了对电力设备温度在线监测预警的必要性,以图文形式介绍了无线测温在线监测预警系统构成和功能特点,通过在章村矿35kV变电站的成功应用,并与该矿变电站原有的综合自动化系统有机融合,切实提高了该矿变电站供电系统的安全可靠性和自动化水平。

低压配电系统进线断路器运行温度在线监测

介绍了在线无线测温技术在低压配电系统中应用,解决了低压进线断路器运行过程中发热却又不能及时发现,极易造成各类电气事故这一常见电气技术问题。

刍议通信机房电缆温升检测与预警技术应用分析

动力系统作为通信网络的基础,其安全运行是网络健壮的前提。随着通信业务发展,机房设备用电需求急剧上升,电缆载流量增加、运行温度升高,带来较大的安全隐患。此外,由于电缆沟、母排等皆为动环监控薄弱区域,人工巡检不便,使得智能化温度监测需求尤为迫切。本文对两种电缆温度检测与预警技术应用情况进行了研究分析,对应用手段推广可能性进行探究,对机房温度安全预警及运维具有重要意义。

开关柜母线桩头侧绝缘套管的事故预控

防止封闭母线开关柜母线桩头绝缘套管热击穿事故,要从检修和运行温度在线监测着手采取措施。分析了一起开关柜母线桩头侧绝缘套管的绝缘击穿事故,建立了一套小车断路器触头弹簧性能劣化的日常检修方案和标准,提出了对开关柜母线桩头侧绝缘套管内动静触头进行温度测试的在线"接触式"无线测温系统,完善了当前对开关柜日常巡视和检修中存在的不足。

Study of Isolated Contact Temperature Monitoring System Based on Optical Wireless Sensing Technology

In view of the high voltage, the strong magnetic field environment of the high-voltage switchgear, the system based on the optical wireless sensing technology, realizes the isolated contact temperature monitoring of the high-voltage switchgear. In this scheme, the good thermal conductivity and insulation ceramic materials were selected as the outer jacket material sensing probe, and the program had a good solution to the problem of high and low voltage isolation; The combination of the optical fiber composite insulators for wireless sensing, not only solves the problem of high voltage insulation, but also avoids the ＂creeping＂ phenomenon due to dust. The package of the structure and reasonable installation solves the cross sensitivity of strain. The application showed that the precision of temperature measurement of the system could reach ± 0.5 ℃ and could work in a variety of harsh environments. It could improve the reliability of the operation of the electrical equipment significantly and has considerable practical value for the whole power system.