摘要
针对配电线路容易出现触碰导线导致过电流变大损坏线路的问题,提出了配网线路自取电低功耗防外破智能指示装置的应用研究。计算电流互感器保护动作电流,采用差动过载保护器实现过电流安全保护。应用高透光性防雨水、防紫外线、防晒机械装置,实现环境极度恶劣条件下配电线路的运行。由应用实例分析结果可知,该装置在正常环境或恶劣环境下,过电流检测时间比现场人工排查时间分别早10min、30min,且维修时长也相对提前,能够有效保护配电线路。
In view of the problem that distribution lines are easy to damage lines due to excessive current caused by touching conductors,the application research of low power consumption anti external damage intelligent indicating device for self powered distribution lines is proposed.The protective action current of current transformer is calculated,and the differential overload protector is used to realize the overcurrent safety protection.High light transmission rain water and ultraviolet protection sunscreen mechanical device is applied to realize the operation of power distribution lines under extremely harsh conditions.It can be seen from the analysis results of application examples that under normal or harsh environments,the over-current detection time of the device is 10min and 30min earlier than the onsite manual troubleshooting time,and the maintenance time is also relatively early,which can effectively protect the distribution line.
作者
孟敬淞
MENG Jingsong(Guangxi Power Grid Co.,Ltd.,Guilin Power Supply Bureau,Guilin 541004,China)
出处
《通信电源技术》
2022年第23期194-196,共3页
Telecom Power Technology
关键词
配网线路
自取电
低功耗防外破
智能指示装置
distribution line
self-access power
low-power external break
intelligent indicator device
