缆式线型感温火灾探测器特性分析及参数调整方法研究  

Research on Characteristic Analysis and Parameter Adjustment Method for Cable Type Linear Thermal Fire Detector

作　　者：谭风雷 张军 郭杨 汪海洋 徐鹏 TAN Fenglei;ZHANG Jun;GUO Yang;WANG Haiyang;XU Peng(State Grid Jiangsu Electric Power Company Limited Extra-High Voltage Branch Company,Nanjing 211102,China)

机构地区：[1]国网江苏省电力有限公司超高压分公司,江苏南京211102

出　　处：《湖南电力》2024年第4期100-104,共5页Hunan Electric Power

摘　　要：为判别缆式线型感温火灾探测器性能状态,提出了一种缆式线型感温火灾探测器特性分析及参数调整方法。首先在充分研究缆式线型感温火灾探测器等效电路的基础上,分析缆式线型感温火灾探测器绝缘电阻随温度和湿度的变化特性。然后建立了缆式线型感温火灾探测器温阻特性模型,提出一种性能判别方法,将缆式线型感温火灾探测器分为优秀、良好和不合格三种状态,并给出三种状态的处理方法。最后研制一套缆式线型感温火灾探测器温阻特性分析装置,并在某1000 kV特高压变电站现场进行应用,结果表明该装置能够正确判别性能状态,实际使用过程中发生的误报警显著减少。A method of analyzing characteristics and adjusting parameters of cable type linear thermal fire detector is proposed to achieve performance status discrimination.Firstly,on the basis of studying the equivalent circuit of cable type linear thermal fire detector,the variation characteristics of insulation resistance of cable type linear thermal fire detectors with temperature and humidity is analyzed.Then a temperature resistance characteristic model for cable type linear thermal fire detector is established.A performance discrimination method is proposed,which divides cable type linear temperature fire detector into three states(excellent,good,and unqualified),and provides processing methods for these three states.Finally,a set of temperature resistance characteristic analysis device for cable type linear temperature fire detector is developed and it′s applied on site at a 1000 kV ultra-high voltage substation.The results show that the device can accurately distinguish the performance status of cable type linear thermal fire detector,and significantly reduce false alarms during actual using.

关 键 词：缆式线型感温火灾探测器 特性分析 性能状态 判别方法 参数调整 

分 类 号：X932[环境科学与工程—安全科学] TM63[电气工程—电力系统及自动化]