摘要
动力电缆温度监测是及时发现电缆线路局部过热点位置、检测运行线路的绝缘状态、保障电缆安全稳定运行的技术措施。文中首先介绍了基于喇曼散射的光纤分布式测温的基本原理和基于光时域反射技术的空间定位原理。给出了基于拉曼散射的光纤分布式测温系统的组成、功能和技术指标。最后,结合电力系统的实际情况,给出了感温光缆的具体施工方法。
Technology of power cable temperature testing is an important technology to submit the location of local overheating,detect the installation status,and ensure the safe and stable operation of power cable.The temperature test principle based on fiber Raman scatting sensing technology and the localization principle on position of temperature measuring based on optical time domain reflection are presented.System configuration,functions and technical characteristics of Raman scatting based distributed optical fiber temperature sensor system for power cable are given.Laying methods of heat sensitive optical fiber cable are introduced according to the real situation of electric power system.
出处
《自动化与仪表》
北大核心
2011年第11期57-60,共4页
Automation & Instrumentation
基金
国家电网公司科技项目资助(GSKJ-2011040)
关键词
光纤传感
分布式测温系统
喇曼散射
optical fiber sensor
distributed temperature testing system
Raman scatting
