摘要
火电厂、变电站电力电缆长期运行在高电压、大电流环境下 ,其接头容易超温过热 ,引起爆炸 ,导致火灾 ,建立电力电缆火灾在线监测系统具有必要性。为此 ,介绍发电厂电力电缆火灾在线监测系统的总体设计 ,硬件结构及接口设计。该系统的现场子站设计采用了新型数字式温度传感器 ,不仅功能强、可靠性高 ,而且兼有耗能低 。
Because power cable of the power plant and substation works in a high voltage and large current working conditions for a long time so that the over temperature power cable connection would explode and fire easily. It is necessary to set up a on line power cable fire supervise system. This paper introduces the design of the hardware and the communication interface in the electric power cable on line monitoring system. A new digital temperature sensor is used in the scene work substation, it makes the system having much more functions, high reliability, low power consumption and small package.
出处
《广东电力》
2002年第5期39-41,共3页
Guangdong Electric Power
