摘要
文章对继电器控制模式的变压器强迫油循环风冷控制系统进行分析,提出了以PLC和触摸屏作为主控单元的一种新控制方法,该方法通过实时采集变压器顶层油温模拟量信号(Pt100)、油温开关量信号,综合控制冷却容量随变压器顶层油温变化而自动调节,避免了变压器在低温低负荷下造成油温偏低和在高温大负荷下造成油温过高的情况发生,同时实现了周期轮换和风冷控制系统的自诊断功能。
The relay-type mode control system of forced oil cycle air cooling transformer is analyzed,and a new method which take PLC and touching screen as the main control unit is proposed.The integrated control cooling capacity regulates automatically based on the real-time collecting analog signal（Pt100） and digital signal of top oil temperature of transformer,preventing the transformer oil from too high temperature during hot and peak load period,or too low temperature during cold and light load,and achieving cycle rotation and self-diagnostic function of the cooling control system.
出处
《供用电》
2015年第10期76-80,共5页
Distribution & Utilization
