基于无纸记录仪的变压器变压法真空干燥状态监控系统  

The monitoring system based on paperless recorder for transformer's vacuum drying system in variable-pressure method

作　　者：黄长征[1] 余波年[1] 

机构地区：[1]韶关学院物理与机电工程学院,广东韶关512005

出　　处：《真空》2012年第4期92-94,共3页Vacuum

基　　金：韶关市科技计划项目(2011CX/K25)

摘　　要：基于PLC或＂PLC＋上位机＂电力变压器变压法真空干燥状态监控系统,硬件系统相对复杂,需要A/D转换和人机界面组态。监控系统改用＂PLC＋无纸记录仪＂,硬件系统大大简化,无需计算机、A/D转换和人机界面组态;在干燥系统罗茨泵的两端并联一旁路阀,降低了罗茨泵的故障率,干燥周期缩短10%~30%,能耗降低1O%~25%,综合生产能力提高15%~25%。Generally,a monitoring system for transformer’s vacuum drying system in variable-pressure method is mainly made up of PLC or ＂PLC ＋ upper computer ＂.Its hardware system is relatively complex which needs A/D digital converter and human-computer interface configuration.A bypass valve is paralleled at both ends of Roots pump in the drying system.＂PLC ＋ Paperless Recorder ＂is applied in monitoring system.The practical application shows that the hardware system is greatly simplified,which does not need a computer,A/D digital converter or human-computer interface configuration,the failure rate of Roots pump is reduced,the drying cycle is shortened by 10%~30%,the energy consumption is reduced by 10%~25%,and the comprehensive production capacity is improved by 15%~25%.

关 键 词：真空干燥 电力变压器 无纸记录仪 变压法 PLC 状态监控 

分 类 号：TB79[一般工业技术—真空技术] TP273[自动化与计算机技术—检测技术与自动化装置]