摘要
DCS和PLC的广泛应用,反映出传统的由继电器接触器控制的保护系统存在可靠性差、操作复杂、故障率高、电能浪费大、效率低等缺点。本文针对我厂2#汽轮机的热工保护现状提出将可编程序控制器应用于其保护系统,可提高系统的稳定性、可靠性。
Aiming at the disadvantages of the traditional protection system controlled by relay contactor,such as poor reliability,complicated operation,high failure rate,energy waste and low efficiency,the author presents the application of programmable logic controller which can improve the stability and reliability of in the protection system of No.2 steam turbine.
出处
《江西煤炭科技》
2010年第4期79-81,共3页
Jiangxi Coal Science & Technology
关键词
可编程序控制器
热工保护
稳定性
programmable logic controller
thermal protection
stability
