【摘要】 制约中小型火电厂或热电厂DCS系统安全、稳定、可靠运行的重要干扰因素是电源供应、信号归类及电缆敷设、接地系统的设计、施工及维护问题;通过分析DCS对电源、信号、接地的抗干扰要求,结合工程设计经验,阐述了这三方面的抗干扰设计方案,提出了施工及维护中的一些注意事项以供项目参考。更多还原

【Abstract】 Important interference factors that restrict DCS security,stability and reliable operation in small and medium-sized power plants or thermal power plants,are problems of power supply,signals classified and cables laying,and grounding system.Through the analysis of DCS’s anti-interference requirements for power,signals and grounding,according to the engineering design experience,expounded the anti-interference design scheme for three aspects and put forward some attentions of the construction and maintenance for project reference.更多还原