The traditional relay protection debugging technology of generator-transformer group ignores the suppression of voltage distortion of generator-transformer group, which leads to the phase lag problem of generator-tran...The traditional relay protection debugging technology of generator-transformer group ignores the suppression of voltage distortion of generator-transformer group, which leads to the phase lag problem of generator-transformer group in the process of relay protection, and cannot realize the relay protection of generator-transformer group of power plant grid-connected unitsin stable and safe debugging. The protection effect of power relay is reduced with the application of automation and intelligent technology, so we should study new technology. This paper takes the remote operation and maintenance technology of power relay protection as the research object, and analyzes the specific application and development status of this technology in modern society. It is hoped that it can be helpful to the future development of power relay protection and is beneficial to my country's power relay protection with stable development.展开更多
Modern telecommunication methods have many impacts on manufacturing, and tele service has become one of the strategic approaches to realize the ideas of a flexible manufacturing system. Monitoring and maintenance of ...Modern telecommunication methods have many impacts on manufacturing, and tele service has become one of the strategic approaches to realize the ideas of a flexible manufacturing system. Monitoring and maintenance of production lines from the remote monitor center is an important application of such techniques. This paper presents a typical model of tele service systems and discusses the underlying challenges. RMMST (remote monitoring and maintenance system testbed), based on PC PLC and their networks which are used widely in production lines, is presented in detail as a concrete example. With the support of digital technique, RMMST can be used in the monitoring and maintenance of remote production lines conveniently.展开更多
文摘The traditional relay protection debugging technology of generator-transformer group ignores the suppression of voltage distortion of generator-transformer group, which leads to the phase lag problem of generator-transformer group in the process of relay protection, and cannot realize the relay protection of generator-transformer group of power plant grid-connected unitsin stable and safe debugging. The protection effect of power relay is reduced with the application of automation and intelligent technology, so we should study new technology. This paper takes the remote operation and maintenance technology of power relay protection as the research object, and analyzes the specific application and development status of this technology in modern society. It is hoped that it can be helpful to the future development of power relay protection and is beneficial to my country's power relay protection with stable development.
文摘Modern telecommunication methods have many impacts on manufacturing, and tele service has become one of the strategic approaches to realize the ideas of a flexible manufacturing system. Monitoring and maintenance of production lines from the remote monitor center is an important application of such techniques. This paper presents a typical model of tele service systems and discusses the underlying challenges. RMMST (remote monitoring and maintenance system testbed), based on PC PLC and their networks which are used widely in production lines, is presented in detail as a concrete example. With the support of digital technique, RMMST can be used in the monitoring and maintenance of remote production lines conveniently.
