摘要
电力系统每年上千个千瓦级发电机组需要监控系统，200多个地区、3000多个县的电网调度、变电站需要控制装置．随着技术的进步与自动化程度的不断提高以及电力系统减员增效要求的提出．实现变电站综合自动化从而达到无人值班，已成为电力系统发展的趋势。
The field bus technology brings the isolated field equipments into the enterprise information network. The field bus is featured for： high reliability, good stability, strong disturbance-resistance, fast communication speed, safe system, compliance with the requirement of environment protection, low price, and low maintenance cost Due to the limited information volume, the conventional 4-20mA signal connection has severely constrained the realization of enterprise information integration and enterprise general information. The adoption of field bus will simplify the structure of control system, reduce the system installation cost and enhance the convenience of maintenance. The customers can choose freely the field equipments of different manufacturers and different brands for the best system integration.
出处
《电器工业》
2007年第11期22-25,共4页
CHINA ELECTRICAL EQUIPMENT INDUSTRY
