Application of Graph Theory in Optimal Coordination of Relay Protecting System in Multiloop Transmission Line 用图论优化复杂环网继电保护整定配合的简便算法
DC power supply system is the most important part of power equipment, such as power plant and transformer substation. It supplies power for relay protecting, measurement system, communication system, monitor system and accident lighting. 直流电源系统是发电厂和变电站等电力设备的重要组成部份,它承担对继电器保护装置、测量系统、通信系统、监控系统、事故照明等设备的供电任务。