摘要
NSD550是载波机和保护装置的智能接口设备,在我国500 kV线路和部分220 kV输电线 路上应用广泛。其设计合理、性能完善、接口灵活,并具有完善的信号监测和告警系统。文中重点分 析了NSD550保护接口设备的动作原理和设备特点。
The NSD550 equipment is a kind of special modem between the carrier and relay protection. It cooperates with the relay protective gear by the carrier circuit to transmit trip command signals safely and effectively. It is widely applied to 500 kV and some 220 kV power transmission lines in China. It has reasonable design, good performance and flexible interface and has the functions of signal monitoring and alarming. This paper focuses on the operation principle and characteristics of the NSD550 carrier protection interface equipment.
出处
《水电自动化与大坝监测》
2003年第1期73-75,共3页
HYDROPOWER AUTOMATION AND DAM MONITORING
关键词
继电保护
接口
载波通信
protective relaying
interface
carrier-current communication
