In this paper the type, topology, devices and control of foreign Marine converters is introduced, the trends of the Marine middle voltage high power propelling converters is discussed.
本文介绍了国外船用变频器的主要类型、结构、所用器件及控制技术，指出了船用中压大功率推进变频器的发展趋势。
Middle Voltage Inverter; rectifiers; net communication.
中压变频器；整流器；网络通信。
The vacuum circuit breaker is a kind of switch equipment which is used in the middle-voltage field in the power system, which undertakes double tasks of controlling and protecting.
真空断路器是电力系统中压领域的一种开关设备，它担负着控制和保护的双重任务。
In the power supplying system, the implementation of the online displaying of the primary system diagrams of middle-voltage switchgear in various measuring and protection device is very important.
在电力系统中，中压开关柜一次系统图在各种测量及保护装置中的在线显示和实现非常重要。
In the power supplying system, the implementation of the online displaying of the primary system diagrams of middle-voltage switchgear in various measuring and protection device is very important.
在电力系统中，中压开关柜一次系统图在各种测量及保护装置中的在线显示和实现非常重要。
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