Design of experimental device for frequency - converters 一种变频器实验装置的设计
Application of frequency - converter on water flow standard facility 变频器在水流量标准试验装置的应用
Application of frequency - converter control system based on the uss protocol 协议的变频控制系统的应用
A protective method based on voltage - frequency - converter and additional dc measuring the insulation between monitor wire and ground lines of hv double screen cable is developed and realized by analog and digital circuits 通过分析6kv电缆绝缘监视保护的特点,提出了在高压电缆监视线与接地线之间附加直流电源并利用v / f转换实现监视保护的新方法,设计了相应的电路。