The results of research and manufacture show that if fulfils the specification of aero high voltage REPM DC motor after commutation problem is solved, and it is possible to use traditional structure.
解决了高空换向难题之后电动机能满足航空电机的技术要求，采用传统的有刷结构是完全可行的。
Commutation failure is one of the most common failures for the high voltage direct current transmission system.
在特高压直流输电中换相失败也是主要的故障。
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