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【多选题】
绕线式三相异步电动机转子串电阻启动的优点有( )A.
能减小启动电流
B.
能增大启动转矩
C.
串入合适大小的电阻时,还能实现以最大转矩启动。
D.
还可用于调速
E.
结构简单、价格便宜
F.
启动过程平滑
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