A.甲区为恒转矩调速,乙区为恒功率调速; B.甲区调整电压,电压升高,转速提高;乙区调整 励磁,磁通量増加,转速提高; C.在甲区功率随着电压升高...

作者: tihaiku 人气: - 评论: 0
问题
选项 A.甲区为恒转矩调速,乙区为恒功率调速; B.甲区调整电压,电压升高,转速提高;乙区调整 励磁,磁通量増加,转速提高; C.在甲区功率随着电压升高而加大;在乙区功率随 着转矩的降低而减小; D.无论在甲区还是在乙区转矩和转速始终成正比。
答案 BCD
解析

相关内容:甲区,转矩,调速,乙区,功率,调整,电压,转速,励磁,磁通量,増加

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