描述
其他和输出转矩有关的因素
发热和散热能力决定变频器的输出电流能力,从而影响变频器的输出转矩能力。
载波频率:一般变频器所标的额定电流都是以最高载波频率,最高环境温度下能保证持续输出的数值.降低载波频率,电机的电流不会受到影响。但元器件的发热会减小。
环境温度:就象不会因为检测到周围温度比较低时就增大变频器保护电流值.
海拔高度:海拔高度增加,对散热和绝缘性能都有影响.一般1000m以下可以不考虑.以上每1000米降容5%就可以了.
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①Allen-Bradley(美国AB)系列产品》
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据通信及处理等。Invensys Triconex:冗余容错控制系统、基于三重模件冗余(TMR)
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