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2018-10-23View Original

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Reply #22018-10-23

"전动机功率（7.5kw）小于泵的轴功率（8.2kw），这样对电机会有影响吗？",

Reply #32018-10-23

"전动机功率（7.5kw）小于泵的轴功率（8.2kw）这样对电机会有影响吗？",

Reply #42018-10-23

"3轴功率只是泵所需的功率实际上电机运行会消耗功率；现在泵的功率为8.2KW但是实际上电机输出功率应该约为7.5KW电机才选的7.5KW差的太远电机过载小的电机烧毁也不是不可能",

Reply #52018-10-24

"为什么是7.5kw不是7.1倍吗",

Reply #62018-10-24

"小马拉大车电机过载容易烧毁电机",

Reply #72018-10-24

"通常电机装配都会有部件间隙机械损耗去掉机械损耗后大部分实际有效功率为70%"，

Reply #82018-10-24

"在水泵额定工况下工作电机长期发热绝缘降低轴承损坏最终会故障如果水泵再稍偏大流量工况电机发热严重短期内会烧毁",

Reply #92018-10-24

"兄弟约啊约7.2kw干嘛这么较真低功率按7.5倍换算··············"

Reply #102018-10-24

"说的很好直接影响就是电流增大电机发热至于热到什么程度看你给的两个功率查那么多应该不会有长期影响短时间就直接废了这种选型配合的机械设备环节多损耗大哪个环节稍微不给力效率会大打折扣所以实际上选型时一般都偏保守功率会偏大:)"

Reply #112018-10-28

"单从数字上看电机肯定超负载"

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