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4千瓦水泵的启动电流
4千瓦水泵的启动电流
2020-05-29T12:05:27+00:00
计算水泵电流百度知道
50KW的水泵按满载电流计算的话，用公式：Ⅰe＝Pe／Ue／√3／cosφ／η 额定电压380V，功率因数cosφ取086，效率η取09则额定电流 May 31, 2020 题主可能并不知道具体的电流，所以按照经验以5463a为例子选择电动机保护断路器ic65l ma 8a 3p 其他答主说的20a肯定是普通配电型的断路器。或者d脱扣，需 3千瓦水泵要选多少A的开关？ 知乎
星三角降压启动时，启动电流如何计算 知乎 知乎专栏
2、三角形运行的电机在星形连接运行时，线电流=相电流，由于加在电机各相绕组的相电压=线电压÷1732=220V，因此线电流=相电流=254A，实际启动电流应按254A来乘以启动倍数，而不是按44A来计算启动电流。 3、 星形接法特点为：有助于降低绕组线圈承受电压（220V），降低绝缘等级，降低了启动电流；缺点就是电动机功率减小，所以小功率电机4kW以下的大部分都是采用星形接法。 而 为什么4kW以上的电动机用三角形接法？ 知乎 知乎专栏
4KW的管道泵，一启动，断路器马上就跳闸 工控人家园
Jul 3, 2009 昨天去调试一套设备，其中有一台水泵，只要按一下启动按钮，断路器马上就跳闸，水泵4kw，断路器16a。 水泵没有卡死，检查了电路，没有问题，热继输出的三相电 关注 9 人 赞同了该回答 在继电保护正确运行的情况下，不会。 电动机起动过程中，启动电流的大小会达到额定电流的6~8倍。 但是从发热到烧毁需要一个过程， 或者说电流需 电动机启动电流高于额定电流几倍，不会瞬间烧坏吗？
90千瓦消防泵启动电流计算方法 电工之家
May 28, 2021 电工公式计算：I＝P÷（U×√3×cosΦ）＝90000÷（380×1732×08）＝171A 那么90千瓦消防泵的额定电流值为171A，2种算法数据相差不大 备注，P：功率 U：电 Jul 23, 2020 90kw的水泵采用星三角降压起动，如果 按 启动电流15倍算，那么电流为180*15=270a，非常接近了。所以启动时290a的电流参数是很正常的。 那到底是什么 星三角启动90千瓦的消防泵，启动瞬间电流290A，这正常
4千瓦潜水泵用几平方电缆矿用电缆网
4KW的潜水泵需要25平方的铝电缆线。 可以使用10平方的铝线,4千瓦380伏三相水泵工作电流是8A左右,铝芯线的安全载流量以3~5A计算,10平方铝芯线可以载流30~50A,考虑500米 3千瓦水泵的起动电流有多大 提交答案 匿名 最佳答案 本回答由达人推荐 匿名用户 20170707 回答 额定电流的4~7倍。 3千瓦水泵的起动电流有多大 搜狗问问
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