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2018-12-18View Original

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펌프가 작동 시작할 때 큰 전류가 발생하는 이유
Reply #22018-12-18
펌프가 작동 시작할 때 큰 전류가 발생하는 이유는 무엇인가요? 대박 님의 도움이 필요합니다
Reply #32018-12-18
모터가 작동 시작할 때 큰 전류가 발생하는 것은 당연합니다
Reply #42018-12-18
비유적으로 말하자면 모터가 작동 시작할 때는 단락전류와 같습니다 그래서 전류가 크다
Reply #52018-12-19
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Reply #62018-12-19
设备启动电流大就好比是给设备一定的原始动力,原始动力需要克服各种外在因素才可以动作起来,在达到一定的运行状态后,电流正常,这就是电机启动电流大的原因。
Reply #72018-12-19
启动电流大是正常的,如果启动后出口压力正常,泵正常工作时电流还大,那就有问题了
Reply #82018-12-20
启动前要克服动转子,壳体及介质之前的巨大摩擦!
Reply #92018-12-20
谢谢大家积极讨论,这个问题我研究到感应电动势,和感抗的时候就难住了,我感觉问题就在这里,把这个弄明白了就好了,,感应电动势的产生对电机的运行有什么影响?还有电机感抗产生的条件是什么?感抗的产生对电机的运行有什么影响?产生的条件是什么?最好用公式+文字解释一下,跪求大佬!
Reply #102018-12-24
可采用软启动和变频启动两种方式 减小启动电流
Reply #112019-01-01
电机启动时转子从静止状态变为旋转状态,需要极大的扭力;离心泵启动时因为有介质,带负荷启动,电流会更大些。
Reply #122019-03-29
静摩擦要比动摩擦大很多。简单理解,就是电机启动时要克服转子(泵负荷)的静摩擦,电流大很正常,但不要持续时间过长就行。

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