Centrifugal pump
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What is the relationship between the current of a centrifugal pump and its outlet flow rate?
When the centrifugal pump first starts, the outlet valve is closed, resulting in an instantaneous maximum current, which then decreases. The outlet valve is then opened; as the flow rate increases, the current also increases, and in severe cases, overcurrent occurs.
Why does the current increase as well when the flow rate increases?
No arithmetic formulas are available to use.
The relationship between the current and flow rate of centrifugal pumps: http://bbs.hcbbs.com/thread-473624-1-1.html (Source: Haichuan Chemical Industry Forum). You can take a look at this
As the flow rate increases, the power per unit time rises, so the current has to increase as well
Middle school physics: do more work. At the very least, the current has to increase as well