Current exceeds limit when outlet valve is not open
Thread Content
Rated current is 20.6. The current when the outlet valve is not open is 22.1. It is easy to manually turn the pump by hand. Seeking advice
Check whether the outlet valve is damaged, the condition of the bearings, the clearance of the coupling, and electrical aspects such as grounding and single-phase connections. . . . .
Is it an axial flow pump, a mixed-flow pump, or a centrifugal pump? The shaft and mixed-flow pump are normal; there is a problem with the centrifugal pump.
It depends on the medium; the higher the density, the greater the current
The axial flow pump experiences the highest load and current when the valve is closed. You first need to determine what type of pump it is.