Issues related to shielded pumps
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The reason for the fluctuations in the operating current of the shielded pump is that its rated current is 200A, while the current level is currently between 169A and 175A. Which expert can help answer this?
Fluctuations in current are related to the process; it depends on whether cavitation occurs in the medium being transported, or whether the air inside is not removed before the pump starts.
Check if, when the current fluctuates, the outlet pressure also fluctuates; this could indicate cavitation or gas entrapment.