Can pump casing corrosion cause overcurrent in the motor?
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After the pump was started from a stopped state, it stopped operating on the same day due to overcurrent. After the operator went to the site to restart it, overcurrent was still detected; closing the pump’s outlet valve also resulted in overcurrent being detected. Upon inspection, no abnormalities were found in the pump motor’s instruments. Apart from corrosion on the pump casing, no other issues were detected. Could it be that the overcurrent is caused by corrosion of the pump casing? And why?
Check whether there will be any jamming after leaving it for a long time, and also see if the terminals are corroded.
Before putting a decommissioned pump back into service, it should be disassembled and cleaned; has it been thoroughly treated?
Quickly check that gauge to see if it’s a problem with the ammeter’s display