Overcurrent issue in acid water pumps
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The rated current of the motor for the acid water pump is 9.6A. After inspecting the motor, an electrician found that one of the connections inside the motor was loose; after tightening it, the current during no-load testing of the motor was around 3A. After connecting the coupling, the motor was tested with the pump outlet closed; the current was 10.2 A. When the pump outlet was slightly opened, the current increased to 10.7 A. Contact the maintenance site to check that all aspects of the barring gear are functioning properly. What’s going on? I seek your advice! ! !
This post was last edited by “In order to keep living” on 2016-10-15 at 17:01. Is there anything abnormal with the crankshaft? Does not rotating the shaft without a coupling disk exacerbate it?
No abnormalities during shaft rotation; no issues when rotating the shaft without connecting the coupling……
Is there no abnormality when turning the shaft without connecting the coupling? Does that mean there’s a problem with turning the shaft when the coupling is connected?
Ladies and gentlemen. The problem is solved. . . . Corrosion of the pump impeller and casing increases the clearance, resulting in overpowering. . .
The problem is solved. . . . Corrosion of the pump impeller and casing increases the clearance, resulting in overpowering. . .
Try using a spare motor with the same power