What to do if the motor protection trips on my Grindex Water Pump?
If your Grindex Water Pump runs but the motor protection trips, it could be due to a few reasons. The motor protection might be set too low; in this case, set it according to the data plate and cable chart if applicable. Additionally, if the impeller is difficult to rotate by hand, clean the impeller and the sump, and ensure the impeller is properly trimmed.
Why does my Grindex Matador N Water Pump start and stop in rapid sequence?
If your Grindex Water Pump starts and stops rapidly, it could be due to back-flow causing the sump to refill to the start level. Ensure the distance between the start and stop levels is sufficient and that the non-return valves are functioning properly. Also, confirm that the length of the discharge pipe between the pump and the first non-return valve is sufficiently short. Alternatively, the self-holding function of the contactor may be malfunctioning. Check the contactor connections, the voltage in the control circuit in relation to the rated voltages on the coil, and the functioning of the stop-level regulator. Determine whether the voltage drop in the line at the starting surge causes the contactor's self-holding malfunction.
General| Protection class | IP 68 |
|---|---|
| Type | Submersible sludge pump |
| Frequency | 50 Hz / 60 Hz |
| Discharge | 2" - 6" |
| Voltage | 220 - 690 V |
| Inlet Diameter | 2" - 6" |
| Outlet Diameter | 2" - 6" |
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