11/28/2019 3:32 PM | |
Joined: 3/27/2008 Last visit: 8/18/2024 Posts: 1132 Rating:
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My. Response would be to lift the current and power settings to stop the current limit being tripped. Run the motor to full speed and use the inverter to monitor the running current, this will allow you to see what is happening. It is possible that the pump is ok, and the system, that is the static and dynamic pressures are creating the problem. Now with inverter acting as a useful monitor, investigate any valve which will restrict the flow, it is possible that the pump is operating on the incorrect part of the pump curve, for example, if a valve is available to restrict flow close it progressively and record findings. Looking for the control setting which permits the pump to operate over its full range. After this investigation, the system will be re commissioned to respect the pump motor which is in use. Note: This is a centrifugal submersible pump, these devices need to operate between minimum and maximum speeds, and must accelerate to this working band as soon as possible. Extended operation of a submersible pump lifting a head of water, at low speed will damage the pump bearings, only operation within the permitted ’window’ is acceptable. I hope this works out for you, come back if I can help further. |
Last edited by: tractor at: 11/28/2019 15:34:29Last edited by: tractor at: 11/28/2019 15:38:16Tractor |
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