Has anybody ever used a soft start on a 3/4 hp single phase 240v well pump? I have recently installed a 48v /4400w Magnum inverter backed up by 600ah of LiFePo4 batteries. The system works great powering critical loads in my house. Next step is solar panels.
The issue I am trying to solve for is that when the well pump starts the lights dim and then go bright for literally a split second as the inverter ramps up to handle the inrush current and then has to quickly ramp back down once the pump has started. The same thing happens when I'm running on a generator as the VR has to quickly respond to the inrush current load and then back off, all in a split second. The pump is not submersible.
I have done some digging and it looks like the device at the link below may solve the problem but I have 0 experience with this and am hoping that someone here may already have been down this road. The label on the motor states that at 240v the draw is 6.3a with a max load of 7.4a. I'm not sure if the 7.4 accounts for the inrush current though.
Thanks as always
The issue I am trying to solve for is that when the well pump starts the lights dim and then go bright for literally a split second as the inverter ramps up to handle the inrush current and then has to quickly ramp back down once the pump has started. The same thing happens when I'm running on a generator as the VR has to quickly respond to the inrush current load and then back off, all in a split second. The pump is not submersible.
I have done some digging and it looks like the device at the link below may solve the problem but I have 0 experience with this and am hoping that someone here may already have been down this road. The label on the motor states that at 240v the draw is 6.3a with a max load of 7.4a. I'm not sure if the 7.4 accounts for the inrush current though.
ATS01N109FT - soft starter for asynchronous motor - ATS01 - 9 A - 110..480V - 1.1..4 KW | Schneider Electric Global
Schneider Electric Global. ATS01N109FT - soft starter for asynchronous motor - ATS01 - 9 A - 110..480V - 1.1..4 KW.
www.se.com
Thanks as always
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