question

tieole avatar image
tieole asked

Multiplus 3000 with a pump Pedrollo 4SR6m/13

We've just installed a MultiPlus 3000/48 to run a pump Pedrollo 4SR6m/13 (https://www.arrosage-distribution.fr/pompe-4-sr-6m-13-pedrollo-6198.html). The pump is rated at 1500W, but seems to pull more like 2300W.


However the Color Control indicates that we're pulling 2877W from the battery, but only supplying 2277W to the pump. There is also a 148W dc load (the inverter?) So where is the 450W going?

Of course at 2900W the Multiplus gives me a overload warning, and after a half hour shuts off with an overtemp warning on the Color Control.

The only solution I've come up with for the moment is changing the Multiplus 3kw for a 5kW, but would hope to find another solution.



MultiPlus Quattro Inverter Charger48v battery
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1 Answer
Murray van Graan avatar image
Murray van Graan answered ·

It’s probably because of the pump’s power factor. You could raise the output voltage of the multi to 240Vac in veconfig, that should see the running current drop a little. The long term solution is however to use a 5KVA unit as the temperature derating of the 3KVA means it will always be too small when it heats up.

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