1.5 HP well pump [RE-wrenches]

[Todd Cory, Mt. Shasta Energy Services]

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Wrenches,

I inherited a poorly designed off grid system I am working on. It has a 
stacked (240 volt) pair of DR1512 inverters fed by 12 L-16H batteries 
(12 volts at 2500 a/h!!) trying to start a 1.5 HP well pump! The 
inverters amazingly can occasionally start the pump when the batteries 
are fully charged, but you know this has got to be a struggle for them.

I recall at one time someone saying increasing the capacitance of the 
starting capacitor would ease the starting. It has a 240 volt 120 MFD 
one now. What would people suggest (other than larger inverters) to make 
this pump start reliably? Doesn't someone make a soft start control for 
a well pump?

Thanks,

Todd

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