deepstuff Posted June 16, 2009 Report Share Posted June 16, 2009 Hi, I have a single phase 1hp submersible pump in my 300-foot drilled well. It is 240 volt, single phase 3-wire system controled by a pressures switch connected to a pressure tank. It is capacitor start through a relay. Controls are by Franklin Electric. When pump is running (not starting) should I be able to measure 240V between the start winding and neutral leads of the pump motor? Is this normal or is the start relay stuck? Thanks! Link to comment Share on other sites More sharing options...
Clayts Posted June 17, 2009 Report Share Posted June 17, 2009 You sure it's not a run capacitor in which case it's alright! there is probably an internal common (where run & start are joined and coming out as one wire), one run and one start from motor into control box. where are you actually measuring the voltage at in the circuit and why are you testing the wiring. I'm assuming that it is tripping or going out on overload? Link to comment Share on other sites More sharing options...
yuri Posted June 17, 2009 Report Share Posted June 17, 2009 Better always to look at the currents - they are the best indicator of what happening. Link to comment Share on other sites More sharing options...
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