I'm looking for a way to stop a 240vac pressure pump on a rainwater tank, if a pipe breaks. Pressure pumps normally turn on an off as you are using them . The pressure "bulb" (like on an air compressor tank) turns on and off as you are using them. The electric motor turns on an off to keep the pressure constant.
However when a pipe breaks the pump will run continuosly until all the water is gone and overheats the pump and destroys it.
I'm looking for something that will turn of the power supply if the pump runs continously
for half an hour, or hour.
I had ideas of a VOX (as thats how I know a pump is going) But if you are away from home thats no good. A mic on the pump, or a current sensing device.
However when a pipe breaks the pump will run continuosly until all the water is gone and overheats the pump and destroys it.
I'm looking for something that will turn of the power supply if the pump runs continously
for half an hour, or hour.
I had ideas of a VOX (as thats how I know a pump is going) But if you are away from home thats no good. A mic on the pump, or a current sensing device.