My company just had a deep water well drilled at one of our utility stations and the pump installed is a 120/208 three phase 1-1/2hp. I will be running a three phase circuit to the pump. Because this is a three phase pump some kind of motor starter is required, correct? Probaly triggered by a pressure switch?
3-Phase Well Pump?
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hillbilly1
Senior Member
- Location
- North Georgia mountains
- Occupation
- Owner/electrical contractor
Yes, you will need a starter. What the pump is used for will determine the control scheme. Does it pump into a bladder type pressure tank? In ground holding tank? Water tower?
Yes, its 550 ft deep.
some of those I have seen have thermal protection with leads that can be wired back to a contactor in series with your pressure switch.
If there is no internal protection, you do need to provide overloads and that is often accomplished with a magnetic starter.
If there is no internal protection, you do need to provide overloads and that is often accomplished with a magnetic starter.
masterinbama
Senior Member
- Location
- Huntsville Alabama
Wow 550 FT. That's pushing 240 PSI just to get the water to the top of the well.
ptonsparky
Tom
- Occupation
- EC - retired
Is the 500 gallon tank under pressure or just a holding tank?
- Location
- Bremerton, Washington
- Occupation
- Master Electrician
Every motor requires a disconnect, (in this case ahead of the controller) a controller, motor overloads and motor branch circuit short circuit and ground fault protection.
Since this is three phase, it may be easier to get a pump control panel, with 120volt controls, hand off auto, wire the pressure switch to the auto position. the company that set the submersible can provide this.
Note: while the well may be 550 ft deep, the pumping level may be much less. It depends on how far up the column the static water level is.
Since this is three phase, it may be easier to get a pump control panel, with 120volt controls, hand off auto, wire the pressure switch to the auto position. the company that set the submersible can provide this.
Note: while the well may be 550 ft deep, the pumping level may be much less. It depends on how far up the column the static water level is.
kwired
Electron manager
- Location
- NE Nebraska
- Occupation
- EC
They can, but I would rather make some profit from selling it. I have to mount the thing, connect it, and often will be the one called back if something does not work, even if it is not my equipment that fails.
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