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Hi
Richard
Be
sure to look into the less common three wire AC pumps as they
require significantly less amperage than the more common two wire
pumps. Even the best well drillers are not aware of this; talk to the pump
manufacturer. Also, to reduce loss, go a size or two heavier on
the wire. It may not be necessary, but you may want to consider two
inverters to give you true 240v. Be sure to consider emergency fire
suppression in your calculations.
Harry
Schneider
-----Original Message-----
From:
Richard Averett [mailto:averettr@norwich.net]
Sent: Sunday, January
20, 2002 8:53 PM
To: Harry
Subject: Re: [GBlist] deep well
submersibles - AC or DC?
Hi Harry,
Yes, a bit far down to have to go...I was hoping to get by
with a pump down about 250-300ft. and a 1/2HP pump (AC or DC) accompanied by 2
large pressurized storage tanks. The AC pump is less expensive, but
being off-grid I'll be needing all the watts I can generate.
Richard
----- Original Message -----
Sent: Sunday, January 20, 2002 6:51
PM
Subject: RE: [GBlist] deep well
submersibles - AC or DC?
500' plus, too much loss with DC, you need to go AC
and create a holding tank - below ground tank if you are in a freeze
area. Discuss this with
Harry Schneider
Group:
We drilled a well on a hill top, and had to go down
500ft to get 3-5gpm. The static level is about 100ft. below the
ground.
The PV system is 3Kw, but there is only one inverter (no
240 Volt).
A DC deep submersible pump runs about $1500. A 1/2
HP Gould (for example) will cost a few hundred dollars and run on 110V -
BUT the system will still require a large holding tank and a 1/4 or 1/2HP
DC pump (??) to pressurize the house.
OR, I can use a 3/4 to 1 HP Gould pump with a step-up
transformer (to produce 230volt) and a BIG storage tank (should I
have a concern about the load on the inverter??).
What is the BEST way to handle
this?
Richard
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