Not sure how shipping would work but may make sense to replace the hydro with a new 12v nominal DC hydro and dumpload combo or a rectifier circuit of some kind..Jerry at www.APMhydro.com(based in southern Oregon) is an excellent resource and may have a solution for you. Best of luck!
Tyrone Houck Oregon Solarworks LLC CCB #204937 LRT #076 541-787-1366 [email protected] On Wed, Apr 23, 2025, 5:13 PM Jay via RE-wrenches < [email protected]> wrote: > It doesn’t work like that. > > A turbine will run at what’s called wild voltage. > > The output of the motor say 230v 50hz would only be 230/50 if the water > was capable of spinning the motor at the correct speed under the load > required which is all but impossible to maintain. > > > Less water pressure means less rpm means less hz and volts. > Diameter of the runner/wheel combined with pressure determines the speed > which determines hz/volts. > > More load slows down the wheel which lowers hz and volts. > > This is why it’s hard to run a AC direct hydro and most are converted to > dc via bridge rectifier which has a number of different options on how to > step it down to the battery voltage. > > And then depending on the voltage range of the motor, you might have to > install dump loads vs a mppt controller for example. As the motor depending > on lots of variables could have a huge voltage range, 2-4x voc vs normal > operating voltage if the motor goes unloaded. > > > Sometimes just with old solar stuff, it might be better to replace with a > newer unit that’s easier to use. > > Hydros are way more complex than PV. > > > > > > > > > On Apr 23, 2025, at 5:42 PM, Jerry Shafer <[email protected]> > wrote: > > > > Wrenches, would a outback E inverter, they are 50 hz 230 vac get a 2512E > Fun times > > On Wed, Apr 23, 2025, 2:44 PM jay via RE-wrenches < > [email protected]> wrote: > >> HI Chris, >> >> It highly unlikely it’s 230v 50 hz exactly as it’s going to be related to >> head and flow and the type of turbine. >> It also is very likely a 3 phase motor. >> Depending on the exact motor and turbine etc, the VOC vs working range >> can be 2X+ >> Hz also changes with rpm which is directly related to flow, height and >> load. >> With Iota’s you generally have to have a dump load to keep the hydro >> working, as again depends on the type of hydro and motor you don’t want to >> let it go VOC as the RPM just goes through the roof which would happen if >> the battery is full and the iota is at its charge set point. >> >> You are going to need more info to be able to figure out which is the >> best way to convert it. >> With more info I can help you get the right parts. >> >> Ive done a number of hydros in Ecuador. >> >> jay >> >> >> >> On Apr 23, 2025, at 1:55 PM, Chris Daum via RE-wrenches < >> [email protected]> wrote: >> >> Hey folks: >> >> I’m trying to assist a friend with a defunct hydro system in Ecuador; >> actually, the hydro system is the only thing working. It’s (I assume >> unrectified) output is 230VAC 50 htz and about ~500W, and they want to >> step it down for charging a 12V battery bank. I’ve tried to get them to >> look at other voltages but a lot of their loads are 12V, and this IS a very >> primitive system. It’s in a rainforest so there is no solar resource to >> speak of. They will be running some 120VAC 60 htz loads (like computers >> and phone chargers) but they already have a bunch of DC led lights in place. >> It gets dark there at 6 pm every night and the forest is so dense, >> solar is not an option. >> >> Do you know of anyone that offers or can manufacture such a converter? This >> is for a school and clinic that gets displaced from weather, equipment >> failures and mercenaries. >> >> Feel free to contact me off list. >> >> Best, >> >> Chris Daum >> Oasis Montana Inc. >> 406-777-4309 or 4321 >> 406-777-4309 fax >> www.oasismontana.com >> _______________________________________________ >> List sponsored by Redwood Alliance >> >> Pay optional member dues here: http://re-wrenches.org >> >> List Address: [email protected] >> >> Change listserver email address & settings: >> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org >> >> There are two list archives for searching. 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When one doesn't work, try the >> other: >> https://www.mail-archive.com/[email protected]/ >> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org >> >> List rules & etiquette: >> http://www.re-wrenches.org/etiquette.htm >> >> Check out or update participant bios: >> http://www.members.re-wrenches.org >> >> _______________________________________________ > List sponsored by Redwood Alliance > > Pay optional member dues here: http://re-wrenches.org > > List Address: [email protected] > > Change listserver email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > There are two list archives for searching. When one doesn't work, try the > other: > https://www.mail-archive.com/[email protected]/ > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > http://www.re-wrenches.org/etiquette.htm > > Check out or update participant bios: > http://www.members.re-wrenches.org > >
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