I like what I've read and seen online about the powerflow unit if you want very good frequency control. http://www.powerflow.co.nz/powerflow1.html
If you only need rough voltage limiting control a simple circuit like the one in the file triac.gif may do. http://groups.yahoo.com/group/microhydro/files/ There is also a controller "humingbird" design on this group founder's site. http://www.microhydropower.net/download/manuals.php and a company named Thomson & Howe in BC Canada. Hernando, an active group member is also developing a control unit and may be looking for a test site. It looks like you have enough power to consider a standalone direct AC system. Systems smaller than ~5kW might not be practical in this mode unless it were used just for running lights and heating with no motors of any size. Joe Hartvigsen-Hydro Turgo Runners http://h-hydro.com --- In [EMAIL PROTECTED], "Ross Berry - Energy Source Ltd" <[EMAIL PROTECTED]> wrote: > Hi All > > I am looking for an electronic load controller suitable for a 230v AC 50 Hz > turbine. Typical O/P load of the turbine is about 30A. It is expected that > the controller will monitor the frequency, and dump load into existing hot > water elements. > > Does anyone know of a source for these devices? > > Thanks for your assistance > > Ross Berry > > > [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor --------------------~--> $9.95 domain names from Yahoo!. Register anything. http://us.click.yahoo.com/J8kdrA/y20IAA/yQLSAA/FGYolB/TM --------------------------------------------------------------------~-> Does your company feature in the microhydro business directory at http://microhydropower.net/directory ? If not, please register free of charge and be exposed to the microhydro community world wide! NOTE: The advertisements in this email are added by Yahoogroups who provides us with free email group services. The microhydro-group does not endorse products or support the advertisements in any way. More information on micro hydropower at http://microhydropower.net To unsubscribe: send empty message to [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/microhydro/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
