Re: [RE-wrenches] AC Coupled Re-visited

2009-10-23 Thread toddcory
--- On Tue, 10/20/09, Glenn Burt glenn.b...@glbcc.com wrote: From: Glenn Burt glenn.b...@glbcc.com Subject: Re: [RE-wrenches] AC Coupled Re-visited To: 'RE-wrenches' re-wrenches@lists.re-wrenches.org Date: Tuesday, October 20, 2009, 2:13 PM SMA recently told me

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-22 Thread Phil Undercuffler
:11 -0700 Subject: Re: [RE-wrenches] AC Coupled Re-visited There have been some good advice related to battery bank sizing and a better description of how Sunny Islands work with SunnyBoys, but I am afraid we are getting away from my original post that started this and that was: Since

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-21 Thread Darryl Thayer
: From: Glenn Burt glenn.b...@glbcc.com Subject: Re: [RE-wrenches] AC Coupled Re-visited To: 'RE-wrenches' re-wrenches@lists.re-wrenches.org Date: Tuesday, October 20, 2009, 2:13 PM SMA recently told me that the recommended Ah of the battery bank is related

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-21 Thread Jeff Yago
There have been some good advice related to battery bank sizing and a better description of how Sunny Islands work with SunnyBoys, but I am afraid we are getting away from my original post that started this and that was: Since a battery based inverter has a battery charging section and all

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-21 Thread boB Gudgel
Jeff Yago wrote: There have been some good advice related to battery bank sizing and a better description of how Sunny Islands work with SunnyBoys, but I am afraid we are getting away from my original post that started this and that was: Since a battery based inverter has a battery charging

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-20 Thread Jeff Yago
Wehave completed several totally different AC coupled systems using different inverters, due to large ground mounted arrays that had to be located a great distance from inverter-battery-generator-grid BAS, which are working just fine even with the mis-match of inverter brands. The SunnyBoy seems

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-20 Thread Mick Abraham
Hi, All~ On an AC coupled system as Jeff describes, the battery charge circuitry on the battery based inverter is not even participating. A straight pure sine inverter...with no charger function built in...would also charge the battery if AC coupled to a SunnyBoy with no grid available. The

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-20 Thread Kirpal Khalsa
Greetings..it is my understanding that the Sunny Island coupled with Sunny Boys is able to taper charge in an AC coupled system as the 2 inverters are able to communicate with each other and the Sunny Island alters the frequency input of the Sunny Boys and lowers the total output of the Sunny

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-20 Thread Jeff Yago
it is my understanding that the Sunny Island coupled with Sunny Boys is able to taper charge in an AC coupled system as the 2 inverters are able to communicate with each other and the Sunny Island alters the frequency input of the Sunny Boys and lowers the total output of the Sunny Boys to match

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-20 Thread Phil Undercuffler
, 'RE-wrenches' re-wrenches@lists.re-wrenches.org Date: Tue, 20 Oct 2009 12:37:04 -0700 Subject: Re: [RE-wrenches] AC Coupled Re-visited Glenn: This is correct on the battery bank separation. You don’t split out the battery banks until you reach a “cluster”. For example, one three

Re: [RE-wrenches] AC Coupled Re-visited

2009-10-20 Thread Allan Sindelar
Phil, Good advice. Assuming 48V and a large system, what would you use as a diversion load and controller in this application? As I understand it, this would be a DC diversion load, such as a wind gennie air heater, that would be gradual, resistive, and noncritical for occasional use in this rare