Re: [RE-wrenches] DC generators

2013-03-07 Thread Larry Crutcher, Starlight Solar Power Systems
Jay, I would think these very important features would be listed in their data sheet but they are not. Their website does not offer any installation or operation manuals for download. If you have any evidence to this I would like to review it. In my experience, battery charging is a highly mi

[RE-wrenches] AC Coupled Magnum Issue

2013-03-07 Thread Drake
Hello Wrenches, I had an unexpected glitch in AC coupling a Magnum 4024 PAE inverter. The system utilizes AGM batteries, which (according to Concorde tech support) have a very strict upper voltage limit. The relay used to stop the current input from the direct grid tie inverter, when batter

Re: [RE-wrenches] AC Coupled Magnum Issue

2013-03-07 Thread Larry Crutcher, Starlight Solar Power Systems
Drake, Charging an AGM battery does not have to occur at the maximum charge voltage allowable; you can charge at a lower voltage for longer periods of time and still achieve 100% SoC. Since you have grid power to work with, slow down the charge cycle. Assuming you have a late model ME-RC and v

Re: [RE-wrenches] AC Coupled Magnum Issue

2013-03-07 Thread Allan Sindelar
Drake, Magnum's approach does not use disconnecting the AC output from the GT inverter as a fail-safe method of preventing battery overcharge. Rather, the Magnum documents I have use a DC diversion controller and diversion load for this purpose. Their method

Re: [RE-wrenches] AC Coupled Magnum Issue

2013-03-07 Thread Larry Crutcher, Starlight Solar Power Systems
Meant to say, "You should tweak #3 & #4 above..." Drake, Charging an AGM battery does not have to occur at the maximum charge voltage allowable; you can charge at a lower voltage for longer periods of time and still achieve 100% SoC. Since you have grid power to work with, slow down the charg

Re: [RE-wrenches] AC Coupled Magnum Issue

2013-03-07 Thread Allan Sindelar
OK, a bit more: The line diagram I was referencing was dated 5/1/2010. A later diagram from a Powerpoint given at last year's NABCEP CE conference shows a "MagNet" AC diversion controller. It allows AC diversion loads and three-stage charging. No mention of temp c

Re: [RE-wrenches] AC Coupled Magnum Issue

2013-03-07 Thread Brian Faley
Hi Allan, In answer to your question: Yes, we're developing an AC side 4kW diversion mode controller which allows temperature compensated three stage charging for AC coupled inverter applications. It is currently in beta site testing. Brian Faley Chief Engineer Magnum Energy Inc. 2211

Re: [RE-wrenches] AC Coupled Magnum Issue

2013-03-07 Thread Larry Crutcher, Starlight Solar Power Systems
ANDyou are still working on that stand-alone, programable, temperature compensated battery chargerright??? Thank you, Larry Crutcher Starlight Solar Power Systems On Mar 7, 2013, at 4:07 PM, Brian Faley wrote: Hi Allan, In answer to your question: Yes, we’re developing an AC side 4k

Re: [RE-wrenches] AC Coupled Magnum Issue

2013-03-07 Thread Brian Faley
Yes Larry. We are. Brian Faley Chief Engineer Magnum Energy Inc. 2211 West Casino Rd Everett, WA 98204 Ph 425-353-8833 www.magnumenergy.com From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Larry Crutcher,Starlight So