Re: [RE-wrenches] Module grounding requirements

will become the norm, and this issue will become history. My issue was that I was unable to explain why this grounding needed to be done, or to suggest other possible solutions, due to not knowing the wording or the source of the requirement. It is sort of an unusual situation. Cheers, Drake

Re: [RE-wrenches] Module grounding requirements

Hi William, So is there no document we can read that delineates the actual requirements? The standard methods of module bonding that we use don't always seem logical. Engineers on a recent job had similar feelings. Drake At 03:07 PM 1/6/2009, you wrote: Drake: Listed equipment must

Re: [RE-wrenches] Module grounding requirements

. Maybe I'm missing something obvious, but I don't find the requirement spelled out, although do routinely meet it, at least as I understand it. Thanks, Drake At 09:25 AM 1/7/2009, you wrote: Hi Drake, Could you please elaborate? Dick Dick Ratico Solarwind Electric Bradford, VT

Re: [RE-wrenches] Outback VFX input voltage cycling

. The drop in voltage usually indicates that the inverter is trying to pick up the generator. Are you certain that the inverter is not grabbing the generator's AC input, slowing the rpms and then letting it go of the gen feed because the frequency is knocked out of spec? Drake Chamberlin Athens

Re: [RE-wrenches] Integrating with a whole house generator

, with an AC coupled SI setup, the protected loads panel would receive full power from the Sunny Boys when the sun is shining. If you want further details on any of this, please contact me off the list. Drake At 09:42 AM 11/25/2008, you wrote: That is the way to do it. The inverter controls

Re: [RE-wrenches] Integrating with a whole house generator

on the inverter, while batteries are being charged. Drake At 09:46 PM 11/24/2008, you wrote: Friends: I am bidding an installation in which the customer owns a whole house generator. The generator is 30 KVA and we will be installing a 4.5 or 6.0 KVA XW system. Obviously, the inverter

Re: [RE-wrenches] DC Rating of Disconnects

at the inverter side of the disconnect by the other strings that are combined at the inverter. . Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448-7328 740-856-9648 ___ List sponsored by Home Power magazine List Address: RE-wrenches

Re: [RE-wrenches] Shoes

At 10:44 AM 11/24/2008, you wrote: Our neighborhood in Austin, TX was hit by an epic hail storm in the spring. A lot of roofs in the neighborhood were replaced afterwards. How did the solar arrays hold up? Thanks Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448

Re: [RE-wrenches] box fill calcs

At 09:06 AM 11/21/2008, you wrote: I believe you would just determine the size of the J-Box based on the largest sized conduit entering and leaving the box. Code: 314.28 A 12 I It depends on wire size. 314-16 is good for wires up to number 6. Drake Chamberlin Athens Electric OH License

Re: [RE-wrenches] box fill calcs

minimum size box is the smallest box that everything can be stuffed into. Labor saved will usually be more than money spent on a bit more comfortable fit. Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448-7328 740-856-9648

Re: [RE-wrenches] grid-tie inverters generators

been fried by inverters back feeding generators. Drake At 08:28 PM 11/19/2008, you wrote: In a message dated 11/19/2008 5:25:30 PM Pacific Standard Time, [EMAIL PROTECTED] writes: I can imagine, if the inverter tries to sync with the inverter, that the voltage could rise, causing the inverter

Re: [RE-wrenches] Pt valves as overheat control

That makes total sense to me! Pressurized steam has the power to pull a freight train over the Rocky Mountains. It is a force to be reckoned with. Drake At 08:24 PM 11/11/2008, you wrote: Hi Drake, I don't know if you ever watch Myth Busters, but google them and check out the water tank

Re: [RE-wrenches] Pt valves as overheat control

, but still possible with a bit of plumbing. For sure the T/P valve would be needed for whenever the power went down. Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448-7328 740-856-9648 ___ List sponsored by Home Power

Re: [RE-wrenches] hydro coils

At 11:56 AM 11/6/2008, you wrote: is a thermo siphon feed as done in days of old. This is self regulating and worry free Why is the system worry free? Don't the coils thermo siphon into a tank that could overheat? Thanks Drake Chamberlin Athens Electric OH License 44810 CO License 3773

Re: [RE-wrenches] AC coupling

, transfer switches and protective relays will be required. Depending on the grid tie inverter used, this approach should be cost effective compared to using the new Xantrex equipment. Also, the Outback technical support is excellent. Drake At 11:03 AM 11/5/2008, you wrote: Content-class

Re: [RE-wrenches] battery box fan

need to install a relay to run the fan, 12vdc input, that will allow 48 vdc output Any suggestions on what relay to use? Thanks Larry Brown Sun Mountain ___ Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448-7328

[RE-wrenches] Vanner - BP inverter

? The charge control looks like the mercury switch that was used for a charge control on the old Ananda / APT power centers. Does anyone know the rating of the charge controls used on these units? Thanks for your help. Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448

Re: [RE-wrenches] Vanner - BP inverter

At 12:48 PM 9/27/2008, you wrote: Drake: I am curious about the educational benefits of installing an inverter that is long obsolete and never significant in the market. Wouldn't it make more sense to install even an SW or FX inverter? William Miller We already installed a GTFX and a PVP

Re: [RE-wrenches] Vanner - BP inverter

Thank you Tom. I don't know if it is the same or not. It seems like it must be related. Do you know if the charge control was theoretically rated at 60 amps? Drake ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re

[RE-wrenches] generator-pump

though the windings will draw a very high amperage, if available, is it ok if this momentary surge current is not available? Do the generators provide a momentary surge? Why do the pumps start with no problem, even though the numbers don't work out? Thanks Drake Chamberlin Athens Electric OH

[RE-wrenches] Utility disco DC?

Hello Wrenches Can the lockable utility disconnect be DC? Has anyone tried this? On an add on system we found this had been done. It would be convenient to use this method. Thanks, Drake ___ List sponsored by Home Power magazine List

Re: [RE-wrenches] battery reference gen start module

etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448-7328 303-328-5533 ___ List sponsored by Home Power magazine List Address: RE

Re: [RE-wrenches] Gray code area

services will be fed PV. Drake Chamberlin Athens Electric OH License 44810 CO License 3773 740-448-7328 303-328-5533 ___ List sponsored by Home Power magazine RE-wrenches@lists.re-wrenches.org http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re

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