Re: [RE-wrenches] inverters/ generators and noise

2008-11-20 Thread robert ellison
Probably due to the load of the charger, try changing the rpm a little (higher) if you can. Might help. I have had stoves that wouldn't light under full charger load. They did better at a somewhat higher rmp (frequency) Bob On Thu, Nov 20, 2008 at 12:12 AM, jay peltz [EMAIL PROTECTED] wrote:

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

2008-11-20 Thread Drake Chamberlin
Talking to SMA, during a 4248 Sunny Island installation, w/ AC coupled Sunny Boys and a generator backup via transfer switch, I was told that backfeed to the generator needed to be addressed. The Sunny Island has a setting that will limit backfeed to the generator to a value that can be set

[RE-wrenches] box fill calcs

2008-11-20 Thread Jeff Blick
/pipermail/re-wrenches-re-wrenches.org/attachme nts/20081120/37b612c2/attachment-0001.htm -- Message: 2 Date: Wed, 19 Nov 2008 23:24:59 -0800 From: Kent Osterberg [EMAIL PROTECTED] Subject: Re: [RE-wrenches] utility EDS signage To: RE-wrenches re-wrenches@lists.re

Re: [RE-wrenches] Installer in Yuma, AZ

2008-11-20 Thread Jason Lombard
Hello Jonah, What time frame are you thinking and is this a one time thing or are you thinking on a permanent basis? Jason On Wed, Nov 19, 2008 at 4:53 PM, Jonah Liebes [EMAIL PROTECTED]wrote: Hi Wrenches, We're looking for an installation partner for a project in Yuma, AZ. Please

Re: [RE-wrenches] inverters/ generators and noise

2008-11-20 Thread jay peltz
Hi Bob, Do you have any numbers as to what the HZ where or where you think it worked best? thanks, jay peltz power On Nov 20, 2008, at 3:38 AM, robert ellison wrote: Probably due to the load of the charger, try changing the rpm a little (higher) if you can. Might help. I have had stoves

Re: [RE-wrenches] box fill calcs

2008-11-20 Thread Jason Lombard
01002 ~ -- next part -- An HTML attachment was scrubbed... URL: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachme nts/20081120/37b612c2/attachment-0001.htmhttp://lists.re-wrenches.org/pipermail/re

Re: [RE-wrenches] Fuse Sizing

2008-11-20 Thread William Miller
Jason: Close, but I think you have multiplied by one too many Isc. For an excellent description of the process, see the white paper by Berdner, now on our web site at: http://mpandc.com/resources/resources.html. Remember, you need to be able to put your hands on a no-back-feed

Re: [RE-wrenches] Shoes

2008-11-20 Thread jay peltz
Hi mark, Best I've seen is like Converse Allstars, big wide flat sole. But the felt fishing boot, although really hot, but great idea. What about gluing the felt to a pair of regular shoes? jay peltz power On Nov 20, 2008, at 1:29 PM, Mark Frye wrote: Any thoughts on the best type of shoe

Re: [RE-wrenches] Shoes

2008-11-20 Thread Eric Andrews
We really like Keen's. They flex well when kneeling on your knees, rubber soles and toe box are as forgiving as can be expected on comp roofs, Gortex(we're in snow country and yes I occasionally have to remove snow to install) and a U.S. and Green! Company. Got 2 yrs. out of my last pair. Heck, I

Re: [RE-wrenches] Shoes

2008-11-20 Thread Peter Parrish
Aside from shoes, bring a water hose with a nozzle up on the roof and hose down the roof regularly to keep it (and your shoes) as cool as possible. - Peter Peter T. Parrish, President California Solar Engineering, Inc. 820 Cynthia Ave., Los Angeles, CA 90065 Ph 323-258-8883, Mobile

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

2008-11-20 Thread Kelly Keilwitz, Whidbey Sun Wind
Hi Dana, I¹m hearing that it ³should² be OK, but to CYA install a relay. We just secured a third such system ­ this one with the generator and transfer switch 200 feet away from the inverter. Installing a relay on this one would mean 200 feet of conduit through driveway and landscaping. Or, maybe

Re: [RE-wrenches] inverters/ generators and noise

2008-11-20 Thread robert ellison
Is he running anything unusual? Bob On Thu, Nov 20, 2008 at 12:15 PM, jay peltz [EMAIL PROTECTED] wrote: Hi Bob, Thanks for the details. I'll let you know about how this goes. Customer was being super careful to have it as close to 60hz as possible. Hope this doesn't freak him out!

Re: [RE-wrenches] inverters/ generators and noise

2008-11-20 Thread robert ellison
I expect the gear will tolerate it ok, probably the gen shutting down unexpectedly is more of a headache than the slight bump in frequency. Bob On Thu, Nov 20, 2008 at 5:32 PM, jay peltz [EMAIL PROTECTED] wrote: Hi Bob, Nope standard house, well standard in that is very high end. 60 plasma

Re: [RE-wrenches] PV vs. Genset

2008-11-20 Thread Darryl Thayer
Hi Joel HOMER by NREL does just exactly this type calculation, and is not difficult to use, NREL.GOV Daryl --- On Thu, 11/20/08, Joel Davidson [EMAIL PROTECTED] wrote: From: Joel Davidson [EMAIL PROTECTED] Subject: [RE-wrenches] PV vs. Genset To: re-wrenches@lists.re-wrenches.org Date:

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

2008-11-20 Thread Kurt Albershardt
I'm hearing that it should be OK, but to CYA install a relay. Yes, but... The real answer is to find a genset and inverter which can peacefully coexist. I don't know what sort of regulator topology is used by the gensets we have heard about, but that seems to be the key. Many

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

2008-11-20 Thread Darryl Thayer
hI ALL I have not done what you are talking about, but in different setting the inverter charger would punch holes in the sine wave as the generator ran and the inverter/charger or even a big battery charger ran. By reducing the charging rate the size of the holes in the sine wave would