[RE-wrenches] 48 VDC to 24 VDC converter

2008-08-25 Thread Todd Cory
Wrenches, I am needing a 48 VDC to 24 VDC converter to power one of my home system's tracker. The ones supplied by array technology are suspect. The DC input voltage can go as high as 60 volts when equalizing and the tracker control can take up to around 35 volts or so. I believe I am needing

Re: [RE-wrenches] Power-Save and Power Works

2008-08-25 Thread Darryl Thayer
Hi peter Very interesting question and perhaps the fellow from excel tech could help. First the current limits from an inverter is for total current, both reactive and in phase. But the starting and running currents for motors are from both reactive and in phase current. Is the reactive curre

Re: [RE-wrenches] Power-Save and Power Works

2008-08-25 Thread robert ellison
Thanks, Jay. I really needed something to add to the wish list! Looks like some nice gear. Bob On Mon, Aug 25, 2008 at 11:18 AM, jay peltz <[EMAIL PROTECTED]> wrote: > HI Peter, > > Check out this website. > He makes great stuff. > > http://www.brandelectronics.com/ > > jay > > peltz power > > >

Re: [RE-wrenches] more on roof penetrations

2008-08-25 Thread R. Walters
We used a lag stud assembly from Unirac, with the dreaded L foot at the top of the corrugated ridge, & plenty of pooky under. The driver tool for the stud wasn't very useful, and because the stud was stainless we had a hard time driving it all the way in, without over torquing. I'd use a la

Re: [RE-wrenches] more on roof penetrations

2008-08-25 Thread William Miller
Nik: See link below: http://mpandc.com/practices/Technical_Procedures/Metal_and_membrane/metal_and_membrane_roofs.html William Miller At 12:04 PM 8/25/2008, you wrote: Wrenches, For those of you in the opinion of using standoffs instead of L-feet, what do you do on corrugated metal roofs? I

Re: [RE-wrenches] Lithium batteries.....

2008-08-25 Thread R . Walters
I agree with Mick there about using lead acid, that's just a few pounds for a bit of trouble. On the other hand if you're going to play with Li on solar, you might as well start small in case something cooks. Keep us posted, I was wondering when one of us would try Li+. Ray In term

[RE-wrenches] more on roof penetrations

2008-08-25 Thread Nicholas Ponzio
Wrenches, For those of you in the opinion of using standoffs instead of L-feet, what do you do on corrugated metal roofs? I'm seeing a lot of these in both residential and commercial buildings. Thanks in advance for any suggestions. -Nik ___ List spons

Re: [RE-wrenches] Power-Save and Power Works

2008-08-25 Thread Sky Sims
Dan, Glad you brought up reactive vs real power. I was under the impression that most residential meters measured apparent power not real power. Based on your description: If the utility meter measures apparent power the power save will likely reduce the customers bills by ensuring that the app

Re: [RE-wrenches] Power-Save and Power Works

2008-08-25 Thread Carl Adams
Here is another well respected monitoring device which will handle the 240V loads. http://www.brultech.com/index.html Carl On Mon, Aug 25, 2008 at 11:18 AM, jay peltz <[EMAIL PROTECTED]> wrote: > HI Peter, > > Check out this website. > He makes great stuff. > > http://www.brandelectronics.com/ >

Re: [RE-wrenches] Power-Save and Power Works

2008-08-25 Thread jay peltz
HI Peter, Check out this website. He makes great stuff. http://www.brandelectronics.com/ jay peltz power ___ List sponsored by Home Power magazine RE-wrenches@lists.re-wrenches.org http://lists.re-wrenches.org/listinfo.cgi/re-wrenches-re-wrenches.o

Re: [RE-wrenches] Power-Save and Power Works

2008-08-25 Thread Peter Parrish
This is a pretty important measurement. I was hoping that the Power-Save was eliminating the out-of-phase current, leaving only the in-phase component. But if it throttling down the in-phase current as well, that's another story. It would be nice to know the Power Factor in both cases, which would