Re: [RE-wrenches] TPM Search

2024-03-08 Thread Allan Sindelar via RE-wrenches
In my experience, trackers have never made sense in off grid residential applications. In general terms, an expensive dual-axis Wattsun tracker offers a ~35% potential increase in daily solar gain around the summer solstice, and only a 10-15% gain in winter, due to seasonal sunpath variation. Any

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Sam Haraldson via RE-wrenches
Adding in my vote for MT Solar. Quality product, quality customer service. I saw someone mention Wattsun as well but their product is trackers not simply pole mounts. They too have superb customer service but not for static racking. - Sam OnSite Energy, Inc. Bozeman, MT

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Chris Daum via RE-wrenches
Hear hear! www.mtsolar.us Great folks with whom to do business. Chris Daum Oasis Montana Inc. 406-777-4309 or 4321 406-777-4309 fax www.oasismontana.com From: RE-wrenches On Behalf Of Dave Tedeyan via RE-wrenches Sent: Friday,

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Ray Walters via RE-wrenches
Here's another mount at the edge of failure, from the same system. Hardware is tight.  Like many, I had lots of love for good ol' fashion bottom mounting vs top mount, until this happened about 5 years ago. This is how we learn. On 3/8/2024 5:15 PM, Ray Walters via RE-wrenches wrote: I've

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Ray Walters via RE-wrenches
I've had several modules pull off of bottom mount racking in high winds, but never top mount racking.  Newer modules have much thinner frames, but are much more surface area than the old days. So to answer Kent's question: Ray Walters Remote Solar On 3/8/2024 3:50 PM, Kent via RE-wrenches

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Roy Butler via RE-wrenches
MT Solar is very much in business. Anyone going to the NABCEP Conference later this month? They're at booth #34. Hope to see some of you there, I'll be around booth 38 and registration most of the time. Roy Butler Four Winds Renewable Energy, LLC 8902 Route 46, Arkport, NY 14807 607-324-9747

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Dave Angelini Offgrid Solar via RE-wrenches
Spendy for the right client, Jeff and Kyle still support/sell the best trackers out there. https://www.wattsun.com/ Dave Angelini Offgrid Solar "we go where powerlines don't" [2]https://offgridsolar1.com/ [3] [2] e-mail offgridso...@sti.net text 209 813 0060 On 2024-03-08 3:27 pm, Dave

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Dave Tedeyan via RE-wrenches
Another one out there that is worth looking at is MT Solar. Cheers, Dave On Fri, Mar 8, 2024, 5:51 PM Kent via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Jeremy, > > I think the Solar RacksWorks TPMs are virtually identical to the DPW TPMs. > My go to TPM is General Specialties >

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Kent via RE-wrenches
Jeremy, I think the Solar RacksWorks TPMs are virtually identical to the DPW TPMs. My go to TPM is General Specialties ; They are a solid design and I think they are easier to assemble. They also have UL listed TPMs but they have top mounting clamps,

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Bryan Norkunas via RE-wrenches
Try Solar Rack Works [Description: Description: PV-Cables_Logo_Transparent_Bkgnd_140x140] Bryan Norkunas PV-Cables Inc. 989 Milton Ave Ste 1D Ferndale CA 95536 (707) 923-3000 office www.pv-cables.com [cid:image002.jpg@01DA17CF.578FC540] Please print only if

Re: [RE-wrenches] TPM Search

2024-03-08 Thread Nathan J. Stumpff via RE-wrenches
It’s been a few years since I bought these but it looks like they are still going, I always thought it was a good product when I bought in the past: https://www.mtsolar.us/ Cheers, -Nathan On Fri, Mar 8, 2024 at 2:31 PM Jeremy Rodriguez via RE-wrenches < re-wrenches@lists.re-wrenches.org>

Re: [RE-wrenches] TPM Search

2024-03-08 Thread William Miller via RE-wrenches
https://solarrackworks.com/top-of-pole-racks.html Jeff Randall has been in the business for years and he is as solid as they come. He started DPW. William Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 www.millersolar.com CA Lic. 773985 -Original Message- From:

[RE-wrenches] TPM Search

2024-03-08 Thread Jeremy Rodriguez via RE-wrenches
With news that PLP has dropped the TPM line, what are you all recommending for a good mount for up to 8 modules , 400 w range. I looked in the archives, but no luck. I thought there was someone formerly at DPW that was making them. Jeremy Rodriguez Solar Installation / Design All Solar, Inc.

Re: [RE-wrenches] Clamping CTs Around Live Conductors - White Paper References and/or Anecdotal Information Requested

2024-03-08 Thread Kent via RE-wrenches
Sam, As long as the CT leads are properly terminated, opening or closing the clamp-on CT core is nothing different that what a clamp-on ammeter is doing. Make a mistake and pull the leads out of the multimeter and you may have a high voltage arc. There are other problems with using a

Re: [RE-wrenches] Clamping CTs Around Live Conductors - White Paper References and/or Anecdotal Information Requested

2024-03-08 Thread Glenn Burt via RE-wrenches
The answer depends on the type of CT.If it has an internal resistor which converts the measuerment to a voltage, it is okay to clamp on live.If it is purely a CT that outputs a different current to be measured, then they can create an inductive kick ant shock and destroy.-GlennSent from my

Re: [RE-wrenches] Clamping CTs Around Live Conductors - White Paper References and/or Anecdotal Information Requested

2024-03-08 Thread Blake Gleason via RE-wrenches
Hi Sam, The "secondary" of the CT is the side connected to the meter. The primary is the side that gets wrapped around the conductor or busbar on which you are measuring current. So yes, make sure that the secondary is connected to its "burden" (the meter, or a shorting block) before inducing

Re: [RE-wrenches] Clamping CTs Around Live Conductors - White Paper References and/or Anecdotal Information Requested

2024-03-08 Thread Darryl Thayer via RE-wrenches
I have done it many times. YES terminate the secondary first. As an older CT is a step up the voltage transformer and can generate thousands of volts. Many of new type Cats are low voltage output and are safe to work with. On Fri, Mar 8, 2024, 10:46 AM Jerry Shafer via RE-wrenches <

Re: [RE-wrenches] Clamping CTs Around Live Conductors - White Paper References and/or Anecdotal Information Requested

2024-03-08 Thread Jerry Shafer via RE-wrenches
Wrenches Per manufacturer recommended installation procedures you must have the CT terminated befor the load connection can made and yes this can damage the CT. Depending on what you are connecting to there may also be a "short pin" to prevent component damage so keep that in mind when

[RE-wrenches] Clamping CTs Around Live Conductors - White Paper References and/or Anecdotal Information Requested

2024-03-08 Thread Sam Haraldson via RE-wrenches
Dear Wrenches, I'm trying to determine whether or not it is acceptable to clamp monitoring CTs around hot conductors. For this question please assume the CT wires are landed in their proper terminals and that proper PPE/safety protocol is employed. The monitored currents in question are