Re: [RE-wrenches] Rapid Shutdown Compliance

2020-04-29 Thread Ray
ained home owner breaks their neck. Ray Walters Remote Solar 303 505-8760 On 4/29/20 10:17 AM, drake.chamber...@redwoodalliance.org wrote: Clearly, rapid shutdown increases cost and reduces reliability. Given the excellent safety record of PV, prior to rapid shutdown being required, it is u

Re: [RE-wrenches] Rapid Shutdown Compliance

2020-04-30 Thread Ray
y for prime time.   Having some basic exemptions for small, lower voltage systems off grid is not unreasonable. Ray Walters Remote Solar 303 505-8760 On 4/30/20 2:33 AM, Jerry Shafer wrote: Wrenches We are taking two very different issues and mixing them together. RSD and Arc-fault are different

Re: [RE-wrenches] Rapid Shutdown Compliance

2020-05-06 Thread Ray
lower voltage off grid work in almost a decade. Once again, MLPE has its place, (larger systems, multiple subarrays, higher voltage) but we should have sensible exemptions as have been mentioned already.  We are endangering ourselves and our employees needlessly, to comply with 690.12. Ray Wa

Re: [RE-wrenches] Site Groundskeeping

2020-05-13 Thread Ray
vel projectiles sent flying into the glass. Ray Walters Remote Solar 303 505-8760 On 5/13/20 9:28 PM, Jay wrote: Have you thought of sheep? Goats can be tough as they like to eat wire and climb on the panels. But if the modules are off the ground high enough might work. Jay Peltz power. On M

Re: [RE-wrenches] Outback FM100

2020-05-15 Thread Ray
ven on the AC side of the system end up tripping the charge controller off.  In the case of the FM100, the GFCI is accomplished with a fuse, which are hard to come by locally. Ray Walters Remote Solar 303 505-8760 On 5/15/20 1:48 AM, William Miller wrote: Friends: I have occasion to try the FM1

Re: [RE-wrenches] Outback FM100

2020-05-15 Thread Ray
vdc rated breakers for other circuits in the same box is an issue.  All the wiring is THHN rated at 600 vdc.   This sounds like a solution looking for a problem. Ray Walters Remote Solar 303 505-8760 On 5/15/20 12:48 PM, William Miller wrote: Jay: On the FM100 landing page <http://out

Re: [RE-wrenches] Outback FM100

2020-05-17 Thread Ray
systems with the best equipment we can get for that particular situation. Ray Walters Remote Solar 303 505-8760 On 5/17/20 7:38 AM, Mac Lewis wrote: Hi Ray, I'm curious, do you avoid have the FM100 on the Hub to avoid clients changing the programming or have you seen some other issues? 

Re: [RE-wrenches] Outback FM100

2020-05-18 Thread Ray
I've had them shut inverters down for both the brands you mentioned.  The comm failures that took out controllers were the Midnite "Follow Me" setup. Ray Walters Remote Solar 303 505-8760 On 5/17/20 9:46 PM, Jay wrote: Hi Ray In my experience I’ve had plenty of hub and

Re: [RE-wrenches] Programs for one line DWGs.

2020-05-19 Thread Ray
I'll throw another vote for Visio.  It has a very comprehensive electrical symbols library, and is much easier to use than AutoCad LT.  But that's just for doing 3 line diagrams, not complex parts. Ray Walters Remote Solar 303 505-8760 On 5/18/20 9:03 PM, Mac Lewis wrote: I like Aut

Re: [RE-wrenches] How much Li battery?

2020-05-23 Thread Ray
utput ratings that should at least be matched to the inverter rating. If you WERE going to under size the battery, then you should keep it safe by reducing the size of the inverter battery breaker as well.   I know this "micro battery for GTB" is becoming a trend, but it doesn't m

Re: [RE-wrenches] Enphase intermittent breaker trippjng

2020-06-01 Thread Ray
Is it at all weather related?  Rain, or high humidity?  High temperatures?  Do you have any indication what time of day it trips off at? Ray Walters Remote Solar 303 505-8760 On 6/1/20 10:23 AM, Jason Szumlanski wrote: Well, that didn't resolve it. The main breaker and a branch ci

Re: [RE-wrenches] SW4024

2020-06-05 Thread Ray
I don't know about a Bolt, but we've successfully charged a customer's Chevy Volt from an SW inverter for several years. Ray Walters Remote Solar 303 505-8760 On 6/5/20 5:07 PM, RE Ellison wrote: Has anybody ever tried to charge a Chevy bolt with an SW 4024 ? I don’t know

Re: [RE-wrenches] Charging a Bolt with an SW

2020-06-08 Thread Ray
Also have a customer with a Leaf that can charge from a dual GVFX system.  He uses the 120 vac charger.  Lower charge rates are more efficient both for the car's battery and the solar/ battery system, so I recommend sticking to the 120 vac chargers if possible. Ray Walters Remote Sola

Re: [RE-wrenches] Charging a Bolt with an SW

2020-06-08 Thread Ray
charge rate will be better. Ray Walters Remote Solar 303 505-8760 On 6/8/20 3:54 PM, Chris Mason wrote: >Lower charge rates are more efficient both for the car's battery and the solar/ battery system I don't get that. Our house battery is full at about 11 a.m., so we have about four ho

Re: [RE-wrenches] FLA question

2020-06-11 Thread Ray
n equivalent HUP is. Also beware, many customers get fooled by Rolls' amp hour specs. They list 100 hr discharge rates, so the Rolls can look amazing on paper.  However, the customer really needs to be designing and comparing at the 20 hr rate.  I've made that same mistake, and was quite

Re: [RE-wrenches] White wire for DC- after ground fault breaker

2020-06-15 Thread Ray
nctionally grounded conductor". Ray Walters Remote Solar 303 505-8760 On 6/15/20 3:24 PM, William Miller wrote: Wrenches: Well now that the NFPA has acknowledged that GFDI protected circuits do not solidly ground the “grounded“ conductor, and we know they can’t be white in color, it begs th

Re: [RE-wrenches] Programs for one line DWGs.

2020-06-21 Thread Ray
2nd the Visio.  Very easy to use, compared to the learning curves on some of the other CAD systems. Ray Walters Remote Solar 303 505-8760 On 6/21/20 4:00 PM, Gary Willett wrote: I've used Visio (MicroSoft) for years and it works well for 1-line and 2-line drawings. Can also export t

Re: [RE-wrenches] Label Durability

2020-06-27 Thread Ray
Sharpie fades pretty fast in the sun (1 year?).  Paint pen would do better, but can be messy. Ray Walters Remote Solar 303 505-8760 On 6/27/20 5:06 PM, Jesse Dahl wrote: Did you use a sharpie on the box? I wonder how a sharpie or PICA marker would hold up for 10 years. It’s an awesome test

Re: [RE-wrenches] Wind Turbine

2020-07-09 Thread Ray
Does anyone have experience with  APRS's WT10 turbine?  They've been around for along time, but I've not tried that turbine. Ray Walters Remote Solar 303 505-8760 On 7/9/20 8:04 AM, John Blittersdorf wrote: Chris,  Thanks for the reality check on Kohilo.  I just tried to get

Re: [RE-wrenches] FXR , Mate 3, AGS and Must Run

2017-02-12 Thread Ray
s going to be much more effective than any auto start setup. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectrician, Colorado 303 505-8760 On 2/12/17 11:12 AM, Lou Russo wrote: Aloha Wrenches, I have ste

[RE-wrenches] Alpha Solaris 3500 xp

2017-03-11 Thread Ray
on a great deal on this thing can contact me off list. As always, thanks in advance for all of your knowledgeable replies, -- R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectrician, Colora

Re: [RE-wrenches] Tesla 2.0

2017-03-11 Thread Ray
hink it would really depend on the application. Anyone that is using Li+ (like Larry Crutcher) want to chime in on sizing of Li+ battery banks compared to lead acid? Downsizing is the only way we could possibly start making these affordable. R. Ray Walters Chief Technical Officer, Rem

Re: [RE-wrenches] Sunny Island no Longer Supports TLs - How about New Series?

2017-03-25 Thread Ray
Not to muddy the waters, but how does the SMA system deal with 690.12 Rapid Shutdown requirements in OG and GTB arrangements? 690.12 has been killing battery based projects left and right here in Colorado. Thanks, R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering

Re: [RE-wrenches] Sunny Island no Longer Supports TLs - How about New Series?

2017-03-26 Thread Ray
y neighbor) Firefighters will probably only ever be on site to strap our poor customer to a back board after they fall off the roof in the snow trying to reset their new 690.12 compliant system. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified,

Re: [RE-wrenches] High End battery

2017-03-27 Thread Ray
work. My guess is this would be subject to OSHA rules for hazardous, enclosed spaces as well. First plan to relocate the batteries, then lets have a discussion on what brand is going to be used. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certi

Re: [RE-wrenches] Sunpower micros and mysterious outages

2017-03-28 Thread Ray
An IR camera may be helpful. FIir has some really affordable models now, I have the TG 167 which is plenty of resolution for electrical. They can find problems in load centers really fast; we found an overloaded neutral the other day we would not have noticed otherwise. R. Ray Walters Chief

Re: [RE-wrenches] NM Cable temp rating, ampacity, application

2017-04-04 Thread Ray
onductors are from the utility to the main disconnect (service equipment), while feeders are all the conductors after the Service equipment. I think the Old school guy might have won that one. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certif

Re: [RE-wrenches] Need Sunny Webbox - Contact offlist

2017-04-13 Thread Ray
C coupled setups. Sorry I don't have a Webbox. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectrician, Colorado 303 505-8760 On 4/13/17 5:20 PM, Jeff Clearwater wrote: Hi Folks, Well I've design

Re: [RE-wrenches] Disposal of large scale PV installation?

2017-04-20 Thread Ray
I don't have answers, but its definitely something we need to be thinking about as an industry. The better quality modules ( like Sunpower) might make usable power for another 50 years. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Cert

Re: [RE-wrenches] Failed L16 with perfect Sp.Gr.

2017-04-26 Thread Ray
ht 2 to 4 years. Rated at 1000 cycles to 80% DOD, these Trojan RE batteries should do much better than that. I have never been impressed with L16s anyway. John, my experience has also been: higher Capacity = more premature cell failures. R. Ray Walters Chief Technical Officer, RemoteSo

Re: [RE-wrenches] Failed L16 with perfect Sp.Gr.

2017-04-27 Thread Ray
That was my point: voltage is not very helpful on the 2 v L16s, as all 3 cells are internally paralleled. With the Flir I was able to see all the dead cells in the set in seconds. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004

Re: [RE-wrenches] Sta-Rite Submersible Well Pump

2017-04-27 Thread Ray
surges are very 20th century, and we have a responsibility to bring off grid into the 21st century. Efficiency isn't much different, and frankly just isn't that important unless you are irrigating. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 For

Re: [RE-wrenches] Sta-Rite Submersible Well Pump

2017-04-27 Thread Ray
We've used the Grundfos SQE and the MQ lines of CP pumps and never had problems. I've only seen them keep running, if there was a leak. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectrician, Co

Re: [RE-wrenches] Outback VFXR3648 failures

2017-05-03 Thread Ray
en allowed to grid tie in the 90s, so I consider our current state of the art to be in total disarray: shameful over promotion coupled with dangerous under performance. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Li

[RE-wrenches] Battery Transport

2017-05-22 Thread Ray
en we need something over the 10,000 lb gross vehicle limit, like a 1 ton truck. I'm hoping that would be adequate. Thanks in advance for your advice, -- R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectr

Re: [RE-wrenches] Fuse for 48 V DC

2017-05-24 Thread Ray
n/bussmann/electrical/products/electronic_smalldimension/elx_1_4_x_1-1_4_/abc.brands.cooper_bussmann.html R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectrician, Colorado 303 505-8760 On 5/24/17 12:18

Re: [RE-wrenches] Generator choice for Sunny Island

2017-07-24 Thread Ray
gh to take voltage readings to double check the SOC. I found systems that the SI thought it was close to full, but the batteries were actually only at 60%. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectr

Re: [RE-wrenches] Battery load tester purchase advice?

2017-08-07 Thread Ray
/variac-variable-ac-ps05kva.html?otaid=gpl&gclid=EAIaIQobChMI56mLvLDF1QIVBIC9Ch1NEQhqEAkYAiABEgKEgfD_BwE Every mad scientist should have one. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectrician, Colo

Re: [RE-wrenches] Wanted: AC centrifugal pump with soft start

2017-08-11 Thread Ray
We've used the Grundfos MQ series for years for exactly that purpose. Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectrician, Colorado 303 505-8760 On 8/11/17 2:14 PM, Dave Angelini Offgrid Solar wrote: Quite happy here

Re: [RE-wrenches] Dusty off -grid conditions

2017-09-01 Thread Ray
I 2nd the linseed oil idea.  I had an adobe floor (dirt) with linseed oil that made it a nice floor. R. Ray Walters Chief Technical Officer, RemoteSolar.com BS Mech Engineering, 1988 Former NABCEP Certified, 2004-2016 Licensed Master ELectrician, Colorado 303 505-8760 On 9/1/17 2:42 PM, Dave

Re: [RE-wrenches] EMP - Faraday Cages

2017-09-08 Thread Ray
getting freaked out again about the North Koreans, or whomever the latest boogey man is.  You can always find something to be afraid of, and you can always find something to be thankful for.  Half of the off grid solar business is electricity, the other half is psychology. Ray Walters Remote

Re: [RE-wrenches] PV to EV charging

2017-09-11 Thread Ray
EVs it might be harder to do though.  It might be easiest to go AC from the PV and use the EVs regular AC charging input if it has a lower power option. Ray Walters Remote Solar On 9/11/17 2:17 PM, Marco Mangelsdorf wrote: Aloha all. Does anyone know of a readily available product that

Re: [RE-wrenches] Hurricane damage to solar arrays

2017-09-12 Thread Ray
pull off again, and went to triple rails.  I think racking in Miami done to hurricane codes is probably not going to make the news. Ray Walters Remote Solar On 9/12/17 1:34 PM, toddc...@finestplanet.com wrote: http://edition.cnn.com/2017/09/11/americas/caribbean-reacts-hurricane-irma/index

Re: [RE-wrenches] Hurricane damage to solar arrays

2017-09-15 Thread Ray
What was the pressure rating for the modules that got sucked off the racks?  Also, is it possible that flying debris caused some of the random location module failures? Ray Walters Remote Solar On 9/14/17 1:53 PM, Jason Szumlanski wrote: More early anecdotal data... We are finding NO

Re: [RE-wrenches] Hurricanes Forces

2017-09-16 Thread Ray
the reality is extremely dynamic. Ray Walters Remote Solar On 9/16/17 8:15 AM, Jason Szumlanski wrote: I generally agree on all points. I'd love to use three rails on all systems, but there is an economic factor, and as Tom mentions, a third rail doesn't necessarily stop glass being suc

Re: [RE-wrenches] definition of "areas of physical damage"

2017-09-18 Thread Ray
e years, and pulls the conduit out of the MA, or breaks the MA.  Again, Schedule 80 doesn't solve that problem either.  I think better glue, stronger fittings, and expansion couplings are needed as well as Sch 80 to insure long term protection. Ray Walters Remote Solar On 9/18/17 9:53 AM

Re: [RE-wrenches] BP warrantee saga continues....

2017-10-02 Thread Ray
27;ve ever looked at. I advise they all be replaced, they're that bad.  A large multinational company like BP should back up the warranty without legal action needed.  When we sold these modules, the BP name lent assurances that they would back up their products. Ray On 10/2/17 4:03 AM,

Re: [RE-wrenches] MPPT on a MX60

2017-10-02 Thread Ray
ld be a loose connection, so a thermal imaging camera is great to "see" those bad connections.  That should be a good system, I don't know of any problems with the Shell modules from that time period. Ray Remote Solar On 10/2/17 9:21 AM, Steve Bell wrote: Hi Bill, The origi

[RE-wrenches] Fwd: Re: sizing up equipment ground per NEC 690.45

2017-10-17 Thread Ray
cuit/. You are held to 250.122(B) and you have to increase the EGC proportionally with the increased conductor sizing. Ray Walters Remote Solar On 10/17/17 12:34 PM, Dave Tedeyan wrote: Hi August, We have understood that exception to apply only to the DC side. The inverter output circuit

Re: [RE-wrenches] Second Life Batteries

2017-10-19 Thread Ray
Funny because none of the Lead acid batteries we've used off grid all these years are UL listed. Ray Walters On 10/19/17 3:28 PM, Dave Angelini Offgrid Solar wrote: They need a bit more than UL to move them around and for fire if a home/commercial also.. --Dave Reliability & Cert

Re: [RE-wrenches] System Monitor for HV Off Grid System?

2017-10-20 Thread Ray
I actually saw one of those once, they did a presentation. Seemed like a good idea, but they never had a good answer on charge controllers and other equipment.  The E meter can work at higher voltages.  I used them with 144 vdc battery banks before. Ray Walters On 10/20/17 3:48 PM, Sindelar

Re: [RE-wrenches] adjustable back legs for mounts

2017-10-24 Thread Ray
We've also made them from Unistrut nested into square tubing. Drill a hole close to the top of the square tube and use a 3/8" bolt and strut nut.  Either 1-3/4" or 2" thin wall Square tube works. Ray Walters On 10/24/17 7:57 PM, Allan Sindelar wrote: Try Jeff

Re: [RE-wrenches] protecting wire below 8' w/awning array

2020-07-18 Thread Ray
t;  Finally, if the conductors are within 8 ft of the ground, then usually you can just put a plastic shield, or expanded aluminum lathe on the bottom of the rails to protect the conductors. Wire Shielding ground Mount I pinched this pic from Miller Solar, one of our long time wrenches here. Ray

Re: [RE-wrenches] Tesla Powerwall 2.0 - Experience?

2020-07-19 Thread Ray
ility.  They can lose water, heat, refrigeration, and communications in an outage.  I'm just tired of  folks dabbling in off grid, and not taking it seriously.  Why in the world would someone even consider using a product that its own manufacturer says should not be used off grid? R

Re: [RE-wrenches] protecting wire below 8' w/awning array

2020-07-20 Thread Ray
If its attached to the building then its subject to 690.12.  Is he also making you comply with rapid shutdown? Ray Walters Remote Solar 303 505-8760 On 7/20/20 2:01 PM, Kirk Herander wrote: Hey Dave, Well my building inspector is just being a dick about the "need" for a fence surro

Re: [RE-wrenches] Tesla Powerwall 2.0 - Experience?/Generator charging

2020-07-21 Thread Ray
That's going to be long extension cord for most off grid projects... Ray Walters Remote Solar 303 505-8760 On 7/21/20 12:11 PM, Matt Partymiller wrote: Jay, The Tesla Gateway has a 12v input terminal for boot up.  To startup my off grid Powerwall we wired in a 12V power supply t

Re: [RE-wrenches] Tesla Powerwall Emergency Stop Button

2020-07-22 Thread Ray
Has anyone looked at NEC 2020?  Articles 480.7(B) /Storage Batteries/ and 706.15 (A)/Energy Storage Systems/ both require an external emergency disconnect for the batteries. That "may" be what the AHJ is thinking?  Off grid design never got to be so much fun Ray Walters Remote

Re: [RE-wrenches] dual rated 600/1000v cable for HV battery application

2020-08-01 Thread Ray
://www.awcwire.com/productspec.aspx?id=dlo Ray Walters Remote Solar 303 505-8760 On 8/1/20 7:09 AM, Kirk Herander wrote: I need to spec battery cable for a nominal 850 vdc LFP bank. Several brands of power cable list their rating at a dual 600/1000v. it is my understanding that to be listed in this manner, the

Re: [RE-wrenches] Small scale Maximisers/Optimisers.....

2020-08-02 Thread Ray
I agree, I would do one or the other.  The main point to using a LCB is so you don't have to have a battery.  A battery system is going to be much more versatile, and could allow an LED light, or even a small inverter. Ray Walters Remote Solar 303 505-8760 On 8/2/20 6:18 PM, Jay wrote

Re: [RE-wrenches] Flir One for Smart Phones

2020-08-04 Thread Ray
roof. On a cold night with a vaulted ceiling is the only time it "might" work. Ray Walters Remote Solar 303 505-8760 On 8/4/20 12:19 PM, Solar Energy Solutions wrote: We have spent a lifetime hoping, searching, dreaming of an easy and affordable means of finding roof rafters.  Has anyon

Re: [RE-wrenches] dual rated 600/1000v cable for HV battery application

2020-08-04 Thread Ray
I've used it a few times for battery and inverter cables and it works just fine.  It just has a thicker jacket so when you heat shrink it at the lugs, it looks funny.  Not a serious problem, just get a higher ratio heat shrink like 3 to 1, and it should be fine. Ray Walters Remote Sola

Re: [RE-wrenches] Best Battery

2020-08-09 Thread Ray
LBCO.  Until Schneider releases a firmware update, they are not even being considered for future projects. Ray Walters Remote Solar 303 505-8760 On 8/9/20 5:30 PM, Jerry Shafer wrote: I have outback FX systems operating for years now, the lab l had used FX's and midnite systems, it does nee

Re: [RE-wrenches] Best Battery

2020-08-10 Thread Ray
rters. Those had 100% customer dissatisfaction.  They have yet to regain my support, and now after this latest experience, I have to refuse to even service systems with Schneider equipment. Ray Walters Remote Solar 303 505-8760 On 8/10/20 8:03 AM, Dave Angelini Offgrid Solar wrote: Hey Ray,

Re: [RE-wrenches] Best Battery

2020-08-10 Thread Ray
volts, so I didn't realize any Li+ batteries could work correctly that low. Ray Walters Remote Solar 303 505-8760 On 8/10/20 2:24 PM, Dave Angelini Offgrid Solar wrote: I have forwarded this to Schneider. They gave me a case number in 30 minutes.  I disagree that "all" Li

Re: [RE-wrenches] Best Battery

2020-08-10 Thread Ray
l the parameters in a Windows/ easy to navigate screen with tech manuals all accessible right in the app's help menu........ Ray Walters Remote Solar 303 505-8760 On 8/10/20 3:40 PM, Dave Angelini Offgrid Solar wrote: Hi Ray, I guess it is not my last :)  I attached AES battery. Fortress i

Re: [RE-wrenches] Ampacity Ratings for Different Conductors

2020-08-12 Thread Ray
cables just get warm to the touch in golf carts. Ray Walters Remote Solar 303 505-8760 On 8/11/20 6:04 PM, Kent Osterberg wrote: Peter, The 210-amp rating is probably for a 105°C insulation temperature in free air. For comparison, #2 THHN (90°C) copper in free air is rated for 190 amps. Not sure

Re: [RE-wrenches] Ampacity Ratings for Different Conductors

2020-08-12 Thread Ray
ed on the NEC chart such as RHH, RHW, THHN, THWN etc. Ray Walters Remote Solar 303 505-8760 On 8/12/20 1:25 PM, Ray wrote: Also, welding and automotive cables use totally different rating systems like SAE, that are much more liberal than NEC. For instance, golf carts are traditionally wired

Re: [RE-wrenches] shunt trip breaker with outdoor disconnect offgrid

2020-08-13 Thread Ray
What voltage LG battery?  Midnight has large (100, 175, 250 A) DC shunt trip breakers that are 125 v rated.  They also have 15 and 20 A 600 V rated remote trip breakers. Ray Walters Remote Solar 303 505-8760 On 8/13/20 1:06 PM, Kirk Herander, VT Solar, LLC wrote: You would need a shunt trip

Re: [RE-wrenches] Working with SBS 6.0 and LG Chem batteries

2020-08-16 Thread Ray
(SMA fired all their off grid team) and is better suited for the design.  The only reason I could think to use the Sunny Island would be if it was a 208, 3 phase setup. Ray Walters Remote Solar 303 505-8760 On 8/15/20 8:45 PM, Jerry Shafer wrote: I have only heard that it does not work well, l ha

Re: [RE-wrenches] Puzzle: Dryer does not work during FXR battery charging

2020-08-17 Thread Ray
l price to pay for reliable back up power. Ray Walters Remote Solar 303 505-8760 On 8/17/20 12:05 PM, Dave Angelini Offgrid Solar wrote: Many of these issues also were solved with an inverter that had gen support or load shave. Time for a new inverter or a generator that is twice the lo

Re: [RE-wrenches] Cable Tray Marking

2020-09-02 Thread Ray
or PV over 600 v " Danger - High Voltage Photovoltaic Source - Keep Away"  and of course that's so verbose that the average Joe is just going to stick his paws in there anyway. Ray Walters Remote Solar 303 505-8760 On 9/2/20 7:54 PM, Corey Shalanski wrote: Wrenches, I am curio

Re: [RE-wrenches] Pika Support by chance?

2020-09-12 Thread Ray
What size Air Conditioners? Those seem like really small battery banks for that.  I suppose they just run in the day mostly when the sun is shinning? Ray Walters Remote Solar 303 505-8760 On 9/12/20 3:25 PM, Dave Angelini Offgrid Solar wrote: I have 5 clients in Florida running mini-split

Re: [RE-wrenches] Pika Support by chance?

2020-09-13 Thread Ray
through the high heat of the late afternoons. Ray Walters Remote Solar 303 505-8760 On 9/12/20 5:09 PM, Dave Angelini Offgrid Solar wrote: Hi Ray, They run at night set at 77f. We use a 1 ton, 12,000 btu and a 2nd spare for day use. The spare is rarely needed. These are near 30 SEER, the

[RE-wrenches] Outback NEC 2020 Compliance?

2020-09-13 Thread Ray
unded AC and DC  exposed breaker terminals. I'm pretty sure they added this new code section to address equipment just like this.  Outback? are you finally going to fix this, and give us a better load center to work with? -- Ray Walters Remote Solar 30

Re: [RE-wrenches] Another pump quesiton

2020-09-16 Thread Ray
nths or so)  Once I put in a backup power system to protect those circuits, the controls lasted for a decade. Ray Walters Remote Solar 303 505-8760 On 9/15/20 10:29 PM, Sindelar Solar wrote: This has been my experience as well, although I can't give such specific rationale as to why the El Si

Re: [RE-wrenches] Another pump quesiton

2020-09-17 Thread Ray
are still technically DC at the drive, for those old timers that insist on DC. Ray Walters Remote Solar 303 505-8760 On 9/17/20 6:54 AM, Dana Orzel wrote: I have El-cids in stock & am selling them off. I have switched to the new AC technology that Grundfoss & TACO offer. They ar

Re: [RE-wrenches] Another pump quesiton

2020-09-17 Thread Ray
motor to vary speed, while VFD varies frequency to a 3 phase motor to vary speed. Or at least that's the way my feeble mind understands it.. Ray Walters Remote Solar 303 505-8760 On 9/17/20 9:42 AM, Dave Angelini Offgrid Solar wrote: Look at the recent Grundfos Scala2 recall, they

Re: [RE-wrenches] License Complaints for Bad Work

2020-09-28 Thread Ray
work, or stay out of the business.  Period.  Its no longer something we can continue to tolerate.  I used to clean up other peoples' messes, but I'm tired of it. Just because I hold an electrical contractor license doesn't mean I can go wire a hospital operating room or X-ray mac

Re: [RE-wrenches] Mate3 verses Mate3S

2020-10-02 Thread Ray
eating systems to go down? also very bad. I get more call backs for AGS, then any other thing, and its usually a generator issue (which we didn't sell). Ray Walters Remote Solar 303 505-8760 On 10/2/20 1:35 PM, Tuss, Lones wrote: Hello Tump You may want to go into the aux setpoints on th

Re: [RE-wrenches] GTBB inverters without batteries

2020-10-05 Thread Ray
All of the GTBB inverters I've ever used needed the battery to even function. Ray Walters Remote Solar 303 505-8760 On 10/5/20 9:20 AM, Jeff Clearwater wrote: Hey Esteemed colleagues. I'm curious which GTBB inverters folks are installing when the customer can't afford batte

Re: [RE-wrenches] Positive grounded arrays

2020-10-14 Thread Ray
The Midnite Solar Classic Controller used to be able to be positive grounded.  The Classic 250 can do five 60 cell modules in series. Ray Walters Remote Solar 303 505-8760 On 10/14/20 3:18 PM, Dave Angelini Offgrid Solar wrote: I got around this for a client by adding an XW and the high

Re: [RE-wrenches] DPW rack adjustment

2020-10-16 Thread Ray
We've used an adjustable link like this Ray Walters Remote Solar 303 505-8760 On 10/15/20 12:50 PM, Chris Schaefer wrote: I'd suggest reaching out to Travis at MT Solar as he has made custom manual adjusters for my old installed DPW pole mounts. No bolts to remove and easy for

Re: [RE-wrenches] Mixing Outback 100 series C with old FX system

2020-10-19 Thread Ray
solution, and I find it annoying that Outback's most expensive controller does not have an onboard screen like the much lower cost little FMs. Ray Walters Remote Solar 303 505-8760 On 10/19/20 12:55 PM, Jay wrote: On page 71 there is a small note about hooking up a FNDC without an inv

Re: [RE-wrenches] NEC for Batteries < 60v ??

2020-10-19 Thread Ray
labeled "Emergency Disconnect". So here's the real question:   Does 480.7(A) exempt us from 480.7(B)? Ray Walters Remote Solar 303 505-8760 On 3/9/19 8:08 PM, Brian Mehalic wrote: Hi Glenn, I don't completely agree with your interpretation of ESS systems and the application

Re: [RE-wrenches] NEC for Batteries < 60v ??

2020-10-19 Thread Ray
n: Under 480.7, are batteries below 60v still required to have the remote disconnect?  They are exempted from having a disconnect at all in 480.7(A)..quite confusing. Ray Walters Remote Solar 303 505-8760 On 10/19/20 7:06 PM, Jerry Shafer wrote: Wrenches Blue planet are fire and UL listed

Re: [RE-wrenches] NEC for Batteries < 60v ??

2020-10-20 Thread Ray
fire fighter safety with home owner safety.  Article 445 Generators, exempts generators under 15 kW. It seems something similar for off grid would be appropriate. How many times has this actually been a problem? or is this possibly just a high tech solution in search of an imagined problem?

Re: [RE-wrenches] FMC in battery rooms

2020-10-22 Thread Ray
concentration outside of the battery. Anyone that is concerned should just use LFP chemistry batteries. Ray Walters Remote Solar 303 505-8760 On 10/22/20 11:36 AM, Mark Frye wrote: Perhaps we should be applying Article 500 to the installation of batteries as well. On 10/22/2020 10:02 AM, Kent

[RE-wrenches] Sound Equipment Inverter

2020-10-22 Thread Ray
t induces the most noise in these old vacuum tube circuits. This is a 48 v application that also needs a built in charger with transfer switching.  Exeltech does not appear to have anything in that department.  Any other choices?  How are Samlex? As always, thanks in advance for your ti

Re: [RE-wrenches] Sound Equipment Inverter

2020-10-22 Thread Ray
s, so I look forward to hearing more about Bryan's studio build, too. Ray Walters Remote Solar 303 505-8760 On 10/22/20 5:29 PM, Jay wrote: Hi Ray How many watt do you need? Jay On Oct 22, 2020, at 4:42 PM, Ray wrote: Hi All; I've just had an inquiry on building a portable sound

Re: [RE-wrenches] Frequency shift on AC coupled off grid resi system

2020-11-23 Thread Ray
and premature cell failures to the list, along with the unforgivable "Dark Start" when the batteries are discharged below the LBCO setting. Ray Walters Remote Solar 303 505-8760 On 11/23/20 8:57 AM, Mac Lewis wrote: Hi Chris, I have no direct experience trying to troubleshoot devices tha

Re: [RE-wrenches] Conext SW4048 not charging from generator

2020-12-15 Thread Ray
much better.  They really need something in the 6.5 kW to 9 kW range, and 240 to 120 transformer if the Conext is not the 240/120 model, so that the generator is loaded evenly. Ray Walters Remote Solar 303 505-8760 On 12/15/20 1:57 PM, Sindelar Solar wrote: Dave, I would first suspec

Re: [RE-wrenches] Remote Alert and Bootstrapping on Sunny Island AC Coupled System

2020-12-17 Thread Ray
s it has backup override that starts the generator before the batteries get to 44 V. Ray Walters Remote Solar 303 505-8760 On 12/17/20 5:49 PM, Tump wrote: This is totally normal w/ the displays. There IS an emergency charge setting…. You put AC into the AC out essentially AC coupling w/ the ge

Re: [RE-wrenches] Remote Alert and Bootstrapping on Sunny Island AC Coupled System-Follow up

2020-12-19 Thread Ray
e SI settings anyway. Good luck, Papa Nerd, Ray Walters Remote Solar 303 505-8760 On 12/19/20 2:19 AM, William Miller wrote: Wrenches: Thanks for all of your priceless knowledge.  I feel like we are a little nerd family. William Miller Miller Solar 17395 Oak Road, Atascadero, CA

Re: [RE-wrenches] generator tripping GFCI

2020-12-19 Thread Ray
Is it possible that neutral is bonded to ground in the generator?  I've found lots of multi-bonded neutrals over the years, and had it cause all sorts of weirdness. Ray Walters Remote Solar 303 505-8760 On 12/19/20 5:33 PM, jay wrote: HI All, I have a client with a older Kohler 8

Re: [RE-wrenches] generator tripping GFCI

2020-12-20 Thread Ray
I second Dave's comment on trying different GFCIs.  Definitely had some that wouldn't work correctly with generator/ inverter systems. I'd take 2 or 3 other choices. Otherwise your check list looks like the way to proceed.  We always love to hear back what you find. Ray Walte

Re: [RE-wrenches] Growatt 5k inverter w/ transformer, more China junk?

2021-01-04 Thread Ray
e even if its installing good equipment. It's still 1/2 the money, for double the work. And one last thing: folks that are trying to cheap out are on average going to be less likely to appreciate and pay for your expertise. Just curious, who sold this to them? Ray Walters Remote Solar 303 50

Re: [RE-wrenches] Radian Charges 1 hour per calendar day

2021-01-08 Thread Ray
ng of Cooks in the Kitchen, William.   Ray Walters Remote Solar 303 505-8760 On 1/8/21 4:24 PM, William Miller wrote: Mick: Here’s a thought:  If the system has an FNDC, the charging may be programmed to terminate at a specific SOC.  I have been told by OB tech support, and I believe this, that

Re: [RE-wrenches] MLSD module level shutdown

2021-01-29 Thread Ray
g out part of the array.  How about an exemption from MLSD for systems below a certain voltage, and having animal guard in place, and those would still have string level shut down. Ray Walters Remote Solar 303 505-8760 On 1/29/21 3:58 PM, frenergy wrote: Andrew,             If these are the

Re: [RE-wrenches] MLSD module level shutdown

2021-01-29 Thread Ray
ck of each module. Teck 90 Armoured Power & Control Cable 600V CSA FT4 HL ...Llt M10 Bayonet Lock Molding Waterproof Cable 2 Pole ... Ray Walters Remote Solar 303 505-8760 On 1/29/21 8:10 PM, Hilton Dier wrote: There’s a buried-in-plain-sight issue here that has bugged me for years. In th

Re: [RE-wrenches] Energy Storage and Working Spaces for Other Equipment

2021-01-31 Thread Ray
having to lean awkwardly over or around something to get to the breakers, its probably a violation. Ray Walters Remote Solar 303 505-8760 On 1/31/21 5:55 PM, Jason Szumlanski wrote: I'm reading that the working space must be down to the floor/grade with the exception of other equipment ex

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