Re: [RE-wrenches] 1000V System Wiring Details

August: What about the expense of servicing and/or replacing roof mounted inverters? There is a very finite limit on the weight that is practical/legal to haul up a ladder. Sure it's easy to toss an inverter on the roof at the install when there is already a lift in the budget to hoist the PV

Re: [RE-wrenches] 1000V System Wiring Details

All the European spec inverters I have used would shut down at 600V so that's not a great idea. On systems with long runs, we use a fused switched combiner and run 1KV #6 for the home runs. But that's for very long runs. You can put a lot of power over a #10 PV Wire at 800V working voltage. On We

Re: [RE-wrenches] 1000V System Wiring Details

Hi Dave, We've run all the way home with 1000 V PV wire and only made splices with Amphenol MC4-type 1000 V connectors. Going forward, we are going to strive to put inverters on the roof to minimize the expense of dealing with the 1000 V runs. Another interesting idea is to use the 1000 V inverter

Re: [RE-wrenches] 208 3 phase Off Grid Inverter

Yes, absolutely on the German ! BTW, I went to Munich last June for R&R and the Intersolar show... Loved it there ! Our little comm box interfaces the SMA / Sunny Island's CAN bus to the Classic's modbus over RS232 network phone jack connections and interprets theirs to ours, just like it wa

[RE-wrenches] FW: Unusual problem with SMA TL inverter on metal roof

With SMA's assistance, we're replacing the two 10 kW TLs with non-TL SB US inverters. marco _ From: re-wrenches-boun...@lists.re-wrenches.org [re-wrenches-boun...@lists.re-wrenches.org] on behalf of August Goers [aug...@luminalt.com] Sent: Tuesday, March 25, 2014 8:41 PM To: RE-wre

[RE-wrenches] 1000V System Wiring Details

Hi Wrenches- If you're installing 1000V systems, are you running continuous PV WIRE all the way to your inverters? If not-- what splices have you found (aside from MC4s and similar) that are listed for 1000V? And when transitioning from PV WIRE to a cheaper conductor, what 1000V options exist

Re: [RE-wrenches] 208 3 phase Off Grid Inverter

Hi Bob; This sounds like once again Midnite is solving my problems, before I even know I have them. Can your interface work directly with the SI, or does it require the Sunny Web box, too? Also, is Midnite's Whizbang Jr. shunt sensing usable in this, or do you just defer to the SI's current s

[RE-wrenches] Need 1 Sharp NT series

Wrenches: I am looking for one Sharp NT series module. This is a mono 72 cell 62 by 32.5. Or if you know of a similar replacement. Thanks in advance for your off-list response. William Gradient Cap_mini Lic 773985 millersolar.com 805-438-5600

Re: [RE-wrenches] 208 3 phase Off Grid Inverter

Its Mexico, so its 60 Hz, 3 phase 120/ 208.I had originally considered the Radians for this project, until I went down and determined the actual voltage. R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 3/26/2

Re: [RE-wrenches] Unusual problem with SMA TL inverter on metal roof

I should have mentioned that our installation is not a metal roof either. Ours is a flat foam roof with large tilt racked arrays of SunPower modules. I've spoken with SMA tech support twice on this and got the idea that either I have a real ground fault or that there is some sort of inductance r

Re: [RE-wrenches] 208 3 phase Off Grid Inverter

You mentioned this is out of the country -- is it 230v line to neutral, or 120/208? OutBack's export Radian can do three phase, up to 72kW continuous. HTH, Phil On Tuesday, March 25, 2014, Ray Walters wrote: > OK everyone is steering me towards the Sunny Island. I can probably > justify

Re: [RE-wrenches] Unusual problem with SMA TL inverter on metal roof

If the problem is capacitive, it ought to be possible to fit a high resistance conductor between ground and the center point of the arrays to discharge the capacitive charge without affecting power performance. On Wed, Mar 26, 2014 at 6:13 AM, Glenn Burt wrote: > I wonder if it is the capaciti

Re: [RE-wrenches] 208 3 phase Off Grid Inverter

Hi Ray, This works very well with the SI's. We have an off grid, dual SI system in the Bahamas which uses 5 Classics and 20 kW of PV, along with a 60 kW generator. It's been in for about 6 months and the client is very pleased. Midnite makes a nice pre-wired panel (8' x4'), heavy, but in off off

Re: [RE-wrenches] Unusual problem with SMA TL inverter on metal roof

I wonder if it is the capacitive charge common on larger arrays that is seen as a problem. -Original Message- From: "Jeff Irish" Sent: ‎3/‎25/‎2014 21:33 To: "RE-wrenches" Subject: Re: [RE-wrenches] Unusual problem with SMA TL inverter on metal roof August, We're seeing multiple inver