Re: [RE-wrenches] Commercial three phase inverter @208V

2020-09-18 Thread Garrison
If you do go with a transformer I'll second Dongan. They know solar and will build to match your inverter output so no material is wasted. CPS just released a 25kW 208V inverter...but it might be more cost effective to use a 480V inverter and transformer depending on layout, conduit length, equip

Re: [RE-wrenches] Commercial three phase inverter @208V

2020-09-18 Thread Barton Churchill
Just use a transformer. [cid:6c26afbc-2b00-4b95-b459-380117216f20]Barton Churchill Director, Power Division 2042 Stadium Drive Suite 2 • Bozeman, MT 59715 • (O) 406-587-2917 • (D) 406-589-4493 235 E. Broadway • Jackson, WY 83001 • (O) 307-200-2210 bchurch...@energy-1.net

Re: [RE-wrenches] Commercial three phase inverter @208V

2020-09-18 Thread August Goers
We have a similar size system in the works and a designer recommended Dongan transformers: https://dongan.com/product/ I have not sourced them or worked with them yet, but they definitely have models that will work spec-wise with the CORE1 inverters. August On Fri, Sep 18, 2020 at 3:10 PM Jerry

Re: [RE-wrenches] Commercial three phase inverter @208V

2020-09-18 Thread Jerry Shafer
Wrenches I use the SMACore and step-down transformer Jerry On Fri, Sep 18, 2020, 1:04 PM Chris Mason wrote: > I'm bidding a commercial rooftop of about 200KW using string inverters. > The voltage is 208V 3Ph 60Hz, and I can't find an inverter over 15KW. I was > hoping to use the SMA 50KW CORE 1

Re: [RE-wrenches] Commercial three phase inverter @208V

2020-09-18 Thread Chris Mason
The actual system I am proposing is 1 x 200KW and 1 x 50KW on another building so I am thinking 5 x 50KW Core 1 inverters. On Fri, Sep 18, 2020 at 4:36 PM Matt Partymiller wrote: > Three Core 62s with a transformer is a great solution. Lots of Fronius > 15s could work but you could buy a backup

Re: [RE-wrenches] Commercial three phase inverter @208V

2020-09-18 Thread Chris Mason
Thank you for taking the time to recommend this. Transformers are easy, we're an electrical contractor when we are not installing solar and we supply high voltage products to projects. Also a generator dealer but that's another story. I was about to price the transformers as a last resort. Have you

Re: [RE-wrenches] Commercial three phase inverter @208V

2020-09-18 Thread Matt Partymiller
Three Core 62s with a transformer is a great solution. Lots of Fronius 15s could work but you could buy a backup transformer for the difference. Contact me off-list if you need help finding transformers. SMA will also direct you to some good solutions if pressed. Matt From: RE-wrenches On

[RE-wrenches] Commercial three phase inverter @208V

2020-09-18 Thread Chris Mason
I'm bidding a commercial rooftop of about 200KW using string inverters. The voltage is 208V 3Ph 60Hz, and I can't find an inverter over 15KW. I was hoping to use the SMA 50KW CORE 1 but everything is 480V. Any leads on a reputable inverter? -- Chris Mason Solar systems designer Generac Generators

Re: [RE-wrenches] Snail Trails Suniva OPT 270

2020-09-18 Thread Jay
Hi Carl They look like static bubbles, not micro cracks. I’ve seen something like this before. The static has to do with how the EVA is laid down. Jay > On Sep 18, 2020, at 8:47 AM, Carl Adams wrote: > >  > Swapping a failed SE optimizer this AM and noticed some strange > marks/pattern

Re: [RE-wrenches] Another pump quesiton

2020-09-18 Thread Christopher Warfel
Yes, I forgot about them. Thank you for the reminder.  If you have a supplier of it would you contact me off list?  Chris On 9/17/2020 11:07 PM, frenergy wrote: I will second that, Todd.  I've had a Hartell  MD-10-HEH mag drive pump pumping glycol in my SHW closed loop for 23 years direct pow