Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

Greetings Matt, I like the troubleshooting thoughts others have given. If all else leaves you with the issue persisting I would also consider checking for current on the grounding system and on bonded conductive materials/items on the property. It may be helpful to see if there is any current on

Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

"string two in conduit but string one outside of conduit, the inverter does not operate"... Maybe string two has a mild ground fault at the last module, positive side, or at its internal diode. ??? Basically why can't string two operate in the conduit? -Original Message- From: RE-wrenc

Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

I was thinking the same, done with battery cables to reduce inductance, Lloyd Sent from my iPhone On Sep 7, 2016, at 10:16 PM, "toddc...@finestplanet.com" mailto:toddc...@finestplanet.com>> wrote: im not sure why i am even suggesting this, but have you tried

Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

im not sure why i am even suggesting this, but have you tried twisting the separate string's pairs before running them through the conduit? todd On Wednesday, September 7, 2016 6:55pm, "Matt Partymiller" said: > Thanks for all the questions and interest in my troubleshooting. >

Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

Thanks for all the questions and interest in my troubleshooting. The polarities are definitely correct. When testing wires at the inverter with the DC disco off and fuses pulled, we see correct voltage on each string. We have tried using two clamp meters to measure current on each string while o

Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

hate to ask the obvious here, but you mean to say that volts and polarity are correct on both sets of wires at the inverter when not connected? and 2. what wattage modules are you using? jay peltz power > On Sep 7, 2016, at 2:45 PM, Matt Partymiller > wrote: > > Wrenches, > > One of

Re: [RE-wrenches] Grid tie with dump load?

Hi Kris, yes I think you need to help us with greater information about what the reasons are, and the specific requirements. 1. instantaneous or monthly? 2. does it have to be listed and approved? 3. is this utility requirement or customers fancy? 4. anything else? thanks jay peltz power > On

Re: [RE-wrenches] Grid tie with dump load?

Greetings Kris, I am curious as to what the utility metering/accounting mechanism is in the territory serving your client; Net Energy Metering, Sell All, or ??? And what value is given/paid for excess kWh generation exported to the grid? What is the clients goal(s) in considering a grid-tie PV s

Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

Maybe l missed it but is this a new installation or did it operate normally in the past Jerry On Sep 7, 2016 12:57 PM, "August Goers" wrote: > Definitely check polarity on each string. Could be positives and negatives > are mixed up and the wire colors are adding to the confusion. > > > > August

Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

Definitely check polarity on each string. Could be positives and negatives are mixed up and the wire colors are adding to the confusion. August *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Roy Rakobitsch *Sent:* Wednesday, September 07, 2016 3:35 PM

Re: [RE-wrenches] Grid tie with dump load?

One of our lurker friends asked me to add this to the conversation: Have the poster look into Open Energy Monitor: https://openenergymonitor.org/emon/ scroll down in the home page to "Solar PV diversion". This monitor can do an amazing amount of things, many of them independent of RE systems. It

Re: [RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

Have you measured the current of each string simultaneously while the issue was happening? Have you verified correct polarity on each string? Roy Rakobitsch NABCEP Certified Small Wind Installer® Certified Advanced Tower Climbing, Safety & Rescue Wind/PV Design Engineer Windsine LLC 631-514-4166 w

[RE-wrenches] Troubleshooting Stumper - Homerun Interference in Conduit/Inverter Turning Off/On Rapidly

Wrenches, One of our systems is having an issue I have not encountered before where the inverter switches between nighttime mode and interconnection every few seconds. I am hoping for some technical wisdom from the community. We have an array of 20 TrinaSmart modules in two strings of 10. The a

Re: [RE-wrenches] Grid tie with dump load?

Seems like a very unnecessary complication, The grid is the dump load. Michael D Nelson MD Electric & Solar, Inc. 707-684-0064 mobile 707-884-1862 office www.mdelectricsolar.com Sent from my iPhone > On Sep 7, 2016, at 12:54 PM, Daniel Young wrote: > > SolarEdge inverters have an export control

Re: [RE-wrenches] Grid tie with dump load?

SolarEdge inverters have an export control function if you install an external meter to them. They can be programmed to prevent any net energy export, or to limit that export to a specific amount (if you had a large system with a relatively smaller utility transformer for example). Here is a

[RE-wrenches] Grid tie with dump load?

REWs, I have a client that asked me if i can install a battery free grid tied system and have a dump load activate when it is overproducing. I am at a loss, here. Anyone have ideas? A CT on the line side that would activate a relay while current is flowing to the utility? Thanks, Kris -- Shi

Re: [RE-wrenches] Wire nuts

For fine stranded conductors we crimp ferrules over the fine stranded wires. The, the splice cap crimp goes over this and the other standard stranded wires. Works like a charm. Here is a example ferrule for 12 AWG: http://www.ferrulesdirect.com/terminal/UNFERR/N40012.htm As mentioned, there h