Re: [RE-wrenches] Multiple inverters

William, In the article you linked, directly after the image you included most recently, John Wiles states "Unfortunately, we do not have a definition of “PV system” in the Code." I would have to disagree there. Article 100, Definitions includes: "Photovoltaic (PV) System. The total components a

[RE-wrenches] ARE 110 Turbine Controller Alternative

Greetings, I have a customer whose ARE 110 voltage clamp has stopped working. I'm looking for a work around. Has anyone been down this road before? If so, I would like to hear what you've learned and maybe save myself some mis-steps in the process. Many thanks! -- Matt Sherald PIMBY Energy,

Re: [RE-wrenches] Multiple inverters

The original question was w/r to:**/The source interconnection of one or more inverters installed in one system shall be made at a dedicated circuit breaker or fusible disconnecting means./ and whether one disconnect could be used to disconnect multiple inverters. The inference as I read it wa

Re: [RE-wrenches] Multiple inverters

Hi Chris, For string inverters, the OCPD is sized per 705.60(B) which will specify the minimum breaker rating you need. Then, you can't go above the maximum OCPD specified by the manufacturer. For most string inverters that I can think of, this limits us to one breaker (OCPD) per inverter. I recal

Re: [RE-wrenches] Multiple inverters

Chris: The 2014 code would require individual disconnecting means prior to aggregation, i.e. an AC combiner. Therefore your scenario would not exist. Wm *From:* RE-wrenches [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Christopher Warfel *Sent:* Wednesday, February 2

Re: [RE-wrenches] Multiple inverters

Larry, Wrenches: I appreciate your questions and comments. I think there is a broader question here: How do we differentiate between a perceived intent of the Code authors versus the actual language they provide in the Code? Many members of this forum have commented on the forum and to me o

Re: [RE-wrenches] Multiple inverters

I know I keep popping up on this, but 2014 makes no sense if it is saying to connect multiple inverters to one disconnect. It would be difficult and dangerous to take one out of service for any reason including replacement. I would that that you'd have to shut down all the inverters just to rep

Re: [RE-wrenches] Multiple inverters

William, It seems this question needs to be addressed: What is the intended meaning of “installed in one system” in 2014? If you have separate “systems”, they should not be governed by 705.12. So, at what point does a “system” begin and end? PV modules to the disconnect? ...to the load panel? .