IEEE1547

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IEEE1547

Postby dgassett on Sat Aug 29, 2009 9:57 am

United Co-Op Services is my power supplier here in Erath County ,Texas. I would like to use an Outback GVFX 3524 inverter. United tells me the standard they will accept is IEEE1547 and they do not see anything in Outback's information about this standard. HELP they do not accept UL 1741.
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Re: IEEE1547

Postby Kent Osterberg on Sat Aug 29, 2009 10:14 am

If an inverter is listed to UL 1741, it meets the IEEE 1547 standard.
Maybe this link has info that will be helpful:
http://www.eere.energy.gov/de/ul_1741.html
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Re: IEEE1547

Postby dgassett on Mon Sep 21, 2009 2:04 pm

I have had several conversations with the United Co-OP folks. They will only accept IEEE 1547 standard. Will Outback be having such a standard soon? The UL 1741 is not good enough for the Co-Op . I have seen several CO-Ops web sites that require IEEE 1547.
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Re: IEEE1547

Postby tallgirl on Mon Sep 21, 2009 3:17 pm

Underwriters Laboratories is a nonprofit, independent organization that develops standards for product safety and conducts testing activities based on its own and other test procedures. One of these standards is UL 1741.

First released in May 1999 under the title "Standard for Static Inverters and Charge Controllers for Use in Photovoltaic Power Systems," UL 1741 is being updated under its latest version, "Standard for Inverters, Converters, and Controllers for Use in Independent Power Systems" to include requirements that apply to the more broadly defined distributed power sources incorporated under IEEE 1547. UL 1741 will combine product safety requirements with the utility interconnection requirements developed in the IEEE 1547 standard to provide a testing standard to evaluate and certify distributed generation products.

http://www.eere.energy.gov/de/ul_1741.html


That's what you need to provide them with. UL 1741 includes IEEE 1547, so anything which requires IEEE 1547 can be satisfied by a product that meets UL 1741. Here's a document from UL which says the same thing --

http://www.nrel.gov/docs/fy04osti/35051.pdf

The easiest ways to explain it is that one is a technical specification and another is a safety specification.
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Re: IEEE1547 Table 1-Interconnection system response to abnormal

Postby dgassett on Tue Dec 29, 2009 3:37 pm

My co-op said that the IEEE1547 standard for clearing time is voltage range no less than 50vac @ .16 second, Outback's voltage range is no less than 60vac @ .16 second. The Co-op said the IEEE1547 standard for clearing time is not more than 120vac plus @ .16 second, Outback's voltage is not more than 164.4vac which is too much for the co-op.@ .16 second. Is it possable to buy a GTFX or a GVFX with what the United Electric CO-Op wants including documentation? Thanks Doug Gassett Stephenville, Texas dgassett@hotmail.com PS I think the Co-op is afraid of small wind.
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Re: IEEE1547

Postby SteveHiggins on Wed Dec 30, 2009 2:40 pm

This is correct IEEE 1547 is part of UL1741 not the reverse. Unfortunately there is no other documentation that we have available that will make them happy until they are convinced that IEEE1547 is not it own requirement.

The Small Wind comment? What do you mean by this? Are you trying to output small wind into inverter?
Steve Higgins
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