All, A resource that all wrenches need to be aware of and read is a document published by the Interstate Renewable Energy Council called, "Connecting to the Grid". It includes a good laymen's explanation of anti-islanding--which goes far beyond voltage and frequency limits. URL below
http://irecusa.org/fileadmin/user_upload/ConnectDocs/Connecting_to_the_Grid_ Guide_6th_edition-1.pdf I wrote the first version of the document in 1996 to help explain these esoteric issues in understandable terms. It is in its 6th edition. Bill. _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org