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AC coupling of off grid Outback inverters seems to be a very good
solution for having a generator backup system while feeding the
grid. The generator won't have a problem synchronizing with the off
grid FX, and the grid tie inverter will take care of the UL 1741
requirements. Of course, transfer switches and protective relays
will be required. Depending on the grid tie inverter used, this
approach should be cost effective compared to using the new Xantrex
equipment. Also, the Outback technical support is excellent.
<br><br>
Drake <br><br>
<br>
At 11:03 AM 11/5/2008, you wrote:<br>
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<font color="#000080">I should have also mentioned that the dump or
diversion control can be done via an AC load with a relatively
inexpensive AC solid-state relay and AC loads such as AC baseboard or AC
electric water heater elements which are much easier and less expensive
than doing it with the lower voltage / higher current DC relay and
loads. <br>
<br>
The OutBack FX series offers an AUX output control mode for both AC and
DC diversion which has a fixed voltage level but has an adjustable on
time which can be set to zero for applications using a solid-state
relay. <br>
<br>
Christopher<br>
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Drake Chamberlin
Athens Electric
OH License 44810
CO License 3773
740-448-7328
740-856-9648 </body>
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