The other option I've used is to use one of the tripplite online UPS'es which have a *Very wide* input frequency range. Because it's online, it will take the power from the gen, and then clean it up to the right frequency for the load.
-forrest On Wed, May 8, 2013 at 10:55 AM, Matt Hoppes <mhop...@indigowireless.com>wrote: > This is the third time in about two years that we've had some major > power outages across our region due to the supplier lines going down. > > Every time the situation is the same, > > We roll out our portable generators to a few of our smaller sites that > don't have full-time generators -- and every time we have to fight with > them to get clean power out of them -- usually just ending up putting > equipment directly on the generators and bypassing the UPS systems. > > I've seen the generators go everywhere from 40Hz to 90Hz. > > Has anyone come across a nice portable alternator (as opposed to a > generator) that can be taken to tower sites as supplementary power? > > ~ Matt > _______________________________________________ > Wireless mailing list > Wireless@wispa.org > http://lists.wispa.org/mailman/listinfo/wireless >
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