I have had a few switching power supplies die from using them with a modified sw inverter, and wouldn't trust the combination for a site you couldn't easily access. If you are using transformer type power supplies, this may be less of an issue. In any case you will lose efficiency and thus storage capacity with inverting, I would try to use DC power direct from batteries if at all possible, and for high reliability and more efficiency use pure SW. I have been known to adapt an industrial PureSineWave APC UPS with continuous rating to handle a much larger battery storage.
-- Israel Lopez-LISTS wrote: > Hey Guys, > > For running commodity routers, radios, servers on a remote site, is > using a modified sine wave acceptable? I have some electrical engineers > at the site im working on thinking of putting in a modified sine > inverter, and joining them up with a large battery cache. > > The question we raised was, will a modified sine wave be > damaging/problematic for things like a Ubiquti Radio/POE Injector, small > WRT54GL router, small switch, and two servers (300-400w each). > > Let me know. > > I searched the lists and found this, > http://lists.wispa.org/pipermail/wireless/2007-July/027900.html but I > didnt see the impact on the equipment there, just UPSes. > > I am going from: > > [very dirty mains 90-120v] - [battery charger] - [battery bank] - > [inverter] --- outlets, [Equipment Transformers] - [Equipment] > > Ideas? Other power engineers on site brought along a Chicago Electric > Inverter #95596 - > http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=95596 > > -Israel > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > > -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
