I’ve never used the Tripp Lite APC series, but I believe their main purpose is emergency vehicles, RVs, boats, etc. where they switch automatically between battery and shore power. Using similar units in the past, I have found one thing to look for is how low the shore (commercial) power has to be for the transfer switch to switch to batteries. They may just use a relay, assuming commercial power is either there or it isn’t. But we get a lot of partial voltage situations like 60 or 80 volts, and a lot of our electronics won’t run on that. It’s very frustrating to drive out to a site that is down, and find a fully charged battery string that isn’t being used because the ATS thinks 80 volts is plenty.
From: Af [mailto:[email protected]] On Behalf Of Josh Corson Sent: Tuesday, December 27, 2016 11:48 AM To: [email protected] Subject: Re: [AFMUG] Battery backup at large sites How about a APC750 or APC1250 tripplite inverter/charger? Also I wanted to have a way to monitor how long of runtime the batteries have remaining...like the APC smart UPS units. On Dec 27, 2016, at 2:52 AM, Forrest Christian (List Account) <[email protected] <mailto:[email protected]> > wrote: The tool you're looking for in relation to the monitoring is a packetflux sitemonitor base unit. Others can point you toward the chargers. On Dec 26, 2016 11:36 PM, "Josh Corson" <[email protected] <mailto:[email protected]> > wrote: What is everyone using as a battery backup at sites that cannot use a standard off the shelve UPS? The site in mention is probably using 500 watts max. The battery side of things is a no brainer - calculate run time, determine your bank, buy batteries. However, what are you using for: 1. Inverter / charger 2. Network monitoring capability when AC goes out with SNMP. The hardest challenge I've found is sourcing something for network monitoring that isn't an all in one charger/inverter like the ICT models at 1k. Always wondered if you could rig a APC network card to work in a battery bank... If anyone could share the layout of their system I'd appreciate it! Josh Sent from my iPhone
