In the past I have experienced automatic transfer switches that were basically just a relay and assumed the power was either on or off. Big problem. Especially since many of our power “outages” we actually have 60-90 volts. The ATS would sit there feeding 80 volts to the equipment thinking it was just fine.
I have a CyberPower ATS that lets you set the voltage and frequency sensitivity, and without tweaking the settings, it still wasn’t glitch free. I think most ATS with relays shoot for transfer within half a cycle of 60 Hz, on the assumption that equipment has to deal with that much dead time anyway. It’s really cool when switching from commercial power to a synchronized inverter with a zero-crossing solid state switch, but that’s a special case. From: Chuck McCown Sent: Sunday, January 10, 2016 5:19 PM To: af@afmug.com Subject: Re: [AFMUG] AC power redundancy splitter Is relay switching speed quick enough to keep a system alive or do I need to have a solid state switch I wonder. Triac would be good for this I think. Hmmm. How many watts? From: Josh Luthman Sent: Sunday, January 10, 2016 2:58 PM To: af@afmug.com Subject: Re: [AFMUG] AC power redundancy splitter 150 and I'll buy one Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 On Jan 10, 2016 4:32 PM, "Chuck McCown" <ch...@wbmfg.com> wrote: $370 ?!? Two power cords, one relay and one power plug... I can do it for $369 -----Original Message----- From: Sterling Jacobson Sent: Sunday, January 10, 2016 2:06 PM To: af@afmug.com Subject: Re: [AFMUG] AC power redundancy splitter Pretty cool for sure, but not for $370 for one device. If I need 10-12 plugs, I would be better off with a 1-2U bar solution I think. -----Original Message----- From: Af [mailto:af-boun...@afmug.com] On Behalf Of Cassidy B. Larson Sent: Saturday, January 9, 2016 10:00 PM To: af@afmug.com Subject: Re: [AFMUG] AC power redundancy splitter How about this? http://www.zonit.com/products/micro-ats/ On Jan 9, 2016, at 8:24 PM, Sterling Jacobson <sterl...@avative.net> wrote: I have a switch I want to use, but it only has one AC power plug. Most of my equipment has dual power input, one plugged into UPS and the other into non-ups regular AC power. I like it that way so I can change things around with the UPS and AC power without interruption. Plus sometimes UPS modules fail. Is there a Y dongle or power strip or something that I can take from two AC sources into one plug and fail between the sources?
