3 ms·
> But isn't the UPS only expected to last for 15 minutes or so, to give the backup generators time to start up? They are expected to last that long, but if the
by throw0101d 3y ago
> But isn't the UPS only expected to last for 15 minutes or so, to give the backup generators time to start up?
They are expected to last that long, but if the batteries are on year 4 of their 5-year life, that may not happen. What also may not happen is the generator starting up.
Or the automatic transfer switch (ATS) not working properly: it should be on either input Feed A or Feed B, but when it tries to throw itself over (making a loud kah-chunk sound), it gets stuck in between—this happened to us once.
"The perversity of the universe always tends toward a maximum." — Finagle's Law of Dynamic Negatives
- jabart 3y agoI know our DC does load test on the batteries and generators. There are also 5 generators on site. I get all the emails about these tests since they are marked low risk. Fun story, small IT company had a natural gas generator installed at the new office they built out. Power went out for the first time, lights go out, generator kicks on, lights turn on, lights turn off. Long story short the electrician didn't have the right breaker size in the truck and used a small one. Building was empty when it was tested which is why bigger DCs have a load generator to test at load.