Quote:
Originally Posted by
exnihiloÂ
Absolutely, and thanks! I was wondering, do they have a system where the battery is always on, or partially on? (Meaning, the system will run off of the battery, in part, while it's being charged?) Although, I don't think the logistics of something like that is really applicable.
I think you're right, this one maybe faulty. When a brownout occurs, I hear a loud click, (which I know can be normal, but the other one, that works, does not make the same sound; and they're the same unit.
cg
Yes they are called an online UPS. Because I cannot be bothered typing my own explanation (
), here it is from Wikipedia:
Quote:
In an online UPS, the batteries are always connected to the inverter, so that no power transfer switches are necessary. When power loss occurs, the rectifier simply drops out of the circuit and the batteries keep the power steady and unchanged. When power is restored, the rectifier resumes carrying most of the load and begins charging the batteries, though the charging current may be limited to prevent the high-power rectifier from overheating the batteries and boiling off the electrolyte.
Because of the way they work and the higher quality of inverter and rectifiers, these UPS are super expensive.
As for the clicking sounds, if the UPS is line interactive this is the sound of the multi tap autotransforner. It is hard to comment on whether the volume of the clicking is normal, but. Although if it is dropping the load it is likely faulty.... either that or system is asking for more than the UPS can instantly supply.
