UPS operating time is usually very short, just a new zealand whatsapp few minutes. In these minutes we should have time to properly shut down a device, save data or, if the power outage is not long, to keep the system from stopping.
In addition to protecting them from falls, the Uninterruptible Power Supply also helps us in case of:
Overload
Short circuit
Voltage spikes
Undervoltage or overvoltage
If the power grid in our workspace is working normally, the UPS will simply charge its battery. In the event of an electrical emergency, it can help our equipment to avoid damage due to power outages.
Depending on their use and the protection features they provide, we can find various types of UPS on the market. Each model will provide us with certain aids and will be oriented towards one use or another.

UPS Categories
There are three main categories of UPS (Uninterruptible Power Supply) which are:
Standby (offline) : The load is powered directly from the input power and the backup power circuit only acts in case of power failures. That is, they supply the electric current without any filter to the connected devices. It is perfect for areas with a stable network.