UPS stands for uninterruptible power supply. It is a critical piece of infrastructure that maintains continuous power to sensitive loads when the primary grid fails or sags. Large industrial UPS units use massive battery banks and solid-state inverters to keep substation control systems and data centers running smoothly until backup generators can start and synchronize.
The UPS batteries are showing high internal resistance and need to be swapped out during the next maintenance window.
Also heard as
- uninterruptible power supply
Related terms
Uninterruptible power supply
A backup power system that provides instantaneous emergency electricity to critical loads when the main supply fails.
SCADA
Supervisory control and data acquisition: the system that lets a control room watch and switch remote plant.
Black start
Restarting a power system from total shutdown using generators that can start without any outside supply.