Uninterruptible power supply
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An uninterruptible power supply or uninterruptible power source (UPS) is an electrical apparatus that provides emergency power to a load when the input power source or
A UPS is typically used to protect hardware such as
The primary role of any UPS is to provide short-term power when the input power source fails. However, most UPS units are also capable in varying degrees of correcting common utility power problems:
Some manufacturers of UPS units categorize their products in accordance with the number of power-related problems they address.