It is a type of continual power system.Ī UPS is typically used to protect hardware such as computers, data centers, telecommunication equipment or other electrical equipment where an unexpected power disruption could cause injuries, fatalities, serious business disruption or data loss. The on-battery run-time of most uninterruptible power sources is relatively short (only a few minutes) but sufficient to start a standby power source or properly shut down the protected equipment. A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide near-instantaneous protection from input power interruptions, by supplying energy stored in batteries, supercapacitors, or flywheels. A large data-center-scale UPS being installed by electriciansĪn 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 mains power fails.
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