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  2. Standby generator - Wikipedia

    en.wikipedia.org/wiki/Standby_generator

    Standby generators. A standby generator is a back-up electrical system that operates automatically. [1] Within seconds of a utility outage an automatic transfer switch senses the power loss, commands the generator to start and then transfers the electrical load to the generator. The standby generator begins supplying power to the circuits. [2]

  3. Emergency power system - Wikipedia

    en.wikipedia.org/wiki/Emergency_power_system

    A backup generator for a large apartment building A backup power fuel cell for telecom applications A portable emergency power generator in a shipping container. An emergency power system is an independent source of electrical power that supports important electrical systems on loss of normal power supply.

  4. Auxiliary power - Wikipedia

    en.wikipedia.org/wiki/Auxiliary_power

    Types of auxiliary power services include Class B, a standby power plant to cover extended outages of the order of days; Class C, a 10-to-60-second quick-start unit to cover short-term outages of the order of hours; and Class D, an uninterruptible non-break unit using stored energy to provide continuous power within specified voltage and ...

  5. Black start - Wikipedia

    en.wikipedia.org/wiki/Black_start

    Toronto during the Northeast blackout of 2003, which required black-starting of generating stations.. A black start is the process of restoring an electric power station, a part of an electric grid or an industrial plant, to operation without relying on the external electric power transmission network to recover from a total or partial shutdown.

  6. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    A UPS differs from a traditional auxiliary/emergency power system or standby generator in that it will provide near-instantaneous protection from input power interruptions by switching to energy stored in battery packs, supercapacitors or flywheels. The on-battery run-times of most UPSs are relatively short (only a few minutes) but sufficient ...

  7. Standby power - Wikipedia

    en.wikipedia.org/wiki/Standby_power

    In the past, standby power was primarily a non-issue for users, electricity providers, manufacturers, and government regulators. In the twenty-first century's first decade, awareness of the issue grew, becoming essential for all parties. Up to the middle of the decade, standby power was often several watts or tens of watts per appliance.

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