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  2. Emergency power system - Wikipedia

    en.wikipedia.org/wiki/Emergency_power_system

    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. A standby power system may include a standby generator, batteries and other apparatus. Emergency power systems are installed to protect ...

  3. Standby generator - Wikipedia

    en.wikipedia.org/wiki/Standby_generator

    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]

  4. Transfer switch - Wikipedia

    en.wikipedia.org/wiki/Transfer_switch

    Homes with standby generators may use a transfer switch for a few circuits or the whole home. Different models are available, with both manual and automatic transfer. Often small transfer switch systems use circuit breakers with an external operating linkage as the switching mechanism. The linkage operates two circuit breakers in tandem ...

  5. Load bank - Wikipedia

    en.wikipedia.org/wiki/Load_bank

    Load bank. An air-cooled load bank, being used for acceptance testing of a 3000 kW standby diesel generator set. This is one of three banks used to load the generator to verify performance on load changes and for factory run-in. A load bank is a piece of electrical test equipment used to simulate an electrical load, to test an electric power ...

  6. Uninterruptible power supply - Wikipedia

    en.wikipedia.org/wiki/Uninterruptible_power_supply

    Uninterruptible power supply. An uninterruptible power supply (UPS) or uninterruptible power source is a type of continual power system that provides automated backup electric power to a load when the input power source or mains power fails. A UPS differs from a traditional auxiliary / emergency power system or standby generator in that it will ...

  7. Engine–generator - Wikipedia

    en.wikipedia.org/wiki/Engine–generator

    Engine–generator. An engine–generator is the combination of an electrical generator and an engine (prime mover) mounted together to form a single piece of equipment. This combination is also called an engine–generator set or a gen-set. In many contexts, the engine is taken for granted and the combined unit is simply called a generator.

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