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  2. Emergency power system - Wikipedia

    en.wikipedia.org/wiki/Emergency_power_system

    For a 208 VAC emergency supply system, a central battery system with automatic controls, located in the power station building, is used to avoid long electric supply wires. This central battery system consists of lead-acid battery cell units to make up a 12 or 24 VDC system as well as stand-by cells, each with its own battery charging unit ...

  3. Standby power - Wikipedia

    en.wikipedia.org/wiki/Standby_power

    However, for some devices with a built-in internal battery, such as a phone, the standby functions can be stopped by removing the battery. 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 ...

  4. Grid energy storage - Wikipedia

    en.wikipedia.org/wiki/Grid_energy_storage

    A Carnot battery is a type of energy storage system that stores electricity in heat storage and converts the stored heat back to electricity via thermodynamic cycles (for instance, a turbine). While less efficient than pumped hydro or battery storage, this type of system is expected to be cheap and can provide long-duration storage.

  5. 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]

  6. Reserve battery - Wikipedia

    en.wikipedia.org/wiki/Reserve_battery

    A reserve battery, also called stand-by battery, is a primary battery where part is isolated until the battery needs to be used. When long storage is required, reserve batteries are often used, since the active chemicals of the cell are segregated until needed, thus reducing self-discharge .

  7. Survival kit - Wikipedia

    en.wikipedia.org/wiki/Survival_kit

    An emergency kit, disaster bag, bug-out bag (BOB), [4] [5] [6] also known as a 72-hour kit, [7] GOOD bag (get out of Dodge), [8] [9] personal emergency relocation kit (PERK), go-bag, survival backpack, or quick run bag (QRB) [10] [11] is a portable kit containing items that would help a person to survive for 72 hours [12] during an escape or ...

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