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2. Transfer switch - Wikipedia

   en.wikipedia.org/wiki/Transfer_switch

   A break-before-make transfer switch breaks contact with one source of power before it makes contact with another. It prevents backfeeding from an emergency generator back into the utility line, for example. [1] One example is an open transition automatic transfer switch (ATS). During the split second of the power transfer the flow of ...

3. Power inverter - Wikipedia

   en.wikipedia.org/wiki/Power_inverter

   A power inverter, inverter, or ... Simple inverter circuit shown with an electromechanical switch and automatic ... In applications where inverters transfer power ...

4. Emergency power system - Wikipedia

   en.wikipedia.org/wiki/Emergency_power_system

   The loss of normal power also triggers a battery operated starter system to start the generator, similar to using a car battery to start an engine. Once the transfer switch is switched and the generator starts, the building's emergency power comes back on (after going off when normal power was lost).

5. Uninterruptible power supply - Wikipedia

   en.wikipedia.org/wiki/Uninterruptible_power_supply

   The motor side of the unit in case Nos. 2 and 3 can be driven directly by an AC power source (typically when in inverter bypass), a 6-step double-conversion motor drive, or a 6-pulse inverter. Case No. 1 uses an integrated flywheel as a short-term energy source instead of batteries to allow time for external, electrically coupled gensets to ...

6. 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.

7. ASCO Power Technologies - Wikipedia

   en.wikipedia.org/wiki/ASCO_Power_Technologies

   With over 1400 employees and 500,000 square feet of manufacturing floor space, it is the world's largest manufacturer of power transfer switches. ASCO Power Technologies was founded in 1888 and developed the first commercially available automatic transfer switch in 1920. On November 1, 2017, ASCO Power Technologies was sold by Vertiv to ...