automatic transfer switch


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automatic transfer switch

1. A combination of an electrically operated, double-throw transfer switch and a control panel. Under normal circumstances, the connected load is energized from the utility source. Upon failure of this source, the transfer switch automatically connects the load to an emergency power generator until power supplied by the utility is restored, at which time it reconnects the load to the utility source.
2. In an electric circuit, a switch which automatically transfers a specific load from the normal source to an emergency source if the former fails or if the voltage of the normal source drops below a preset minimum.
References in periodicals archive ?
The automatic transfer switch is based on Westinghouse switch components and conforms to UL 1008 standards.
* Automatic Transfer Switches Market - https://www.radiantinsights.com/research/2013-2028-report-on-global-automatic-transfer-switches-market
manufacturer of power control systems including paralleling switchgear and automatic transfer switches. "This strategic investment also strengthens Siemens' commitment to the U.S., the company's largest market in the world.
(Nasdaq: PPSI), a company engaged in the manufacture, sale and service of electrical distribution and on-site power generation equipment, including paralleling switchgear, has introduced a new range of self-protecting Automatic Transfer Switches.
Hyre will also be involved in the upgrade to existing high voltage and generator switchgear, as well as the installation of three closed transition and one dual motor automatic transfer switches.
Besides its new custom SCADA software, Russelectric also offers a line of automatic transfer switches; combination transfer-bypass/isolation switches; generator power control systems for prime power, emergency power, peak shaving, cogeneration and utility paralleling; and retrofit turbine control systems for gas, steam, and hydro systems.
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