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The war of the currents was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s. It grew out of two lighting systems developed in the late 1870s and early 1880s; arc lamp street lighting running on high-voltage alternating current (AC), and large-scale low-voltage direct current (DC) indoor incandescent lighting ...
President Trump signs the Paycheck Protection Program and Health Care Enhancement Act (H.R. 266), April 24, 2020. The Paycheck Protection Program (PPP) is a $953-billion business loan program established by the United States federal government during the Trump administration in 2020 through the Coronavirus Aid, Relief, and Economic Security Act (CARES Act) to help certain businesses, self ...
Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current (DC), which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy ...
The New Haven chose the 11 kV 25 Hz system, later used by the PRR, in addition to working with Westinghouse to develop AC/DC electric motors (locomotives) to run on both AC overhead lines and DC third rail. The main line, now Metro-North Railroad's New Haven Line, was converted to 12.5 kV 60 Hz in 1985.
An electrical injury, (electric injury) or electrical shock (electric shock) is damage sustained to the skin or internal organs on direct contact with an electric current. [2][3] The injury depends on the density of the current, tissue resistance and duration of contact. [4] Very small currents may be imperceptible or only produce a light ...
CHICAGO (Reuters) -American Airlines is beginning the phased return of furloughed workers after the U.S. Congress passed a pandemic aid package with $15 billion in payroll support for airlines ...
Texas Interconnection. The two major and three minor NERC Interconnections, and the nine NERC Regional Reliability Councils. The Texas Interconnection is an alternating current (AC) power grid – a wide area synchronous grid – that covers most of the state of Texas. The grid is managed by the Electric Reliability Council of Texas (ERCOT).
Only three states—Washington, Nevada, and California—have more unemployed workers than job openings. In Maine, Wyoming, Mississippi, New Hampshire, Maryland, Virginia, Vermont, South Dakota ...