When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Nelson River DC Transmission System - Wikipedia

    en.wikipedia.org/wiki/Nelson_River_DC...

    It includes two rectifier stations, Radisson Converter Station near Gillam at and Henday Converter Station near Sundance at , one inverter station, Dorsey Converter Station at Rosser located 26 kilometres (16 mi) north west of Winnipeg at ), and two sets of high-voltage direct current transmission lines. Each HVDC transmission line has two ...

  3. Butterfly valve - Wikipedia

    en.wikipedia.org/wiki/Butterfly_valve

    Unlike a ball valve, the disc is always present within the flow, so it induces a pressure drop, even when open. A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is ...

  4. List of hydroelectric power station failures - Wikipedia

    en.wikipedia.org/wiki/List_of_hydroelectric...

    Schoellkopf Power Station: Niagara Falls, New York United States: Destruction of the plant as it fell from the Niagara Gorge wall and collapsed into the Niagara River, caused by water seeping into the back wall of the power station. One worker was killed and damage was estimated at US$100 million (or $1121 million today, adjusted for inflation).

  5. HVDC converter station - Wikipedia

    en.wikipedia.org/wiki/HVDC_converter_station

    When line commutated converters are used, the converter station will require between 40% and 60% of its power rating as reactive power. This can be provided by banks of switched capacitors or by synchronous condensers , or if a suitable power generating station is located close to the static inverter plant, the generators in the power station.

  6. Three-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Three-phase_electric_power

    At the power station, an electrical generator converts mechanical power into a set of three AC electric currents, one from each coil (or winding) of the generator. The windings are arranged such that the currents are at the same frequency but with the peaks and troughs of their wave forms offset to provide three complementary currents with a ...

  7. Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

  8. Pearl Street Station - Wikipedia

    en.wikipedia.org/wiki/Pearl_Street_Station

    A sketch of the Pearl Street Station. Pearl Street Station was Thomas Edison's first commercial power plant in the United States. It was located at 255–257 Pearl Street in the Financial District of Manhattan in New York City, just south of Fulton Street on a site measuring 50 by 100 feet (15 by 30 m). [1]

  9. AOL Mail

    mail.aol.com/d?reason=invalid_cred

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!