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  2. Transmission line - Wikipedia

    en.wikipedia.org/wiki/Transmission_line

    They were developed by Oliver Heaviside who created the transmission line model, and are based on Maxwell's equations. Schematic representation of the elementary component of a transmission line. The transmission line model is an example of the distributed-element model. It represents the transmission line as an infinite series of two-port ...

  3. Lawsuit: NextEra used aging equipment to block clean ... - AOL

    www.aol.com/lawsuit-nextera-used-aging-equipment...

    Dec. 1—NextEra Energy, the owner of the Seabrook nuclear power plant, refused to replace aging infrastructure as part of an effort to block a clean-energy project, according to a lawsuit filed ...

  4. Transposition (transmission lines) - Wikipedia

    en.wikipedia.org/wiki/Transposition...

    Transposition is the periodic swapping of positions of the conductors of a transmission line, in order to reduce crosstalk and otherwise improve transmission. In telecommunications this applies to balanced pairs whilst in power transmission lines three conductors are periodically transposed.

  5. Transmission tower - Wikipedia

    en.wikipedia.org/wiki/Transmission_tower

    Transmission tower in Toronto, ON Single-circuit three-phase transmission line Transmission towers on a hill field. Three-phase electric power systems are used for high voltage (66- or 69-kV and above) and extra-high voltage (110- or 115-kV and above; most often 138- or 230-kV and above in contemporary systems) AC transmission lines. In some ...

  6. Transposition tower - Wikipedia

    en.wikipedia.org/wiki/Transposition_tower

    In electrical power transmission, a transposition tower is a transmission tower that changes the relative physical positions of the conductors of a transmission line in a Polyphase system. A transposition tower allows these sections to be connected together, while maintaining adequate clearance for the conductors.

  7. Overhead power line - Wikipedia

    en.wikipedia.org/wiki/Overhead_power_line

    An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy along large distances. It consists of one or more conductors (commonly multiples of three) suspended by towers or poles.

  8. Contingency (electrical grid) - Wikipedia

    en.wikipedia.org/wiki/Contingency_(electrical_grid)

    a double circuit transmission line; two generators; a bus bar. Non-credible (also called "out-of-range") contingencies are not used in planning, as they are rare and their effects are hard to predict, for example, failures of: [4] an entire electrical substation; a transmission tower that carries more than two lines.

  9. Tribes, environmental groups ask US court to block $10B ... - AOL

    www.aol.com/news/tribes-environmental-groups-ask...

    A federal judge is being asked to issue a stop-work order on a $10 billion transmission line being built through a remote southeastern Arizona valley to carry wind-powered electricity to customers ...