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Electric power transmission - Wikipedia

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Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. The interconnected lines that facilitate this movement form a transmission network. This is distinct from the local wiring between high-voltage substations and customers, which is typically referred to as electric power distribution. The combined transmission and distribution network is part of electricity delivery, known as the electrical grid. Efficient long-distance transmission of electric power requires high voltages. This reduces the losses produced by strong currents. Transmission lines use either alternating current (AC) or direct current (DC). The voltage level is changed with transformers. The voltage is stepped up for transmission, then reduced for local distribution. A wide area synchronous grid, known as an "interconnection" in North America, directly connects generators delivering AC power with the same relative frequency to man

Electric power transmission - Wikipedia Jump to content From Wikipedia, the free encyclopedia Bulk movement of electrical energy For other uses, see Electric transmission (disambiguation) . "Power lines" redirects here. For power lines in general, see Overhead power line . This article has multiple issues. Please help improve it or discuss these issues on the talk page . ( Learn how and when to remove these messages ) This article may be in need of reorganization to comply with Wikipedia's layout guidelines . Please help by editing the article to make improvements to the overall structure. ( M

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