Power grids
Автор: Ginger Catnip Chronicles
Загружено: 2026-01-12
Просмотров: 0
Описание:
Your lights turn on a million times faster than you blink, because electricity rockets through the grid at nearly the speed of light. A power grid is the invisible highway hauling electrons from plant to plug. In 1882 Edison’s Pearl Street Station in Manhattan lit 59 customers with 110 volts of direct current. Today one North American grid synchronizes three hundred thousand miles of lines at sixty cycles per second. Coal boils water, wind spins blades, whatever spins a turbine drives a generator pushing three-phase alternating current. Transformers step voltage up to 765 kilovolts for cross-country travel, then back down to 120 for your toaster, trimming line losses from 30 percent to just 6.
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