high-voltage circuit breaker

  • 81Northeast blackout of 2003 — States and provinces that experienced the blackout; not all areas within these political boundaries were affected. The Northeast blackout of 2003 was a widespread power outage that occurred throughout parts of the Northeastern and Midwestern… …

    Wikipedia

  • 82Railway electric traction — Contents 1 History 2 Unit types 2.1 DC traction units 2.2 …

    Wikipedia

  • 83ER9 electric trainset — For servicing suburban commuter lines, electrified on 25 kV, AC, the Railcar Manufacturing Plant of Riga produced ER9, then ER9p electric trainsets in the 1966 1975 period. The mass production of these trains had began in 1964. Railcar typesThree …

    Wikipedia

  • 84Charles Grafton Page — (January 25, 1812 in Salem, Massachusetts – May 5, 1868 in Washington, D.C.) was an American electrical experimenter and inventor, physician, patent examiner, patent advocate, and professor of chemistry. Charles Grafton Page …

    Wikipedia

  • 85Power supply unit (computer) — Power supply unit with top cover removed A power supply unit (PSU) supplies direct current (DC) power to the other components in a computer. It converts general purpose alternating current (AC) electric power from the mains (110 V to… …

    Wikipedia

  • 86Control of the National Grid (UK) — The National Grid (UK) is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations to ensure that electricity generated anywhere in Great Britain can be used to satisfy demand… …

    Wikipedia

  • 87List of IEC standards — In order to distinguish standards published by the International Electrotechnical Commission numerically from other international standards, their number range was shifted in 1997 by adding 60000. So what used to be called IEC 27 is now… …

    Wikipedia

  • 88Inrush current — or input surge current refers to the maximum, instantaneous input current drawn by an electrical device when first turned on. For example, incandescent light bulbs have high inrush currents until their filaments warm up and their resistance… …

    Wikipedia

  • 89Flyback converter — The Flyback converter is a DC to DC converter with a galvanic isolation between the input and the output(s). More precisely, the flyback converter is a buck boost converter with the inductor split to form a transformer, so that the voltage ratios …

    Wikipedia

  • 90electricity — I (New American Roget s College Thesaurus) An entity of nature with positive and negative parts Nouns 1. electricity, electric[al] power; electromagnetism, electromotion; electrical engineering, electronics, magnetics; electrolysis. 2. electric… …

    English dictionary for students