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Industrial devices may also be constructed to be dust or water-tight. NEMA wiring devices are made in current ratings from 15–60 A, and voltage ratings from 125–600 V. There are two basic configurations of NEMA plug and socket: straight-blade and locking. Numbers prefixed by L are twist-lock, others are straight blade. Locking type ...
A simplified diagram of a two-phase alternator [1] Two-phase electrical power was an early 20th-century polyphase alternating current electric power distribution system. Two circuits were used, with voltage phases differing by one-quarter of a cycle, 90°. Usually circuits used four wires, two for each phase.
All NEMA 6 devices are three-wire grounding devices (hot-hot-ground) used for 208 and 240 V circuits and rated for 250 V maximum, with the 6-15, 6-20 and 6-30 being grounding versions of the 2-15, 2-20 and 2-30, respectively. The 6-15 resembles the 5-15, but with collinear horizontal pins, spaced 23 ⁄ 32 in (18.3 mm) center-to-center. The 20 ...
English: Wayne petrol pump, 1923, in 'BP' livery in the new Energy Revolution gallery of the Science Museum, London. Object number 1967-164. Date: 22 April 2024, 14: ...
A transformer supplying a three-wire distribution system has a single-phase input (primary) winding. The output (secondary) winding has a center tap connected to a grounded neutral. As shown in Fig. 1, either end to center has half the voltage of end-to-end. Fig. 2 illustrates the phasor diagram
1988 Wayne/International Lifeguard Wayne is a name in school transportation that predates the familiar yellow school bus seen all over the United States and Canada. Beginning in the 19th century, craftsmen in Richmond, Indiana at Wayne Works and its successors built horse-drawn vehicles, including kid hacks, evolving into automobiles and virtually all types of bus bodies during the 20th century.
Franklin Electric Co., Inc. is a manufacturer and distributor of products and systems focused on the movement and management of water and energy. The company offers pumps, motors, drives, and controls for use in a variety of residential, commercial, agricultural, industrial, and municipal applications.
A charge pump is a kind of DC-to-DC converter that uses capacitors for energetic charge storage to raise or lower voltage. Charge-pump circuits are capable of high efficiencies , sometimes as high as 90–95%, while being electrically simple circuits.