YTjnti

Comune in Piedmont, Italy Livorno Ferraris Comune Comune di Livorno Ferraris Town Hall Coat of arms Livorno Ferraris Location of Livorno Ferraris in Italy Coordinates: 45°17′N 8°5′E  /  45.283°N 8.083°E  / 45.283; 8.083 Coordinates: 45°17′N 8°5′E  /  45.283°N 8.083°E  / 45.283; 8.083 Country Italy Region Piedmont Province Vercelli (VC) Frazioni Castell'Apertole, Colombara, Garavoglie, Gerbidi, San Giacomo Government  • Mayor Stefano Corgnati Area  • Total 58.1 km 2 (22.4 sq mi) Elevation 188 m (617 ft) Population (31 December 2010) [1]  • Total 4,529  • Density 78/km 2 (200/sq mi) Demonym(s) Livornesi Time zone CET (UTC+1)  • Summer (DST) CEST (UTC+2) Postal code 13046 Dialing code 0161 Patron saint Lawrence of Rome Saint day 10 August Website Official website...

John Dixon Gibbs (1834–1912) was a British engineer and financier who, together with Lucien Gaulard is often credited as the co-inventor of the AC step-down transformer. The transformer was first demonstrated in 1883 at London's Royal Aquarium. [1] At the time the term "transformer" had not yet been invented, so instead it was referred to as a "secondary generator". [2] Although he is usually credited equally with Gaulard, Gibb's role in the invention appears to have been more that of a financial backer and businessman. [3] [4] Although the underlying physics of the transformer, mainly Faraday's law of induction, had been known since the 1830s, transformers only became viable after the introduction of Gaulard and Gibbs's transformer design in 1883. The breakthrough was to build an iron transformer core which could act as a magnetic circuit. At the time, their invention was seen as overcomplicated since it contained a movable armature. [4] It caug...

Lucien Gaulard Born 1850  ( 1850 ) Paris Died November 26, 1888  ( 1888-11-27 ) Paris Occupation Inventor Lucien Gaulard (1850 – November 26, 1888) invented devices for the transmission of alternating current electrical energy. Contents 1 Biography 2 Patents 3 See also 4 References Biography Gaulard was born in Paris, France. A power transformer developed by Gaulard of France and John Dixon Gibbs of England was demonstrated in London, and attracted the interest of Westinghouse. Gaulard and Gibbs first exhibited a device in London in 1881 and then sold the idea to the American company Westinghouse. They also exhibited the invention in Turin in 1884, where it was adopted for an electric lighting system. Many of the features of their design were adapted to the particular laws governing electrical distribution in the UK. [1] In 1882, 1884, and 1885 Gaulard and Gibbs applied for patents on their transformer; however, these were overturned due to actions initiated by Seba...

For the magazine, see Power Engineering (magazine). For the similar term but with a broad sense, see Energy engineering. A steam turbine used to provide electric power. Relevant topics on Electrical Installations Wiring practice by region or country North American practice United Kingdom Practice Regulation of electrical installations BS 7671 UK wiring regulations IEC 60364 IEC international standard Canadian Electrical Code (CEC) US National Electrical Code (NEC) Cabling and accessories AC power plugs and sockets Cable tray Electrical conduit Mineral-insulated copper-clad cable Multiway switching Steel wire armoured cable Ring main unit Ring circuit Thermoplastic-sheathed cable Switching and protection devices AFCI ELCB Circuit breakers Fuse Residual Current Device (RCD) / GFCI (USA) Distribution board Consumer unit Electrical switch Earthing system v t e Power engineering , also called power systems engineering , is a subfield of electrical engineering that deals with the generation,...

Three-phase totally enclosed fan-cooled (TEFC) induction motor with end cover on the left, and without end cover to show cooling fan. In TEFC motors, interior heat losses are dissipated indirectly through enclosure fins, mostly by forced air convection. Cutaway view through stator of TEFC induction motor, showing rotor with internal air circulation vanes. Many such motors have a symmetric armature, and the frame may be reversed to place the electrical connection box (not shown) on the opposite side. An induction motor or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. [1] An induction motor can therefore be made without electrical connections to the rotor. [a] An induction motor's rotor can be either wound type or squirrel-cage type. Three-phase squirrel-cage induction motors are widely used as industrial drives because they are ...