power-operated switch
31Automobile accessory power — can be produced by several different means. However, it is always ultimately derived from the automobile s internal combustion engine. An engine has one or more devices for converting energy it produces into a usable form, electricity connection… …
32Glanford Power Station — Infobox UK power station static static image caption=Glanford power station, showing condenser in the top left. os grid reference=SE859147 latitude=53.62199 longitude= 0.700364 country=England region=East Midlands shire county=Lincolnshire… …
33Geelong Power Station, Victoria — The city of Geelong, Victoria, Australia was once home to two coal fueled power stations Geelong A and Geelong B. Geelong s electrical supplyThe first moves to providing an electricity supply to Geelong were made in 1898, with three separate… …
34electric switch — ▪ instrument device for opening and closing electrical circuits under normal load conditions, usually operated manually. There are many designs of switches; a common type the toggle, or tumbler, switch is widely used in home lighting and… …
35Trolleybus — A trolleybus (also known as trolley bus, trolley coach, trackless trolley, trackless tram or simply trolley) is an electric bus powered by two overhead wires, from which it draws electricity using two trolley poles. Two poles are required in… …
36Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …
37Relay — This article is about the electrical component. For other uses, see Relay (disambiguation). Automotive style miniature relay, dust cover is taken off A relay is an electrically operated switch. Many relays use an electromagnet to operate a… …
38Electronic component — Various components An electronic component is a basic electronic element and may be available in a discrete form having two or more electrical terminals (or leads). These are intended to be connected together, usually by soldering to a printed… …
39Motor controller — A motor controller is a device or group of devices that serves to govern in some predetermined manner the performance of an electric motor.[1] A motor controller might include a manual or automatic means for starting and stopping the motor,… …
40railroad — /rayl rohd /, n. 1. a permanent road laid with rails, commonly in one or more pairs of continuous lines forming a track or tracks, on which locomotives and cars are run for the transportation of passengers, freight, and mail. 2. an entire system… …
