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a contactor opens

См. также в других словарях:

  • Contactor — AC contactor for pump application. In semiconductor testing, contactor can also refer to the specialised socket that connects the device under test. In process industries a contactor is a vessel where two streams interact, for example, air and… …   Wikipedia

  • Relay — 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… …   Wikipedia

  • Motor 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,… …   Wikipedia

  • Magnetic starter — A magnetic starter is an electromagnetically operated switch which provides a safe method for starting an electric motor with a large load. Magnetic starters also provide overload protection and an automatic cutoff in the event of a power failure …   Wikipedia

  • Tram controls — The following article describes the controls on electric, rather than steam trams.OverviewThe operation of trams is relatively simple. As trams run on rails, they do not require steering controls. However they do require controls for the smooth… …   Wikipedia

  • Direct on line starter — A direct on line starter, often abbreviated DOL starter, is a widely used starting method of electric motors. The term is used in electrical engineering and associated with electric motors. There are many types of motor starters, the simplest of… …   Wikipedia

  • electromagnet — /i lek troh mag nit/, n. a device consisting of an iron or steel core that is magnetized by electric current in a coil that surrounds it. [1815 25; ELECTRO + MAGNET] * * * Device consisting of a core of magnetic material such as iron, surrounded… …   Universalium

  • Cleaning card — A cleaning card is a card which is developed for the cleaning of different types of card readers which are needed for payment and authorisation transaction. All in one there are two types of card readers: the tip reader and the motorized reader.… …   Wikipedia

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