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- Relay abstract "A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits as amplifiers: they repeated the signal coming in from one circuit and re-transmitted it on another circuit. Relays were used extensively in telephone exchanges and early computers to perform logical operations.A type of relay that can handle the high power required to directly control an electric motor or other loads is called a contactor. Solid-state relays control power circuits with no moving parts, instead using a semiconductor device to perform switching. Relays with calibrated operating characteristics and sometimes multiple operating coils are used to protect electrical circuits from overload or faults; in modern electric power systems these functions are performed by digital instruments still called "protective relays".".
- Relay thumbnail Relay.jpg?width=300.
- Relay wikiPageExternalLink teletype-bulletin-1044-issue-4-1940-11-RY-20-WECO-215A-and-RY-28-WECO215H-and-RY-30-WECO255A.pdf.
- Relay wikiPageExternalLink C0_v4bg_5.pdf.
- Relay wikiPageExternalLink index.html.
- Relay wikiPageExternalLink Interfacing-Relay-to-Microcontroller.html.
- Relay wikiPageExternalLink io_5.html.
- Relay wikiPageExternalLink index.html.
- Relay wikiPageExternalLink article.asp?24.
- Relay wikiPageExternalLink relays_Technical_Write_up.pdf.
- Relay wikiPageExternalLink relays-general-technical-information.html.
- Relay wikiPageID "26590".
- Relay wikiPageRevisionID "606441330".
- Relay hasPhotoCollection Relay.
- Relay subject Category:American_inventions.
- Relay subject Category:Electromagnetic_components.
- Relay subject Category:Power_engineering.
- Relay subject Category:Relay_switches.
- Relay subject Category:Transducers.
- Relay comment "A relay is an electrically operated switch. Many relays use an electromagnet to mechanically operate a switch, but other operating principles are also used, such as solid-state relays. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal.".
- Relay label "Przekaźnik".
- Relay label "Relais électromécanique".
- Relay label "Relais".
- Relay label "Relais".
- Relay label "Relay".
- Relay label "Relè".
- Relay label "Relé".
- Relay label "Relé".
- Relay label "Реле".
- Relay label "مرحل".
- Relay label "継電器".
- Relay label "继电器".
- Relay sameAs Elektromagnetické_relé.
- Relay sameAs Relais.
- Relay sameAs Ηλεκτρονόμος.
- Relay sameAs Relé.
- Relay sameAs Errele.
- Relay sameAs Relais_électromécanique.
- Relay sameAs Relai.
- Relay sameAs Relè.
- Relay sameAs 継電器.
- Relay sameAs 전자계전기.
- Relay sameAs Relais.
- Relay sameAs Przekaźnik.
- Relay sameAs Relé.
- Relay sameAs m.06mjn.
- Relay sameAs Q174053.
- Relay sameAs Q174053.
- Relay wasDerivedFrom Relay?oldid=606441330.
- Relay depiction Relay.jpg.
- Relay isPrimaryTopicOf Relay.
