Me kana shi ne? Wani relay shine wani wurin da ake amfani da ita wajen gudanar da abubuwa da ya kamata suka faru ko ba ta faru. A cikin tattalin karamin zafi, ana iya amfani da ita don ci gaban ruwa, tsakiyar zafi, ko kuma sauran abubuwa masu inganci. Tun daga haka, ana iya amfani da relay a cikin manyan tattalin ƙarfafin kai, musamman a cikin tattalin karamin zafi, kontrollofin jirgin sama, da sauransu.

Relay wani ma yake?

Tsari: Relay ita ce kayan aiki da ke bude ko kwallaye masu sauki don haka in yi abin daɗiwa a cikin tushen kontrolar ta shakata. Yana nuna halitta ba da zai da kyau a wurin da aka sanya, kuma yana bayar da amfani ga breaker domin ya kwallaye wurin da aka sanya. Hakan na taimaka wajen inganta tushen.

Yadda Aiki Yake Relay

Aiki yake a kan tsarin jin dadin magana. Idan circuit ta relay yana nufin current na gaskiya, yana kasance jin dadin magnetic field wanda yake shiga temporary magnetic field.

Magnetic field na yi abin daɗiwa a armature ta relay, kafin yake bude ko kwallaye connections. Relay na biyu-power yana da shi ne kawai set mai sauki, amma relay na takam-power yana da biyu sets mai sauki don kwallaye switch.

Tsanar da na relay an fi sani a kan wannan rubutun. Ana samu iron core da ake koye control coil a kusa. Ana bayar da power zuwa coil tun daga contacts da load da control switch. Idan current yana haɗuwar zuwa coil, ana shigo magnetic field a kusa.

Ta hanyar haka, maza uku na magnet yana karɓar maza tasa, don haka yake kwallaye circuit da kuma in yara current zuwa load. Idan contacts suna kwallaye, yawancin aiki yana zama na ƙarshe, kafin yake bude contacts.

Pole da Throw
Pole da throw sun nufin configurations na relay. A nan, pole yana nufin switch, kuma throw yana nufin adadin connections. Single-pole, single-throw relay ce mai sauƙi, da kawai switch da kawai connection. Duk da haka, single-pole double-throw relay yana da kawai switch amma biyu options da za su iya kula.

Bini da Relay
Relay yana aiki a kan electrical da mechanical. An samu electromagnetic part da sets mai sauki wanda suke yi abin daɗiwa. Bini da relay yana iya kula a kan biyar groups: contacts, bearings, electromechanical design, da terminations da housing.

Contacts – Contacts suna da muhimmanci sosai a cikin relay saboda suke tabbatar da amanar. Contacts na biyu-quality sun bayar da low contact resistance da reduced contact wear. Zabiya material mai contact yana bangare da wasu abubuwa, kamar nature na current da za su iya rufe, magnitude na interrupting current, frequency na aiki, da voltage.

Bearings – Bearings suna da kungiyoyi, ciki har da single-ball, multi-ball, pivot-ball, da jewel bearings. Single-ball bearing ana amfani da shi a cikin applications wadanda suka bukata high sensitivity da low friction. Amma, multi-ball bearings sun bayar da low friction da greater resistance to shock.

Electromechanical Design – Electromechanical design yana kafto design na magnetic circuit da mechanical attachment na core, yoke, da armature. Don in yanka efficiency na circuit, reluctance na magnetic path yana ci gaba. Electromagnet yana da soft iron, kuma current na coil yana da 5A, da voltage na coil yana da 220V.

Terminations and Housing – Assembly na armature da magnet da base yana da shi ne a kan spring. Spring yana da insulation da armature tun daga moulded blocks, wanda suke tabbatar da dimensional stability. Fixed contacts suna da spot-welded onto terminal link.