Yimiphi imisebenzi yezixhumi ze-AC?

Isingeniso somsebenzi we-AC contactor:

IIsixhumi se-ACiyisici sokulawula esimaphakathi, futhi inzuzo yayo ukuthi ingavula futhi ivale umugqa kaningi, futhi ilawule umsinga omkhulu ngomsinga omncane. Ukusebenza nge-relay eshisayo nakho kungadlala indima ethile yokuvikela ukugcwala ngokweqile kwempahla yokulayisha. Ngenxa yokuthi isebenza futhi ivaliwe ngokumunca insimu ye-electromagnetic, isebenza kahle kakhulu futhi iguquguquka kakhulu kunesekhethi yokuvula nokuvala okwenziwa ngesandla. Ingakwazi ukuvula nokuvala imigqa eminingi yokulayisha ngesikhathi esisodwa. Iphinde ibe nomsebenzi wokuzikhiya. Ngemuva kokuthi ukuncela kuvaliwe, kungangena esimweni sokuzikhiya futhi kuqhubeke nokusebenza. Izixhumi ze-AC zisetshenziswa kabanzi njengamasekhethi okunqamula amandla nokulawula.

Isixhumi se-AC sisebenzisa othintana naye oyinhloko ukuvula nokuvala isekethe, futhi sisebenzisa oxhumana naye osizayo ukuze akhiphe umyalo wokulawula. Othintana nabo abakhulu ngokuvamile banoxhumana nabo abavame ukuvuleka kuphela, kuyilapho abathintwayo abasizayo bavame ukuba namapheya amabili othintana nabo abanemisebenzi evamise evulekile futhi evalekile. Ama-contacters amancane nawo avame ukusetshenziswa njengama-relay aphakathi nendawo ngokuhambisana nesekethe enkulu. Othintana nabo be-AC contactor benziwa nge-silver-tungsten alloy, ene-conductivity kagesi enhle kanye nokumelana nokushisa okuphezulu kwe-ablation. Amandla esenzo weIsixhumi se-ACiphuma ku-AC kazibuthe. Uzibuthe we-electromagnetic wakhiwe ngamashidi ensimbi amabili “entaba” amise okwentaba, elilodwa lawo lilungisiwe, bese kufakwa ikhoyili kuwo. Kunama-voltage ahlukahlukene wokusebenza ongakhetha kuwo. Ukuze kuzinziswe amandla kazibuthe, indandatho ye-short-circuit yengezwa endaweni yokuncela ye-iron core. Ngemuva kokuthi isixhumi se-AC siphelelwe amandla, sincika entwasahlobo ukuthi sibuye.

Enye ingxenye iwumgogodla wensimbi ogudlukayo, onesakhiwo esifanayo nensimbi engaguquki, futhi isetshenziselwa ukushayela ukuvulwa nokuvalwa kokuxhumana okuyinhloko kanye nokuxhumana okuwusizo. I-contactor engaphezu kwama-amps angu-20 ifakwe isembozo sokucisha i-arc, esebenzisa amandla kazibuthe kagesi akhiqizwa lapho isekethe inqanyulwa ukuze ikhiphe ngokushesha i-arc ukuvikela abathintwayo. IIsixhumi se-ACyenziwa iyonke, futhi ukuma nokusebenza kuhlale kuthuthuka, kodwa umsebenzi uhlala unjalo. Kungakhathaliseki ukuthi ubuchwepheshe buthuthuke kangakanani, i-AC contactor evamile isenayo indawo yayo ebalulekile.