Ukukhethwa kwabafowunelwa kuya kuqhutywa ngokuhambelana neemfuno zezixhobo ezilawulwayo.Ngaphandle kokuba i-voltage elinganisiweyo yokusebenza iya kufana ne-voltage elinganisiweyo yesixhobo esihlawuliswayo, isantya somthwalo, udidi lokusetyenziswa, ubuninzi bokusebenza, ubomi bokusebenza, imo yofakelo, ubungakanani kunye noqoqosho lwesixhobo esihlawuliswayo sisiseko sokukhethwa.
Abanxibelelanisi basetyenziswa kuthotho kunye nokuhambelana
Kukho izixhobo ezininzi zombane ezinomthwalo wesigaba esisodwa kwaye, ngoko ke, izibonda ezininzi ze-multipole contactors zingasetyenziswa ngokufana.Njengesithando sokumelana nesithando somlilo, i-welding transformer, njl.Xa isetyenziswe ngokufanayo, i-contactor encinci yamandla ingakhethwa. Nangona kunjalo, kufuneka kuqatshelwe ukuba ukufudumeza kwangoku okuvunyelweneyo kwe-contactor emva kokuhambelana akuhambelani ngokupheleleyo nenani leepali ezihambelanayo. Oku kungenxa yokuba amaxabiso okumelana ne-active, i-static contact loop isenokungafani ngokupheleleyo, ukuze ikhoyo ngoku ejikelezayo nge-positive ayisasazwanga ngokulinganayo.Ngoko ke, i-current inokunyusa kuphela kwi-1.8 ngamaxesha ngokuhambelanayo, kwaye emva kokuba izibonda ezintathu zihambelana, i-current inganyuswa kuphela kwi-2 ukuya ku-2.4 amaxesha.
Ukongezelela, kufuneka kucaciswe ukuba ngenxa yokuba abafowunelwa beepalini abanakuxhunywa kwaye banqanyulwe ngexesha elifanayo emva kokuhambelana, ukuxhamla kunye nokwahlula amandla akukwazi ukuphuculwa.
Ngamanye amaxesha, izibonda ezininzi ze-contactor zingasetyenziselwa uchungechunge, ngenxa yokunyuka kwekhefu lokudibanisa kunokwahlula i-arc ibe ngamacandelo amaninzi, ukuphucula i-arc yokucima amandla, kunye nokukhawuleza ukucima i-arc.Ngoko ke, izibonda ezininzi zinokunyuswa series, kodwa ayikwazi ukugqithisa i-voltage ye-insulation elinganisiweyo ye-contactor.I-heater evunyelweneyo yangoku kunye ne-rated yokusebenza ngoku ye-contactor kwi-series ayiyi kutshintsha.
Iziphumo zonikezelo lwamandla rhoqo
Kwisekethe ephambili, ukutshintshwa kwefrikhwensi kuchaphazela umphumo wesikhumba, kwaye umphumo wesikhumba uyanda kwi-frequency ephezulu.Kwiimveliso ezininzi, i-50 kunye ne-60 Hz inempembelelo enkulu ekunyukeni kweqondo lokushisa kwesiphaluka se-conductive.Nangona kunjalo, kwikhoyili yokukhanga, ingqalelo kufuneka ihlawulwe.Uyilo lwe-50 H luya kunciphisa ukujikeleza kwamagnetic kumgca we-electromagnetic kwi-60 Hz, kwaye ukufunxa kuya kuncitshiswa.Ingaba ukusetyenziswa kuxhomekeke kumda wokuyila kwayo. Ngokubanzi, umsebenzisi ungcono ukuyisebenzisa ngokwexabiso layo lokulinganisa kunye nomyalelo ngokuhambelana nokusebenza kwamandla okusebenza.
Iziphumo zefrikhwensi yokusebenza
Inani lemijikelezo yokusebenza yeyure yabafowunelwa inempembelelo enkulu ekulahlekeni kokutshiswa kwabafowunelwa, ngoko kufuneka kuqwalaselwe ingqalelo ekukhethweni.I-frequency yokusebenza esebenzayo inikezelwa kwiiparameters zobuchwepheshe ze-contactors.Xa i-frequency yangempela yokusebenza kwezixhobo zombane iphezulu kunexabiso elinikeziweyo, i-contactor kufuneka inciphise ixabiso elincitshisiweyo.
Ukukhethwa kwee-AC zoqhagamshelwano zokulawula izixhobo zombane ezishushu
Olu hlobo lwezixhobo luneziko lokumelana, i-heater elawula ubushushu, njl njl. Uluhlu lwangoku lokuguquguquka komthwalo onjalo luncinci kakhulu, oluyi-AC-1 ngokodidi lokusetyenziswa.Umnxibelelanisi unokulawula umthwalo onjalo ngokulula, kwaye umsebenzi awukho rhoqo.Ngoko ke, xa ukhetha umnxibelelanisi, ngokude nje ukuba ubushushu obuvunyelweneyo be-Ith ye-contactor bulingana okanye bungaphezulu kwe-1.2 amaxesha asebenzayo ombane we-thermal equipment. Umzekelo 1: I-contactor ikhethiwe ukulawula i-380V kunye ne-15KW isigaba sesithathu se-Y-shaped HW.Solution: kuqala ukubala ukulinganisa okusebenzayo ngoku Ie yesigaba ngasinye.I-Ith=1.2Ie=1.2×22.7=27.2A ngoko ukhetha naluphi na uhlobo of contactor kunye nobushushu obuvunyelweneyo ngoku Ith≥27.2A.Umzekelo: CJ20-25, CJX2-18, CJX1-22, CJX5-22 kunye nezinye iimodeli.
Lawula ukhetho lwabafowunelwa bezixhobo zokukhanyisa
Kukho iintlobo ezininzi zezixhobo zokukhanyisa, iintlobo ezahlukeneyo zezixhobo zokukhanyisa, ukuqala okwangoku kunye nexesha lokuqala likwahlukile.Imithwalo enjalo isebenzisa udidi lwe-AC-5a okanye i-AC-5b.Ukuba ixesha lokuqala lifutshane kakhulu, ukufudumeza okuvunyelweneyo ngoku i-Ith kuyalingana. ukuya ku-1.1 amaxesha okusebenza ngoku kwesixhobo sokukhanyisa, oko kukuthi.Ukuba ixesha lokuqalisa lide kancinane kwaye umlinganiselo wesantya uphantsi, ubushushu obuvunyelweneyo bukhulu kunokusebenza ngoku kwesixhobo sokukhanyisa, bhekisa kwiThebhile 1. Itheyibhile 1 Umgaqo-nkqubo wokuKhetha we-contactor yokulawula izixhobo zokukhanyisa No. unikezelo lwamandla i-COS isiqalo ixesha min contactor umgaqo wokukhetha
Ixesha lokuposa: Mar-01-2022
