Kev xaiv cov contactors yuav tsum tau ua raws li cov kev cai ntawm cov khoom tswj.Tsuas yog tias qhov ntsuas kev ua haujlwm voltage yuav tsum zoo ib yam li qhov ntsuas hluav taws xob ntawm cov khoom siv them, tus nqi thauj khoom, kev siv qeb, kev ua haujlwm zaus, ua haujlwm lub neej, hom kev teeb tsa, qhov loj me thiab kev lag luam ntawm cov khoom siv them nqi yog lub hauv paus rau kev xaiv.
Contactors yog siv nyob rau hauv series thiab parallel
Muaj ntau ntau cov khoom siv hluav taws xob uas yog ib theem loads thiab, yog li ntawd, ob peb tus ncej ntawm multipole contactors yuav siv tau nyob rau hauv parallel.Xws li kuj rauv, vuam transformer, thiab lwm yam.Thaum siv nyob rau hauv parallel, ib tug me me lub peev xwm contactor yuav xaiv tau. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias qhov kev pom zoo cua sov tam sim no ntawm tus contactor tom qab sib npaug zos tsis yog qhov sib npaug ntawm cov ncej nyob rau hauv parallel.Qhov no yog vim qhov tseem ceeb ntawm kev ua haujlwm, zoo li qub kev sib cuag lub voj yuav tsis tas yuav sib npaug, yog li ntawd. Tam sim no ntws los ntawm qhov zoo tsis sib npaug. Yog li ntawd, qhov tam sim no tsuas yog nce mus rau 1.8 npaug ntawm qhov sib npaug, thiab tom qab peb tus ncej yog nyob rau hauv parallel, tam sim no tsuas yog nce mus rau 2 mus rau 2.4 npaug.
Tsis tas li ntawd, nws yuav tsum tau taw qhia tias vim tias cov kab sib txuas ntawm cov ncej tsis tuaj yeem txuas thiab txiav tawm tib lub sijhawm tom qab sib dhos, kev sib txuas thiab kev sib cais tsis tuaj yeem txhim kho.
Qee lub sij hawm, ob peb tus ncej ntawm lub contactor tuaj yeem siv tau rau hauv cov koob, vim qhov kev sib txuas ntawm kev sib tsoo tuaj yeem faib cov arc mus rau ntau ntu, txhim kho lub peev xwm tua hluav taws xob, thiab ua kom cov quenching ntawm arc.Yog li ntawd, ntau tus ncej tuaj yeem nce ntxiv hauv cov khoom siv hluav taws xob. series, tab sis tsis tuaj yeem tshaj qhov ntsuas hluav taws xob hluav taws xob ntawm tus contactor.Qhov pom zoo cua sov tam sim no thiab ntsuas ua haujlwm tam sim no ntawm tus contactor hauv series yuav tsis hloov.
Qhov cuam tshuam ntawm lub zog muab zaus
Rau lub ntsiab Circuit Court, qhov kev hloov ntawm zaus cuam tshuam rau cov nyhuv ntawm daim tawv nqaij, thiab cov nyhuv ntawm daim tawv nqaij nce ntawm qhov zaus.Rau cov khoom lag luam feem ntau, 50 thiab 60 Hz muaj qhov cuam tshuam zoo rau qhov kub thiab txias ntawm cov khoom siv hluav taws xob.Txawm li cas los xij, rau cov coil attraction, yuav tsum tau them nyiaj.50 H tsim yuav txo qhov sib nqus flux ntawm cov kab hluav taws xob ntawm 60 Hz, thiab qhov nqus yuav raug txo.Txawm hais tias kev siv yog nyob ntawm cov npoo ntawm nws cov qauv tsim. Feem ntau, tus neeg siv yog qhov zoo tshaj plaws los siv nws raws li nws cov nqi calibration thiab txiav txim raws li kev khiav hauj lwm lub zog zaus.
Cov teebmeem ntawm kev ua haujlwm zaus
Tus naj npawb ntawm kev khiav hauj lwm ib teev ntawm cov contactors muaj kev cuam tshuam loj heev rau kev kub hnyiab ntawm cov neeg sib cuag, yog li yuav tsum tau them nyiaj rau kev xaiv.Lub sijhawm ua haujlwm siv tau yog muab rau hauv cov kev tsis sib xws ntawm cov contactors.Thaum lub sijhawm ua haujlwm tiag tiag ntawm cov khoom siv hluav taws xob ntau dua li tus nqi muab, tus contactor yuav tsum txo tus nqi txo.
Kev xaiv AC contactors rau kev tswj cov khoom siv hluav taws xob thermal
Cov cuab yeej zoo li no muaj cov cua sov ua kom sov, kub tswj cov cua sov, thiab lwm yam. Qhov kev hloov pauv tam sim no ntawm cov khoom no yog me me, uas belongs rau AC-1 raws li qeb ntawm kev siv.Lub contactor tuaj yeem tswj cov khoom thauj tau yooj yim, thiab kev ua haujlwm tsis tu ncua.Yog li ntawd, thaum xaiv lub contactor, tsuav yog qhov pom zoo cua sov tam sim no Ith ntawm contactor yog sib npaug los yog ntau dua 1.2 npaug ntawm cov khoom siv hluav taws xob ua haujlwm tam sim no. Piv txwv 1: Ib tus contactor raug xaiv los tswj 380V thiab 15KW peb-theem Y-shaped HW.Solution: ua ntej xam cov ntsuas kev khiav hauj lwm tam sim no Ie ntawm txhua theem.The Ith=1.2Ie=1.2×22.7=27.2A yog li xaiv txhua yam ntawm contactor nrog qhov pom zoo thaum tshav kub kub tam sim no Ith≥27.2A.Piv txwv li: CJ20-25, CJX2-18, CJX1-22, CJX5-22 thiab lwm yam qauv.
Tswj kev xaiv cov contactors rau cov khoom siv teeb pom kev zoo
Muaj ntau hom khoom siv teeb pom kev zoo, ntau hom khoom siv teeb pom kev zoo, pib tam sim no thiab lub sijhawm pib kuj sib txawv.Cov khoom siv no siv qeb AC-5a lossis AC-5b.Yog lub sijhawm pib luv luv, qhov pom zoo cua sov tam sim no yog sib npaug. mus rau 1.1 npaug ntawm kev ua haujlwm tam sim no ntawm cov khoom siv teeb pom kev zoo Ie.Yog tias lub sijhawm pib ntev dua me ntsis thiab tus nqi qis dua, qhov kev pom zoo cua sov tam sim no ntau dua qhov ua haujlwm tam sim no ntawm cov khoom siv teeb pom kev zoo, xa mus rau Table 1. Table 1 Kev xaiv txoj cai ntawm contactor rau cov khoom siv teeb pom kev zoo No. Cov khoom siv teeb pom kev zoo pib fais fab mov COS pib lub sij hawm min contactor xaiv txoj cai
Post lub sij hawm: Mar-01-2022
