Okuqukethwe okuyisisekelo kwe-voltage ephansi ye-AC contactor

I-Contactor iyithuluzi elishintshayo elizenzakalelayo elisetshenziselwa ukuvula noma ukuvala ngokuvamile amasekhethi amanje aphezulu njengamasekhethi amakhulu e-AC kanye ne-DC kanye namasekhethi okulawula umthamo omkhulu.Mayelana nomsebenzi, ngaphezu kokushintsha okuzenzakalelayo, i-contactor iphinde ibe nomsebenzi wokusebenza kude kanye nokulahlekelwa ngumsebenzi wokuvikela i-voltage (noma i-undervoltage) entula i-manual switch, kodwa ayinayo imisebenzi yokuvikela i-overload kanye ne-short circuit circuit. i-low-voltage circuit breaker.
Izinzuzo kanye nezigaba contactors
I-contactor inezinzuzo zemvamisa yokusebenza ephezulu, impilo ende yesevisi, umsebenzi onokwethenjelwa, ukusebenza okuzinzile, izindleko eziphansi, nokugcinwa kalula.Isetshenziswa kakhulu ukulawula amamotho, izinto zokushisisa zikagesi, imishini yokushisela kagesi, amabhange e-capacitor, njll., futhi isetshenziswa kakhulu kumjikelezo wokulawula idrayivu kagesi Enye yezinhlobonhlobo zemishini yokulawula.
Ngokwesimo sesekethe yokuxhumana othintana naye oyinhloko, ihlukaniswe yaba: I-DC contactor kanye ne-AC contactor.
Ngokusho kwendlela yokusebenza, ihlukaniswe yaba: i-electromagnetic contactor kanye ne-contactor kazibuthe unomphela.
Isakhiwo kanye nesimiso sokusebenza se-low voltage AC contactor
Isakhiwo: Isixhumi se-AC sihlanganisa indlela ka-electromagnetic (ikhoyili, umgogodla wensimbi ne-armature), ukuthintana okuyinhloko kanye nesistimu yokucima i-arc, ukuthintana okuyisizayo nentwasahlobo.Othintana nabo abakhulu bahlukaniswe ngabathintwayo bebhuloho kanye nokuxhumana nomunwe ngokuya ngomthamo wabo.Izixhumi ze-AC ezinomshini wamanje ongaphezu kuka-20A zifakwe izembozo zokucima i-arc, kanti ezinye futhi zinamapuleti egridi noma izinto zokucisha i-arc ezivunguzayo;othintana nabo abasizayo Amaphuzu ahlukaniswe othintana nabo abavamise ukuvuleka (abahamba eduze) futhi avamise ukuvaleka (abahambayo bavuleke) abathintwayo, bonke okuyizakhiwo ezinqamuka kabili zohlobo lwebhuloho.Oxhumana naye osizayo unomthamo omncane futhi ngokuyinhloko usetshenziselwa ukuxhuma kumjikelezo wokulawula, futhi ayikho idivayisi yokucima i-arc, ngakho ayikwazi ukusetshenziselwa ukushintsha isifunda esikhulu.Isakhiwo sikhonjiswe esithombeni esingezansi:

Isimiso: Ngemva kokuba ikhoyili ye-electromagnetic mechanism inikwe amandla, i-flux kazibuthe ikhiqizwa kumongo wensimbi, futhi ukukhangwa kwe-electromagnetic kukhiqizwa endaweni ye-armature air gap, okwenza i-armature ivale.Oxhumana naye oyinhloko naye uvaliwe ngaphansi kwedrayivu ye-armature, ngakho-ke isifunda sixhunyiwe.Ngesikhathi esifanayo, i-armature iphinde ishayele oxhumana nabo abasizayo ukuvala othintana nabo abavame ukuvuleka futhi uvule oxhumana nabo abavamise ukuvala.Uma ikhoyili iphelelwa amandla noma i-voltage incipha kakhulu, amandla okumunca ayanyamalala noma abe buthaka, i-armature ivuleka ngaphansi kwesenzo se-spring spring, futhi abathintwayo abakhulu nabasizayo babuyela esimweni sabo sokuqala.Izimpawu zengxenye ngayinye yesixhumi se-AC ziboniswa esithombeni esingezansi:

Amamodeli nezinkomba zobuchwepheshe zama-low-voltage AC contactors
1. Imodeli yesixhumi se-AC esine-voltage ephansi
Oxhumana nabo be-AC abavame ukusetshenziswa abakhiqizwa ezweni lami yi-CJ0, CJ1, CJ10, CJ12, CJ20 nolunye uchungechunge lwemikhiqizo.Ochungechungeni lwemikhiqizo ye-CJ10 ne-CJ12, zonke izingxenye ezithintekile zisebenzisa idivayisi ye-buffer, enciphisa ngokunengqondo ibanga lokuxhumana kanye nokushaywa unhlangothi.Uhlelo lokunyakaza lunokwakheka okunengqondo, isakhiwo esihlangene, nokuxhumeka kwesakhiwo ngaphandle kwezikulufu, ezilungele ukulungiswa.I-CJ30 ingasetshenziselwa ukuxhumana okukude kanye nokuphulwa kwamasekhethi, futhi ilungele ukuqala nokulawula amamotho e-AC njalo.

2. Izinkomba zobuchwepheshe zezixhumi ze-AC ezine-voltage ephansi
⑴I-voltage elinganiselwe: isho i-voltage elinganiselwe kothintana naye oyinhloko.Amabanga asetshenziswa kakhulu yilawa: 220V, 380 V, kanye no-500 V.
⑵Isilinganiso samanje: isho imanje elinganiselwe yoxhumana naye oyinhloko.Amabanga asetshenziswa kakhulu yilawa: 5A, 10A, 20A, 40A, 60A, 100A, 150A, 250A, 400A, 600A.
⑶Amabanga asetshenziswa kakhulu amandla kagesi alinganiselwe wekhoyili yilawa: 36V, 127V, 220V, 380V.
⑷ Isilinganiso sokusebenza esilinganiselwe: ibhekisela enanini loxhumo ngehora.
Umgomo wokukhetha we-low voltage AC contactor
1. Khetha uhlobo lwe-contactor ngokusho kohlobo lomthwalo wamanje kusekethe;
2. I-voltage elinganiselwe ye-contactor kufanele ibe nkulu noma ilingane ne-voltage elinganiselwe yesekethe yomthwalo;
3. I-voltage elinganiselwe yekhoyili ehehayo kufanele ihambisane ne-voltage elinganiselwe yesekethe yokulawula exhunyiwe;
4. Isilinganiso samanje kufanele sibe sikhulu noma silingane nenani elilinganiselwe lesekethe eyinhloko elawulwayo.