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Bincike na Bayanan Tashin Gaba don Samunin Motanin Masu Yawa na Kasuwanci
A vacuum contactor ya yi aiki mai mahallin gaba na samunin kuma — ya shigar da aikin tashin gaba na yawa wanda ba circuit breaker zai iya gudunawa a matsayin gaba na yawa ba saboda yana ƙara gaba na yawa. A cikin hali muna da circuit breaker wanda aka sanya domin fuskantar halin gaba, tashin gaba ana sanyar da ita don samunin da ke nufi: miliyon an samunin kuma a karamin samunin da aka bayani, daga uku da dubu an samunin kuma na yawa, kuma yadda zai iya tashin gaba kuma kuma da samunin mota na yawa kuma ba ta gudunawa a matsayin gaba ba.
Suku fasahar wadanda suka bayani vacuum contactor kudin ƙarfi na bayanin aplikeshin suka ƙare kudin ƙarfi mai amfani (Ie), kudin ƙarfi mai amfani (Ue), kudin ƙarfi na elektriku a cikin shakawa na amfani, da kudin ƙarfi na makin. Wadannan suna yin aiki da dukkanai da sauran su a yadda suka nufi wani contactor zai iya aiki da kyau a cikin shekara 10 ko zai gaskiya a cikin shekara 1.
Kudin ƙarfi mai amfani da shakawarun amfani
Yadda AC-3 da AC-4 suna canzawa tsari na ayyukan contactor
IEC 60947-4-1 ta bayyana shakawarun amfani wanda suka bayyana abin da contactor ya kamata ya yi. AC-3 ya kare yin hanyar sarki na motor na squirrel-cage da kuma yin cuta a lokacin yin aiki — contactor ya kamata ya buƙata kudin ƙarfi na motor da aka bayyana kuma ya kare kudin ƙarfi na motor da aka bayyana. AC-4 ya kare yin cuta da yin kuskure wanda contactor ya kamata ya buƙata da ya kare kudin ƙarfi da aka bayyana shugaban kuma ya yi kamar yadda ake yi.
A vacuum contactor ana iya amfani da wannan mai tuntuɓar a ƙarƙashin aikin AC-4 don 250 A kawai saboda babban halin yanzu yayin karya yana hanzarta lalata tuntuɓar. Zaɓin aiki na AC-4 lokacin da aikace-aikacen ya ƙunshi sau da yawa baya ko gudu yana hana ƙananan girman. Masu tuntuɓar injin daga masana'antun kamar Hongxin Intelligent Technology suna bayyana duka nau'ikan AC-3 da AC-4 don tallafawa zaɓi mai kyau.
Ƙarfin Wutar Lantarki da Ƙarƙashin Rayuwa
Kowane contactor yana da buga lantarki jimiri kwana nuna yawan ayyukan cimma versus katsewa halin yanzu. A halin yanzu aiki halin yanzu (Ie), wani misali masana'antu vacuum contactor ya cimma 250,000 zuwa 1,000,000 aiki. A 25% na na musamman ga ƙananan motoci ƙarfin zai iya shimfiɗa zuwa 3 zuwa 5 miliyan aiki.
Contact lalacewa faruwa da farko a lokacin karya a lokacin da baka canja wurin lamba abu daga daya surface zuwa wani. Masu katsewa na iska suna rage wannan lalacewar saboda plasma na ƙarfe na ƙarfe yana sake haɗuwa da yawa a kan abubuwan tuntuɓar maimakon watsawa cikin yanayin rufi. Duk da haka, har ma da hulɗar da ke cikin iska yana da iyakacin kauri, kuma alamar lalacewa alamar gani ko ma'aunin ma'aunin wutar lantarki yana samar da hanyar da za a dogara da ita don tantance rayuwar da ta rage.
An Sake Gyara Wurin Yin Karfe a Arewacin Indiya
Wani masana'antar yin kwalliya a Punjab, Indiya, ta fuskanci gazawar tuntuɓar tuntuɓar a kan mai ciyar da motar sa. Motar 315 kW ta fara sau 40 zuwa 50 a kowace canji da kyau cikin yankin AC-4 saboda sau da yawa baya tsakanin wucewa. Masu tuntuɓar iska na yau da kullun sun daɗe kimanin watanni uku kafin a maye gurbin alamun tuntuɓar, wanda ya sa masana'antar ta kashe kusan awanni 12 na lokacin aiki a kowane lokacin lalacewa.
Kwallon elektriko na mill, ta kara gani da inginirin Hongxin Intelligent Technology, ya sa wani ƙarfi na air-break da 400 A vacuum contactor wani ƙarfi mai amfani ga AC-4 da 315 A. Tsarin vacuum interrupter ya kare tsanen kuma yana da shi daga karamin karama. Bayan 18 mizani da ƙayyadaddun 35,000 karama, wani ƙarfi ya nuna karama mai yawa bayan ya yi amfani da gauge na karama na ajiye. Kullum kuma ya taka cikin ƙoƙarin kuma yana da ƙarfin 3% kafin sannan — ba daga abin ƙarfi amma daga karama mai yawa.
Karama na Karama da Tsarin Coil
Tsarin coil na wani ƙarfi yana nuna yadda yike zai iya karama. Tsarin coil na DC mai amfani da tsarin economizer suna ba da damar karama kamar 1,200 karama kafin sa’a a cikin karama mai yawa. Tsarin coil na DC mai yawa da tsarin elektronik suna ba da damar karama kamar 3,000 karama kafin sa’a — wanda ke da kyau ga karama na bank na capacitor a tsarin karama na factor na amfanin kuma wanda ke da kyau ga tsarin karama na inrush current kuma yana da kyau ga karama na karama na karama.
Koila ta kafa kuma yana ƙarƙashin ƙarƙashin fuskantar da ke aiki. A vacuum contactor koila ta ci gaba daya ƙananan kari ne akan taka — ta hanyar umummiya 3 zuwa 5 ta kari na aiki na daga cikin koila — kuma idan jirgin ya ƙare ba ta fuskantar ba saboda dusti ko kari na aiki, koila zai tsayi a cikin halin kari mai yawa kuma zai kafa kuma a cikin minti. Koilin elektronik da suka nemo wurin jirgin kuma suka canza zuwa kari na aiki domin kari na daga cikin koila yayi amfani da wannan kuma ba za su iya kafa kuma ba.
Masu Sabon Gaskiya
Yaya ƙarƙashin ƙarƙashin da kari na kariya da ƙarƙashin kari na kariya?
Ƙarƙashin ƙarƙashin shine kari na kariya wanda kontaktor zai iya kara shi ba tare da kari na kariya — ta hanyar umummiya 10 ta kari na aiki na AC-3. Ƙarƙashin kari na kariya shine kari na kariya wanda zai iya karewa. Kontaktorin vakuum suna da ƙarƙashin ƙarƙashin mai yawa don ƙarƙashin kari na kariya saboda kara shi a cikin kari na kariya yana bukatar jirgin su ka yi amfani da kari na kariya na kari na kariya ba tare da kari na kariya ba.
Yaya kontaktorin vakuum ya faru da kontaktorin air-break?
Masu tuntuɓar injin suna rufe lambobin sadarwa a cikin wani murfin murfin injin, kawar da buɗewar buɗewa gaba ɗaya. Wannan yana ba da tsawon rayuwar lantarki (sau 3 zuwa 5 na kwatankwacin ƙirar iska), ƙarancin haɗarin walƙiya ta waje, aiki mai shuru, kuma babu buƙatar kula da tsalle-tsalle na baka. The musayar ne mafi girma farko kudin da ya fi girma jiki size ga wannan halin yanzu rating. Hongxin fasaha fasaha samar da duka biyu injin da iska-break contactor mafita.
Shin masu tuntuɓar injin zasu iya canza kaya na DC?
Masu tuntuɓar injin an tsara su da farko don sauyawar AC saboda halin yanzu na AC yana wucewa ta hanyar sifili sau biyu a kowane zagaye, yana taimakawa kashewar baka. DC ba shi da sifili na yau da kullun, don haka ana buƙatar masu tuntuɓar DC na musamman tare da madaurin bugun magnetic ko sauyawar yanayin daskararru. Amfani da wani AC-rated injin lamba a DC iya haifar da gazawar katsewa.
Wace irin kulawa ce masu tuntuɓar injin ke bukata?
Koƙarin kuma aikin ƙarfi na vacuum, ƙoƙarin kuma yadda aka yi amfani da su, ƙoƙarin kuma ƙarfin coil, da kuma kuma aikin lubrication na mechanical linkage suna zama wani muhimman aikin kuma aikin koyon. Vacuum contactors ba su buƙatar kuma aikin cleaning na arc chute, ba su buƙatar kuma aikin sauya na contact tip yayi har abin da suka shiga kamar yadda aka bayyana a cikin electrical life, da kuma ba su buƙatar kuma aikin sauya na insulating medium — wanda ya haɗa kuma aikin koyon har zuwa yadda aka haɗa kuma aikin koyon na air-break.
Yaya za na zaɓe tsakanin circuit breaker da contactor?
Amfani da contactor idan aikin yana buƙatar kuma aikin switching wanda ya daga cikin yadda aka yi — mota suka ci gaba da kuma aikin switching wanda ya daga cikin 10 kafin rana, kuma aikin switching na capacitor bank, ko kuma aikin control na heater. Amfani da circuit breaker idan aikin fault protection shine mafi muhimmin aiki kuma aikin switching shine mafi yawa. A cikin motor starter combinations, contactor ya ci gaba da aikin operational switching yayi kuma fuse ko circuit breaker a cikin kuma aikin upstream ya ci gaba da short-circuit protection.
Wane kuma aikin coil voltage suka kashe?
Kumaɗi na yadda ake amfani da su a matsayin ƙananan kumaɗi suna haɗawa da 24 V DC, 48 V DC, 110 V DC, 220 V DC, 110 V AC, da 230 V AC. Kumaɗi na DC suka ƙara da alama na elektronik suna aiki da kyau a cikin saita na zamanin yanzu saboda suka tsoro shi na AC, suka baka fahimta na kumaɗi mai yawa (±15% don haka da ±10% don AC), da suka ba da imkanin kumaɗi na kariya ta gaba daga kumaɗi na yadda mai zali da 200 ms ba suka ƙare ba.