LABARI

Maballin layin da aka tsara (MCCB) wani nau'in kayan kariya ne na lantarki wanda ake amfani dashi don kare kewayen lantarki daga halin da yake wucewa, wanda zai iya haifar da nauyi ko gajeren hanya. Tare da kimantawa ta yanzu har zuwa 1600A, ana iya amfani da MCCBs don kewayon tsawaitawa da yawa tare da saitunan tafiya mai daidaitacce. Ana amfani da waɗannan maɓuɓɓugan maimakon ƙananan masu zagayawa (MCBs) a cikin manyan sifofin PV don keɓe tsarin da dalilai na kariya.

Yadda MCCB ke aiki

MCCB tana amfani da na'urar tsinkayen zafin jiki (yanayin zafi) tare da na'urar electromagnetic mai matuqar tasiri (magnetic element) don samar da hanyar tafiya don kariya da kuma keɓancewa. Wannan yana bawa MCCB damar samarwa:
• Kariya akan obalo,
• Kariyar Laifin Lantarki game da gaggan hanyoyin kewaye
• Canjin lantarki don cire haɗin.

Kariya ta wuce gona da iri

Ana ba da kariya ta wuce gona da iri ta MCCB ta ɓangaren da ke kula da yanayin zafin jiki. Wannan haɗin shine ainihin lambar sadarwa ta bimetallic: lambar sadarwar da ta ƙunshi ƙarfe biyu waɗanda suke faɗaɗa a matakai daban-daban lokacin da aka fallasa su da zazzabi mai zafi. Yayin yanayin yanayin aiki na yau da kullun, lambar sadarwar bimetallic za ta ba da damar wutar lantarki ta gudana ta cikin MCCB. Lokacin da halin yanzu ya wuce darajar tafiya, lambar sadarwar bimetallic zata fara zafi da lankwasawa saboda bambancin yanayin zafi na fadada zafin a cikin lamba. Daga ƙarshe, lambar sadarwar za ta lanƙwasa har ta kai ga turawa sandar tafiya ta jiki da kuma buɗe lambobin, haifar da katse hanyar.

Kariyar zafin jiki na MCCB yawanci yakan sami jinkirin lokaci don ba da damar ɗan gajeren lokaci na wuce gona da iri wanda galibi ana ganin sa a wasu ayyukan na'urar, kamar su ruwan inrush da ake gani lokacin fara injin. Wannan jinkirin lokacin yana bawa da'irar damar ci gaba da aiki a cikin waɗannan halayen ba tare da faɗuwa da MCCB ba.

Kariyar Laifi na Lantarki game da gaggan hanyoyin kewaye

MCCBs suna ba da amsa kai tsaye ga wani ɗan gajeren lahani, bisa tsarin electromagnetism. MCCB yana ƙunshe da keɓaɓɓen kera wanda ke haifar da ƙaramin filin maganadisun lantarki yayin da halin yanzu ya wuce ta cikin MCCB. A yayin aiki na yau da kullun, na'urar maganadisun da kera murfin solonoid ba abin kulawa bane. Koyaya, idan ɗan gajeren lahani ya auku a cikin da'irar, babban halin yanzu zai fara gudana ta cikin ƙarancin lantarki kuma, sakamakon haka, an kafa filin lantarki mai ƙarfi wanda ke jan hankalin sandar tafiya kuma ya buɗe lambobin.

Canja wutar lantarki don cire haɗin

Baya ga abubuwan birgewa, ana iya amfani da MCCBs azaman sauya haɗin cirewar hannu idan akwai gaggawa ko ayyukan kulawa. Ana iya ƙirƙirar baka lokacin da lambar ta buɗe. Don magance wannan, MCCBs suna da hanyoyin watsawa na ciki don kashe baka.

Bayyana MCCB Halaye da atimomi

Ana buƙatar masana'antun MCCB don samar da halayen aiki na MCCB. An bayyana wasu daga cikin sifofin gama gari a ƙasa:
Imar Madaidaicin Yanzu (Inm):
Matsakaicin matsakaici wanda aka ƙaddara MCCB don sarrafawa. Wannan ƙirar da aka ƙayyade a halin yanzu tana ƙayyade iyaka na sama na kewayon daidaitaccen halin yanzu. Wannan ƙimar tana ƙayyade girman firam ɗin fashewa.
Matsayi Na Yanzu (A):
Imar da aka ƙayyade a halin yanzu tana ƙayyade lokacin da MCCB ke tafiya saboda kariyar obalodi. Ana iya daidaita wannan ƙimar, zuwa matsakaiciyar ƙimar firam ɗin yanzu.
Rated Ruwan Ragewa (Ui):
Wannan ƙimar tana nuna matsakaicin ƙarfin wutar lantarki wanda MCCB zai iya tsayayya a cikin yanayin lab. Voltageimar ƙarfin MCCB yawanci ƙasa da wannan ƙimar don samar da gefen aminci.
Rimar Workingimar Aiki (Ue):
Wannan ƙimar shine ƙarfin ƙarfin da aka auna don ci gaba da aiki na MCCB. Yana daidai da ɗaya ko kusa da tsarin ƙarfin lantarki.
Atedimar ƙarfin ƙarfin ƙarfin ƙarfin tsayayye (Uimp):
Wannan ƙimar shine ƙarfin ƙarfin wucewa na ɗan lokaci wanda mai hana kewaya zai iya tsayayya da sauya sauyawa ko walƙiya. Wannan ƙimar tana ƙayyade ikon MCCB don tsayayya da tsauraran matakan wucewa. Matsakaicin girman don gwajin motsa jiki shine 1.2 / 50µs.
Shortarfin Yankan Shortarfin Aiki (Ics):
Wannan shine mafi girman matsalar da MCCB ke iya ɗauka ba tare da lalacewa ta har abada ba. Ana iya sake amfani da MCCBs gaba ɗaya bayan aikin katsewa na kuskure muddin basu wuce wannan ƙimar ba. Mafi girman Ic, shine mafi mahimmancin maɓallin kewaya.
Shortarfin Shortarfin Cirarfafa Shortarshe (Icu):
Wannan shine mafi girman kuskuren halin da MCCB zata iya ɗauka dashi. Idan kuskuren yanzu ya zarce wannan ƙimar, MCCB ba zata iya tafiya ba. A cikin wannan taron, wata hanyar kariya tare da haɓaka mafi girma dole ne tayi aiki. Wannan yana nuna amincin aiki na MCCB. Yana da mahimmanci a lura cewa idan kuskuren halin yanzu ya wuce Ics amma bai wuce Icu ba, MCCB na iya cire kuskuren, amma yana iya lalacewa kuma yana buƙatar sauyawa.
Rayuwa ta Injiniya: Wannan shine adadi mafi yawan lokutan da MCCB zata iya aiki da hannu kafin ta gaza.
Rayuwar Lantarki: Wannan shine adadi mafi yawa na lokacin da MCCB zai iya tafiya kafin ya gaza.

Sizing MCCB

MCCBs a cikin da'irar lantarki yakamata a daidaita su gwargwadon yanayin aikin da ake tsammani kuma mai yuwuwa mara kyau. Manufofin guda uku yayin zabar MCCB sune:
• voltagearfin aikin da aka ƙaddara (Ue) na MCCB ya zama daidai yake da tsarin lantarki.
• Ya kamata a daidaita darajar tafiya ta MCCB gwargwadon yadda aka ɗora ta yanzu.
• Thearfin ƙarfin MCCB dole ne ya kasance sama da ƙididdigar yiwuwar kuskuren igiyar ruwa.

Ire-iren MCCB

Hoto 1: Hanyar tafiya irin B, C, da D MCCBs

MCCB Kulawa

MCCBs suna fuskantar manyan raƙuman ruwa; saboda haka kiyaye MCCBs yana da mahimmanci don aiki mai amintacce. Wasu daga cikin hanyoyin kulawa ana tattauna su a ƙasa:

1. Duba Kayayyaki
Yayin duba MCCB na gani, yana da mahimmanci a kula da lalatattun abokan hulɗa ko fasa cikin ɗakunan ajiya ko rufi. Duk wani alamar ƙonawa akan hulɗa ko casing ya kamata a kula dashi da taka tsan-tsan.

2. Man shafawa
Wasu MCCBs suna buƙatar wadatar man shafawa don tabbatar da sassaucin aiki na sauya haɗin cirewar hannu da sassan motsi na ciki.

3. Tsaftacewa
Dirtarin datti akan MCCB zai iya lalata abubuwan MCCB. Idan datti ya haɗa da duk wani abu mai gudanarwa yana iya ƙirƙirar hanya don halin yanzu kuma zai haifar da lahani na ciki.

4. Gwaji
Akwai manyan gwaje-gwaje guda uku waɗanda ake aiwatarwa azaman ɓangare na tsarin kulawa na MCCB.
Gwajin juriya:
Ya kamata a gudanar da gwaje-gwaje don MCCB ta hanyar cire haɗin MCCB da kuma gwada rufin tsakanin matakan da ƙetaren tashoshin samarwa da ɗora kaya. Idan juriya mai ɗaukar nauyi da aka auna tayi ƙasa da ƙimar juriya mai ƙera maƙerin masana'anta to MCCB ba za ta iya ba da isasshen kariya ba.

Saduwa da Saduwa
Ana gudanar da wannan gwajin ta hanyar gwada juriya na abokan huldar lantarki. Comparedimar da aka auna an kwatanta shi da ƙimar da mai ƙera ya bayyana. A karkashin yanayin aiki na yau da kullun, juriya ta tuntuɓe kaɗan tunda MCCBs dole ne su ba da izinin aiki ta yanzu tare da ƙananan asara.

Gwajin gwaji
Ana gudanar da wannan gwajin ta hanyar gwada martanin MCCB a ƙarƙashin yanayin wuce gona da iri. Ana gwada kariyar zafi ta MCCB ta hanyar gudanar da babban aiki ta hanyar MCCB (300% na ƙimar da aka ƙimanta). Idan mai warwarewa ya kasa tafiya, to alama ce ta gazawar kariyar zafin jiki. Gwajin don kariya ta maganadisu ana gudanar dashi ta hanyan gajeren bugun jini na babban yanayi. A karkashin yanayi na yau da kullun, kariyar maganadisu nan take. Yakamata a gudanar da wannan gwajin a karshen yayin da karfin ruwa ke kara zafin zafin lambobi da rufi, kuma wannan na iya canza sakamakon wasu gwaje-gwajen biyu.

Kammalawa
Zabin da ya dace da MCCBs don aikace-aikacen da ake buƙata shine mabuɗin don samar da isasshen kariya a shafuka tare da kayan aiki masu ƙarfi. Hakanan yana da mahimmanci don aiwatar da ayyukan kiyayewa a lokaci na lokaci kuma kowane lokaci bayan an kunna hanyoyin tafiya don tabbatar da amincin shafin.