Menene DC Circuit Breaker?

Wutar lantarki ta DC tana nufin na'urar da aka yi amfani da ita a cikin tsarin rarraba wutar lantarki na DC, wanda zai iya kare kayan lantarki da ke aiki akan wutar lantarki.Gabaɗaya ya dace da samar da wutar lantarki na photovoltaic na hasken rana da tsarin rarraba wutar lantarki, tsarin ajiyar makamashin baturi, da sabon tsarin cajin abin hawa DC.Slocable's solar DC circuit breakersan ƙera su don kare igiyoyin da ke tsakanin kowane rukuni na PV modules da PV inverters daga wuce gona da iri da kuma gajerun da'irori na DC, kuma an shigar da su a cikin shingen kariyar PV na kirtani a ƙarshen kowane kirtani na samfuran PV.

Wurin shigar da wutar lantarki na na'ura mai ba da hanya tsakanin hanyoyin sadarwa na DC tsari ne na halin yanzu kai tsaye.Janar DC da'irori sun haɗa da DC MCB (DC miniature circuit breaker), DC MCCB (DC molded case breaker) da kuma nau'in B RCD (sauran na'urar yanzu).

DC Miniature Circuit Breaker (DC MCB)

An ƙera ƙananan na'urorin da'ira na DC don aikace-aikacen kewayawa na DC don kariyar wuce gona da iri a cikin na'urori ko kayan lantarki.DC mini circuit breakers suna sanye da wani maganadisu na musamman wanda ke tilasta baka cikin ramin baka kuma yana kashe baka cikin kankanin lokaci.

Za'a iya kulle da'irar DC a matsayin KASHE ta hanyar na'urar makulli azaman ma'aunin aminci don wargaza mai inverter PV.Tun da laifin halin yanzu na iya gudana ta gaba da gaba zuwa halin yanzu mai aiki, mai jujjuyawar wutar lantarki na DC zai iya ganowa da hana duk wani kwararar halin yanzu na bidirectional.A kowane hali, ana buƙatar mataki mai sauri a cikin filin don share kuskuren halin yanzu.

Ana amfani da ƙananan na'urorin kewayawa na DC a aikace-aikacen tsarin DC kamar sabon makamashi, hasken rana da tsarin adana makamashin baturi.Halin ƙarfin lantarki na DC mini circuit breaker gabaɗaya DC 12V-1500V.

DC MCB da AC MCB suna da aiki iri ɗaya, babban bambanci shine sigogi na zahiri na samfurin.Haka kuma, yanayin amfani na AC MCB da DC MCB sun bambanta.

Ana yiwa mai katsewar AC alama akan samfurin azaman LOAD da LINE, kuma alamar da'irar DC ana yiwa alama alama akan samfurin a matsayin tabbatacce (+), alamomi (-) da kuma alkibla na yanzu.

Menene Aikin DC Mini Circuit Breakers?

Irin thermal da ka'idodin kariyar maganadisu kamar yadda masu keɓewar AC ke aiki ga ƙananan keɓaɓɓen da'ira na DC:

Kariyar zafi tana tafiye-tafiyen ƙaramin keɓaɓɓen kewayawa na DC lokacin da na yanzu ya wuce ƙimar ƙima.A cikin wannan tsarin kariya, lambobin bimetallic suna faɗaɗa thermally kuma suna tuƙi na'urar keɓewa.Kariyar thermal yana aiki da sauri saboda ana samar da ƙarin zafi don faɗaɗa da buɗe haɗin lantarki lokacin da halin yanzu yayi girma sosai.Kariyar zafi na masu watsewar da'ira na DC yana hana wuce gona da iri fiye da na yau da kullun masu aiki.

Kariyar maganadisu tana tafiya DC MCBs lokacin da ƙaƙƙarfan igiyoyi masu ƙarfi ke nan, kuma amsa koyaushe take nan take.Kamar yadda yake da masu watsewar da'ira na AC, ƙimar da aka ƙididdige ƙarfin da'ira na DC yana wakiltar mafi girman kuskuren halin yanzu wanda za'a iya katsewa.Don ƙaramin mai karɓowa na DC, katange halin yanzu yana dawwama, wanda ke nufin cewa dole ne na'urar ta ƙara buɗe lambobin lantarki don katse matsalar halin yanzu.Kariyar Magnetic na ƙananan na'urorin da'ira na DC yana ba da kariya daga mafi girman kewayon gajerun da'irori da kurakurai fiye da kima.

Me yasa DC Solar Circuit Breakers suke da mahimmanci ga Tsarin PV?

Tsarin photovoltaic yana da yuwuwar zama ingantacciyar hanyar sabunta makamashi.Za a iya amfani da na'urorin hasken rana ɗaya ko fiye, ko kuma a haɗa su ta hanyar amfani da inverter da sauran kayan aikin lantarki da na inji.Dole ne a kiyaye tsarin PV a kowane farashi, kuma kowane ƙaramin abin da ya faru zai iya haɓaka da sauri zuwa babbar matsala ga tsarin gaba ɗaya.

Sabili da haka, masu rarraba hasken rana na DC sune muhimmin ɓangare na tsarin photovoltaic, kuma kariya ta zafi zai iya taimakawa a cikin yanayin da ake ciki na yanzu.Kariyar maganadisu a cikin masu watsewar wutar lantarki na hasken rana na DC na iya tarwatsa na'urar ta hanyar hasken rana yayin da igiyoyin wuta da yawa.Masu watsewar wutar lantarki na DC na iya katse magudanar ruwa ko da a cikin matsanancin yanayi.Kariyar maganadisu tana da mahimmanci a cikin masu fashewar DC kamar yadda yake karewa daga gajerun kewayawa da sauran gazawa.

Masu watsewa na hotovoltaic suna da mahimmanci a cikin tsarin PV na hasken rana.Wurin kewayar hasken rana wani abu ne mai tsada na tsarin photovoltaic.Saboda haka, yana da mahimmanci don kare su tare da na'urar PV ta hasken rana.Hakanan na'urorin kewayawa na PV DC suna kare da'irori da allunan kewayawa.Yana iya juyar da hasken rana zuwa halin yanzu kai tsaye ta hanyar hasken rana, kuma kayan aiki na hoto suna buƙatar amfani da na'urorin kewayawa na PV.

Ga motocin lantarki, ana iya cajin batir ɗin su ta amfani da tashar cajin abin hawa.Don haka waɗannan tsarin suna buƙatar DC MCBs don guje wa haɗari saboda dukkansu suna buƙatar yin amfani da wutar lantarki kai tsaye, hasken rana da motocin lantarki suna aiki tare sosai, sannan kuma ba sa buƙatar canza canjin kai tsaye zuwa alternating current, wanda za'a iya sarrafa shi cikin sauƙi ta atomatik ta amfani da Na'urar fashewar kewayon DC don amsawa da sauri.

Wani Nau'in Mai Rarraba Wutar Wuta na DC - DC Molded Case Breaker (DC MCCB)

Na'urar da'ira da aka ƙera ta DC sun dace don ajiyar makamashi, sufuri da da'irori na DC na masana'antu.An ƙera na'urorin da'ira da aka ƙera don saduwa da mafi girman buƙatun aiki, yayin da akwai na'urorin haɗi iri-iri don dacewa da ƙayyadaddun filin daban-daban.DC MCCBs na yau sun faɗaɗa aikace-aikace don haɗawa da hasken rana photovoltaics, tashoshin cajin abin hawa lantarki, ajiyar baturi da tsarin UPS, da kasuwanci da rarraba wutar lantarki na DC na masana'antu.

DC MCCB yana da aiki iri ɗaya da AC MCCB, kuma yana da fiye da kima da ayyukan kariya na gajere don tsarin rarraba wutar lantarki na yanzu.

Hakanan ana amfani da su a cikin da'irar da ke da ƙarfin baturi mara tushe don ajiyar gaggawa da ƙarfin ajiyar kuɗi.Akwai har zuwa 150A, 750 VDC kuma har zuwa 2000A, 600 VDC.Don masu watsewar da'ira na DC da aka yi amfani da su a cikin tsarin photovoltaic na ƙasa a cikin kayan aikin hasken rana, injiniyan aikace-aikacen da bita suna tabbatar da cewa an cika buƙatun kariya.

DC Molded Case Circuit Breaker shine na'urar kariyar da'ira don ajiyar makamashi, sufuri da da'irori na DC na masana'antu.Ana iya amfani da su zuwa tsarin ƙasa ko maras ƙasa, saduwa da mafi girman ƙarfin lantarki da ƙananan matakan kuskure na yanzu na tsarin hasken rana.Slocable yana ƙera manyan na'urorin da'ira na DC waɗanda ke ba da kyakkyawan aiki da taimakawa rage farashi, Slocable's MCCB DC breakers suna isar da har zuwa 150-800A, 380V-800V DC kuma suna saduwa da ƙayyadaddun ƙa'idodi.

Bambanci Tsakanin AC da DC Circuit Breaker

Babban bambancin dake tsakanin kai tsaye da kuma alternating current shi ne cewa wutar lantarkin da ake fitarwa na kai tsaye yana dawwama.Sabanin haka, fitowar wutar lantarki a cikin musaya na yau da kullun sau da yawa a cikin dakika guda, kuma siginar alternating current yana canza ƙimarsa koyaushe kowane daƙiƙa.Za a kashe baka mai jujjuyawa a 0 V kuma za a kiyaye kewaye daga babban halin yanzu.Amma siginar halin yanzu na DC ba ta canzawa ba, yana aiki a cikin yanayi na dindindin, kuma ƙimar ƙarfin lantarki tana canzawa ne kawai lokacin da kewayawa ke tafiya ko kewaye ta faɗi zuwa wani ƙima.

In ba haka ba, da'irar DC za ta samar da ƙimar wutar lantarki akai-akai na daƙiƙa ɗaya a cikin minti ɗaya.Don haka, ba a ba da shawarar yin amfani da na'urar kewayawa ta AC a cikin jihar DC ba tunda babu maki 0-volt a cikin jihar DC.

Rigakafi Lokacin Siyan Masu Karya Wuta

Saboda hanyoyin kariya na igiyoyin AC da DC kusan iri ɗaya ne, an ƙera takamaiman na'urorin da'ira don amfani da duka biyun.Koyaya, yana da mahimmanci a bincika sau biyu cewa samar da wutar lantarki da na'urar kashe wutar lantarki iri ɗaya ne.Idan ka sanya mai watsewar da'ira mara kuskure, shigarwar ba za ta sami cikakkiyar kariya ba kuma haɗarin lantarki na iya faruwa.

Wani muhimmin al'amari da ya kamata a yi la'akari da shi shi ne ƙimar igiyoyin igiyoyi masu haɗawa da ƙananan na'ura na DC zuwa kayan lantarki masu kariya.Ko da kun saita na'urar ta DC daidai, ƙananan igiyoyin igiyoyi na iya yin zafi, narke rufin su kuma haifar da gazawar lantarki.

Ba a saba amfani da na'urorin da'ira na DC kamar na'urorin da'ira na AC ba, amma suna da mahimmanci.DC MCBs sabuwar fasaha ce, kamar yadda yawancin kayan aikin gida ke gudana akan madafan iko.Masu ba da wutar lantarki na hasken rana DC suna taka muhimmiyar rawa wajen kariyar lantarki na fasahar ceton makamashi mai tsada kamar fitilun LED, hasken rana na photovoltaic, da motocin lantarki.Yayin da waɗannan fasahohin ke isa ga masu amfani da yawa, masu hana hasken rana za su sami kasuwa mafi girma.A daya bangaren kuma, na’urorin da’ira na DC, sanannu ne kuma sanannun fasaha a harkar kasuwanci, kuma suna taka muhimmiyar rawa wajen kare injuna masu inganci da walda.

Lokacin da tsarin wutar lantarki ya buƙaci amfani da na'urar da'ira ta yanzu kai tsaye, galibi ana ba da shawarar a riƙe sabis na ƙwararrun injiniyoyi da masu fasaha don tabbatar da cewa za ku iya zaɓar da shigar da mai wayo na DC mai dacewa.