Me yasa za a girka SCB (gearfafa Circuit Breaker) a ƙarshen ƙarshen SPD (Na'urar Kariyar Tsaro)

Menene SCB?SCB-Kariyar-Circuit-Ubangiji Yesu Kristi kariya

SCB - Karya mai zagayawa ko mai kare SPD

Me yasa SCB?

SCB yayi nasarar warware matsalar duniya game da hauhawar matsalar ƙarancin na'urar kariya.

Amfani da Samfura

  1. Yankewar zaɓin ƙarfin ƙarfin da aka wuce da na yanzu da walƙiya na iya kare SPD da kyau daga gajeren gajere da gajeren gajere na SPD saboda rashin ƙarfi na wuce-wuri, wanda ke haifar da mummunan haɗarin wuta.
  1. Yankin zaɓaɓɓen ƙarfin mitar da aka wuce da na yanzu da walƙiya na iya kare SPD yadda yakamata daga haifar da ƙarfin ƙarfin farawa na SPD ya sauka ƙasa da ƙarfin wutar lantarki, kuma haɓakar mitar ƙarfin ƙarfin yanzu tana ƙaruwa, yana haifar da mummunan hatsarin gobara.
  1. Lokacin da SPD ke da walƙiya a halin yanzu, ba za a fidda haɗin haɗin waje ba da gangan, don haka kariyar walƙiya ta kayan aikin lantarki koyaushe tana cikin tasiri.

Bigiren aikace-aikace

SCB mai ba da kariya mai tanadi yana ba da kariya ta ƙwararriyar kariya ga SPD (Na'urar Kariyar Walƙiya) wanda ke kiyaye ƙarfin wutar lantarki na matakan farko, na biyu da na uku. Ya dace da wuraren da aka sanya kayan kariya na walƙiya na SPD, kamar kayan wuta don masana'antu da gine-ginen farar hula, wutar lantarki, sadarwa, jigilar hanya, petrochemical da sauran masana'antu.

Tsarin aiki

SCB, keɓaɓɓen haɗi na waje na SPD, wani nau'in kayan aiki ne wanda aka haɓaka bisa ga labarin 430.3 a cikin IEC61643-4-43: ɗauki dacewar na'urorin kariya na yanzu kafin haɗarin da kewaye ya haifar. Ya fi magance matsalolin da idan aka bi hanyoyin ruwa ko kwararar ruwa a cikin SPD, SCB na iya tafiya da sauri, yayin da igiyar walƙiya ta wuce, SCB ba ta tafiya, SCB tana tabbatar da cewa SPD ba ta haifar da gobara ba kuma kariya ta hasken kayan aiki yana daɗe, yana warwarewa matsalolin da ke akwai kariya ta makanta a cikin fius da masu fashewa da ake amfani da su a halin yanzu waɗanda ake amfani da su azaman masu cire haɗin waje. SCB shine ingantattun na'urori masu dacewa da nau'ikan sauya wutar lantarki nau'in SPD, nau'in iyakance ƙarfin lantarki SPD yayi amfani da tsarin samar da wutar lantarki mai ƙarancin ƙarfi.

Duk duniya suna cikin ɓangaren warware matsalar:

Lokacin da kunna wutar SPD ke faruwa, masu ɓoyewa na waje basa cire haɗin, Kuma yayin da guguwar ke gudana ta cikin SPD, masu fashewar waje suna cire haɗin bisa kuskure.

  • lalacewar akwatin mai raba wutar lantarki sakamakon walƙiya
  • mai-raba-lantarki-akwatin-lalacewa-ta hanyar walƙiya-ta-halin-da-ake-karuwa

Jamusanci ya gudanar da gwajin tasirin walƙiya a halin yanzu akan fis da masu fashewa a cikin 1997. Yankin Green yana nufin haɗi, yankin lemu yana nufin rashin tabbas, kuma jan yanki yana nufin yankewa.

gwaji na tasirin walƙiya a halin yanzu akan fis da masu fashewa

IEC ta tsara kuma ta gyara ƙa'idar SPD. Sub-kwamitin 37A ya kafa kungiyar Task Force 12 a taron Austria-Vienna. warware matsalar daidaitawa tsakanin masu fashewa da SPD.

Yawancin ƙasashe da ke kusa da kalma sun ƙaddamar da binciken matsalar lalacewar MOVs (ƙwararrun baƙin ƙarfe) SPD.

yanayin lalacewa pic1

  1. Lokacin da degeneration na SPD ya faru, nuni na sigogin lantarki shine Uc darajar rage.
  2. Lokacin da Uc reducesimar ta rage zuwa ƙarfin ƙarfin lantarki, ƙuƙwalwar ruwa zai ƙaru sosai.
  3. Lokacin da ƙarfi ya bayyana rashin ƙarfi na wucin gadi na wucin gadi, zai haifar da SPD don farawa.
  4. Lokacin da yanayin yau da kullun sama da 5A ke gudana ta cikin SPD, saurin ƙonewa ya fi saurin canja wuri gudu.

Lokacin da sama da 5A ke wucewa ta cikin SPD, zai iya kamawa wuta nan da nan, don haka SPD tana buƙatar mai ba da kariya mai sauyawa wanda ke saurin fitowa lokacin da na sama da 5A ya wuce don guje wa wuta!

5A-300A ya ratsa ta SPD

Yana buƙatar cewa lokacin da hasken walƙiya ya gudana, ba ya tafiya, wanda ke kiyaye tasirin aikin.

Lokacin da lalacewar SPD ke faruwa ko kuma kafin halin ɓarnawar da aka samu ta ikon al'ada ya kai 5A, zai iya tafiya da sauri.

Matakan aikin SCB na jigon aminci

Menene SCB zai iya magance matsalar

Rashin daidaituwa tsakanin na'urorin kare walƙiya da fis ko mai warwarewa?

Hanyar gargajiya ita ce haɗa mahaɗa ko mai fasa a jere a gaban na'urorin kariya ta walƙiya, za a sami ɓangarorin rashin daidaituwa guda huɗu idan yin hakan.

  1. Lokacin da na'urori masu kare walƙiya suka lalace ko kuma akwai wata damuwa da ke faruwa a cikin hanyar rarrabawa, na'urorin kariya ta walƙiya zasu zama masu gajeren zagaye zuwa ƙasa kuma Fuses ko masu fashewa ba zasu iya cire haɗin da sauri ba
  2. Lokacin da walƙiya ta auku, fius ko masu fashewa ba za su iya tsayawa ƙarfin wutan lantarki na ɗan lokaci ba, don an yi amfani da su azaman kayan aikin rarraba ƙarfi a farkon zane. Don haka abu ne mai sauki a haifar musu da tafiya ko fashewa, yana sanya walƙiya ba ta da amfani.
  3.  Lokacin da walƙiya ta gudana ta hanyar masu fashewa, ƙimar Sama tana da girma sosai kuma na'urorin kare walƙiya ba za su iya kare kayan aiki da kyau ba.
  4.  Fis ko masu fashewa ba za su iya cire haɗin ba a cikin wutar don sanya layin gidan wuta. Lokacin da gajeren da'irar ke faruwa, ba za su iya ɓata sauri ba.

SCB na iya magance matsaloli guda huɗu a lokaci guda

SCB, wanda aka haɗa shi cikin jerin a gaban SPD zai iya magance matsaloli guda huɗu a lokaci guda.

  1. Lokacin da na'urorin kare walƙiya suka wulakanta ko kuma akwai tsananin zafin rana da ke faruwa a kewayawar rarrabawa, SCB na iya cire haɗin kai tsaye don kauce wa na'urorin kare walƙiya daga yin harbi. Thearfin fashewar bai kai 3 A.
  2. Lokacin da walƙiya ta gudana, SCB ɗin da aka haɗa a cikin jerin a gaban SPD ba zai iya ci gaba da faɗuwa ba kuma babu lalacewa a ƙarƙashin walƙiyar ƙarfin 100kA, yana kiyaye SPD ɗin cikin aiki.
  3. Lokacin da walƙiya ta gudana ta cikin SCB, Up valueimar tana da ƙasa ƙwarai, yi daidai da jan ƙarfe mai tsayi ɗaya.
  4. Breakingarfin fashewar SCB ya wuce masu lalata filastik, har zuwa 100kA.

Akwai bambanci sosai a cikin lokaci da kuma fadada tsakanin ƙarfin ƙarfin ƙarfin halin yanzu da haɓaka. SCB yayi kyakkyawan amfani da waɗannan sigogi guda biyu don sarrafa electromagnets, cimma nasarar faɗuwa.

  1. Lokacin da alternating current ke gudana, electromagnet na iya tafiya da zabi dan yanke alternating current.
  2. Saboda saurin hawan gaggawa ya yi sauri, sai kara ya kare kafin electromagnet ya dauki mataki. Saboda haka lantarki yana cikin yanayin barga kuma SCB baya tafiya.

Ragowar ƙarfin wutar lantarki na SCBs, MCBs da Fuses ƙarƙashin halin motsawa na yanzu

Ragowar ƙarfin wutar lantarki na SCBs, MCBs da fius

Aikace-aikace na yau da kullun

Aikace-aikace na yau da kullun

Haɗin SCB tare da zane na asali na SPD

Haɗin jerin SCB tare da zane na zagaye na SPD