siffa na Circuit Breakers
Mai Sake Sake Wuta wata maɓalli ce a tsarin wutar lantarki da ake amfani da shi don karewa da sarrafa madaukai. Yana iya rufewa, ɗauka da karya halin yanzu a ƙarƙashin al'ada ko yanayi mara kyau. Ayyukansa na asali sun haɗa da kariya ta wuce gona da iri, kariyar gajeriyar kewayawa, kariyar ƙarancin wutar lantarki, da dai sauransu. Yana daidai da haɗuwa da fuses da sama da / ƙarƙashin ƙarfin wutar lantarki na thermal relays, amma yana da babban aminci da sake amfani da shi.

Babban sigogin halayen
Rated voltage (Ue): Mafi girman ƙarfin lantarki wanda na'ura mai rarrabawa ke aiki akai-akai, kamar 220V, 380V, da dai sauransu 37.

Ƙimar halin yanzu (A): Matsakaicin ƙimar halin yanzu wanda za'a iya ɗauka cikin aminci cikin dogon lokaci, wanda dole ne ya fi ƙarfin aiki na da'ira da 35%.

Ƙarfin Ƙarfafawa (Icu/ICs): Ƙarfin ƙwanƙwasa gajeriyar kewayawa (Icu) yana nufin ikon karya matsakaicin matsakaicin gajeren lokaci a lokaci ɗaya. Ƙarfin karya aiki (ICs) yana nufin ƙofa na yanzu wanda har yanzu ana iya amfani da shi bayan karya. Gabaɗaya, masu watsewar firam ɗin suna buƙatar Ics≥50% Icu, kuma gyare-gyaren yanayin da'ira suna buƙatar Ics≥25% ICU.

Juriya na ɗan gajeren lokaci (Icw): Ƙarfin na'urar da za a iya jure wa ɗan gajeren lokaci a cikin ƙayyadadden lokaci ba tare da lalacewa ba.

Ii. Rarraba Masu Kashe Wuta
1. Ta matakin ƙarfin lantarki
Babban ƙarfin lantarki: Ana amfani da shi a cikin tsarin 3kV da sama. Kafofin watsa labarai na gama-gari na kashewa sun haɗa da sulfur hexafluoride (SF6), vacuum, mai, da sauransu 4.

Ana kasasu masu jujjuya ƙarancin wutar lantarki zuwa nau'ikan uku: Nau'in firam (ACB), nau'in ƙarar da aka ƙera (MCCB), da nau'in ƙarami (MCB). 57.

2. Ta tsari da aikace-aikace
Nau'in firam ɗin da'ira (ACB
Ƙididdigar halin yanzu: 200A zuwa 6300A, sanye take da kariya ta matakai hudu (tsawon jinkiri, jinkirin jinkiri, nan take, da kuskuren ƙasa), yawanci ana amfani dashi don kariyar manyan maɓalli a cikin tsarin rarrabawa ko kayan aiki mai girma.

Molded case breaker (MCCB
Karamin tsari, wanda aka ƙididdige 10A zuwa 1600A na yanzu, wanda ya dace da kariyar da'irar reshe. MCCB na lantarki yana goyan bayan kariyar zaɓi, kuma wasu ƙira suna da aikin haɗin gwiwar yanki 57.

Miniature Circuit Breaker (MCB
Ana amfani da shi a cikin da'irori na ƙarshe da ke ƙasa da 125A (kamar na gida da na kasuwanci), ana samun su a cikin ƙayyadaddun 1P zuwa 4P, kuma yana goyan bayan wuce gona da iri, gajeriyar kewayawa da kariyar yabo.

3. Danna fasahar kashe baka
Vacuum circuit breaker: saurin kashe baka, tsawon sabis, dacewa da yanayin aiki akai-akai 4.

Mai watsewar kewayawa na SF6: Yana da ingantacciyar rufi da aikin kashewa kuma galibi ana amfani da shi a cikin manyan tsarin wutar lantarki. Ana buƙatar gwada tsabtar gas ɗin akai-akai.

Iii. Ka'idoji don Zaɓin Mai Sake Wuta
Daidaita sigogin kewayawa
rated ƙarfin lantarki ≥ layin ƙarfin lantarki, rated halin yanzu ≥ matsakaicin load halin yanzu, karya iya aiki ≥ sa ran short-kewaye halin yanzu 57.

Nau'in ɗaukakawa
Kariyar mota tana buƙatar la'akari da farkon halin yanzu (ƙimar saitin tafiya nan take shine sau 1.35 zuwa 1.7 na farawa). Da'irar hasken wuta tana ɗaukar nauyi sau shida na halin yanzu na 78.

Haɗin kai na zaɓi
Ƙwararrun kewayawa na sama da ƙananan suna buƙatar saduwa da bambancin lokaci (kamar bambancin aikin jinkiri na gajeren lokaci ≥0.1s) da kuma bambancin halin yanzu (aiki na yanzu na matakin sama ≥ 1.2 sau na ƙananan matakin) don kauce wa ƙetare matakin.

Daidaitawar muhalli
Don yanayin tsayin tsayi, ɗanɗano ko yanayin zafin jiki, yakamata a zaɓi samfura na musamman kuma an daidaita ƙididdiga na yanzu (ana buƙatar rage ƙarfin lokacin da zafin jiki ya wuce 40 ℃). 13.

Iv. Gwajin Breaker da Kulawa
Abubuwan gwajin maɓalli
Juriya mai ƙarfi/tsayawa: Gano asarar lamba 12.

Binciken halayen injina: Lokacin buɗewa da rufewa, saurin gudu da daidaituwa 14.

Ayyukan insulation: Juriya gwajin ƙarfin lantarki, gano digiri na injin (don injin da'ira) 14.

Tabbacin aikin karewa: Daidaita kima da kimar aikin gajeriyar kewayawa 8.

Mabuɗin abubuwan kulawa
Dubawa na yau da kullun: Matsin iskar gas (SF6 mai watsewar kewayawa), ablation na lamba, aikin lubrication 48.

Gwaje-gwajen rigakafi: Anyi daidai da ma'auni kamar GB/T 1984 da GB 14048, sau ɗaya kowace shekara 1 zuwa 3.

Gudanar da kuskure: Idan akwai ƙarancin mai, zafi fiye da kima ko fashewa, ana buƙatar keɓewar gaggawa kuma yakamata a bincika matsalolin lamba ko tsarin kashe baka. 4.

V. Binciken Matsalolin Jama'a
Bambanci tsakanin na'ura mai rarrabawa da mai cire haɗin
Ana amfani da mai cire haɗin (QS) kawai don ware wutar lantarki kuma ba shi da ikon kashe baka. Mai jujjuyawa (QF) na iya yanke kuskuren halin yanzu na 12.

Muhimmancin Icu da Ics
Icu yana nuna iyawar karya na ƙarshe, kuma Ics yana nuna amincin ci gaba da aiki. Babban layukan suna mayar da hankali kan Ics, yayin da layin reshe ke mayar da hankali kan Icu8.

Zaɓin na'urori masu iyakancewa na yanzu
Daidaita yanayin zafi na kebul ta hanyar madaidaicin iyaka na yanzu, kuma ba da fifiko ga samfuran da ke da saurin karyewa (kamar vacuum circuit breakers) 78.

Kariyar yabo ta yi rauni
Mafi yawa saboda raguwar rufin layi ko ƙasa mara kyau, ya zama dole don gano ɗigon ruwa a halin yanzu kuma daidaita matakin aikin (yawanci 30mA zuwa 300mA)