Abun zaɓin abubuwan zaɓin ƙirar yuye mai ƙwanƙwasa keɓaɓɓen yanayi

Dangane da tsarin rarrabuwar da'ira, akwai nau'in duniya, nau'in harsashi na filastik, nau'in harsashi na filastik, wanda ya dace da ƙimar ƙarfin lantarki 690V, mitar 50/60Hz, rated na yanzu 16 zuwa 1600A tsarin rarrabawa ko azaman mai canzawa, mota. , capacitor da sauran kayan kariya.Yafi don rarraba wutar lantarki, yi reshe da kayan aikin lantarki obalodi, gajeren kewaye, yayyo batu da kuma karkashin-voltage kariya, kuma za a iya amfani da layi da lantarki kayan aiki ba m tuba.Ana amfani da shi sosai a masana'antu da noma, sufuri, hakar ma'adinai, gine-ginen jama'a da tsaro na kasa da sauran sassan, watsawa da rarraba wutar lantarki, kula da kewaye da kariya suna taka muhimmiyar rawa, babban amfani ne, samfurori masu yawa.Saboda masu amfani ba su fahimci halaye da buƙatun fasaha na MCCB ba da zurfi ko gabaɗaya, wasu ra'ayoyi suna da sauƙin ruɗe da juna, kuma galibi ana samun wasu kurakurai da rashin fahimta a cikin aikace-aikacen aikace-aikacen.An gabatar da mahimman sigogi waɗanda mai amfani ke buƙatar kula da su lokacin zabar da amfani da MCCB dalla-dalla.Yanzu, ana amfani da bayanin matakin firam ɗin harsashi don taimakawa mai amfani da kyau ya zaɓi amfani da MCCB.

Matsayin madaidaicin harsashi mai juyawa

Ƙimar firam ɗin mahalli mai watsewar kewayawa shine ƙididdigewa na halin yanzu na matsakaicin tafiya wanda za'a iya hawa akan firam da gidajen filastik masu girman asali iri ɗaya.

Ƙididdigar halin yanzu na na'ura mai wayo shine halin yanzu wanda tafiya a cikin na'urar na'ura na iya wucewa na dogon lokaci, wanda kuma aka sani da rated current of circuit breaker.

Akwai nau'ikan ƙimar firam ɗin harsashi iri-iri na halin yanzu a cikin jeri ɗaya, da nau'ikan ƙididdiga na halin yanzu a cikin ƙimar firam ɗin harsashi iri ɗaya na halin yanzu.Misali, akwai 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A and 100A rated current in the 100A harsashi da firam rating;Akwai 100A, 125A, 160A, 180A, 200A, 225A rated halin yanzu a cikin 225A harsashi da firam class.Akwai 100A da aka ƙididdigewa a cikin duka maki 100A da 225A harsashi, amma girman, siffa da ƙarfin karyewar na'urar kewayawa sun bambanta.Don haka, nau'in ya kamata a cika gabaɗaya yayin zaɓar, wato, ƙimar halin yanzu na na'urar da'ira a cikin ƙayyadaddun ƙimar ƙimar harsashi na musamman.An zaɓi ƙididdige ƙididdiga na yanzu bisa ga fifikon fifiko na (1.25): a gefe guda, yana haɗuwa kuma ya dace da bukatun matsakaicin ƙimar halin yanzu na kewaye da kayan lantarki;Ɗayan kuma don daidaitawa, don samun mafi kyawun amfani da waya da fa'idodin sarrafawa.Don haka makin da ta bayar sune: 3(6) na wannan ka'ida, lokacin da aka ƙididdige nauyin layin shine 90A, za a iya zaɓar ƙayyadaddun 100A kawai, don haka aikin kariya ya shafi wani matsayi.

Saitin halin yanzu shine lokacin da aka daidaita mai tafiya zuwa ƙimar aiki na yanzu.Yana nufin ƙimar halin yanzu A cikin mahara, shine ƙimar aikin halin yanzu, alal misali: saita juzu'i zuwa 1.2, 1.3, 5, sau 10 na halin yanzu, an rubuta IR =1.2In, 1.3In, 5In, 10In, da sauransu. Yanzu wasu tafiye-tafiye na lantarki, nauyin nauyinsa da tsayin daka da aka kimanta halin yanzu yana daidaitawa, daidaitawar halin yanzu, a gaskiya, har yanzu shine ƙimar halin yanzu, shine matsakaicin halin yanzu wanda za'a iya wucewa na dogon lokaci.

Ƙididdigar aiki na halin yanzu shine ainihin halin yanzu na mai watsewar kewayawa a wani takamaiman ƙarfin aiki lokacin da aka shigar da lambobin sadarwa (na'urorin haɗi).A halin yanzu shine 3A ko 6A, wanda ake amfani dashi don sarrafawa da kare kewaye.