Izingxenye zokukhetha ze-circuit breaker yomkhiqizo we-Yuye

Ngokwesakhiwo sokuhlukaniswa kwe-circuit breaker, kukhona uhlobo lwendawo yonke, uhlobo lwegobolondo lepulasitiki, i-plastic case circuit breaker, elungele i-voltage elinganiselwe engu-690V, imvamisa engu-50/60Hz, ikalwe uhlelo lwamanje lwe-16 kuye ku-1600A noma njenge-transformer, i-motor. , i-capacitor nezinye izinto zokuvikela.Ikakhulukazi ukusabalalisa amandla kagesi, ukwenza igatsha nezinto zikagesi zilayishe ngokweqile, isifunda esifushane, indawo yokuvuza kanye nokuvikelwa kwe-voltage engaphansi, kungasetshenziselwa ulayini kanye nezinto zikagesi aziguquki njalo.Isetshenziswa kabanzi embonini nakwezolimo, ezokuthutha, izimayini, ukwakhiwa komphakathi kanye nezokuvikela kazwelonke neminye iminyango, ukudluliswa nokusatshalaliswa kwamandla, ukulawulwa kwesifunda nokuvikela kudlala indima enkulu, ukusetshenziswa okukhulu, izinhlobo eziningi zemikhiqizo.Ngenxa yokuthi abasebenzisi abaziqondi izici nezimfuneko zobuchwepheshe ze-MCCB ngokujulile noma ngokuphelele, eminye imiqondo kulula ukudideka enye nenye, futhi kuvame ukuba namaphutha nokungaqondi kahle ekusebenziseni okungokoqobo.Imingcele ebalulekile umsebenzisi okudingeka anake lapho ekhetha futhi esebenzisa i-MCCB yethulwa ngokuningiliziwe.Manje, incazelo yezinga lefreyimu yegobolondo ye-breaker isetshenziselwa ukusiza umsebenzisi ngokunengqondo ukukhetha ukusebenzisa i-MCCB.

Ibanga labakaki begobolondo le-circuit breaker

Isilinganiso sezindlu ze-circuit breaker ingamanje elinganiselwe yohambo oluningi olungakhwezwa kuhlaka kanye nezindlu zepulasitiki ezinosayizi ofanayo oyisisekelo.

Inani lamanje elilinganiselwe le-circuit breaker ingeyamanje lapho uhambo oluku-circuit breaker lungadlula isikhathi eside, futhi lwaziwa nangokuthi i-current rated of circuit breaker.

Kunezinhlobonhlobo zamanje zokulinganisa uzimele wegobolondo ochungechungeni olufanayo, kanye nenhlobonhlobo yamanje elinganiselwe kuhlaka lwesilinganiso sozimele wegobolondo elifanayo.Isibonelo, kukhona okungu-16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A kanye no-100A okulinganiselwe okwamanje ku-100A igobolondo nokulinganisa kozimele;Kukhona i-100A, 125A, 160A, 180A, 200A, 225A elinganiselwe okwamanje ku-225A igobolondo nesigaba sozimele.Kukhona i-100A elinganiselwe njengamanje kuwo womabili amamaki e-shell bracket 100A kanye ne-225A, kodwa ubukhulu, ukwakheka kanye nomthamo wokuphuka we-circuit breaker kuhlukile.Ngakho-ke, uhlobo kufanele lugcwaliswe ngokuphelele lapho kukhethwa, okungukuthi, isilinganiso samanje se-breaker circuit ngaphakathi kwesilinganiso samanje sebanga elithile le-shell bracket.Isigaba samanje esilinganiselwe sikhethwa ngokuya nge-coefficient yokuqala ye-(1.25) : ngakolunye uhlangothi, ihlangabezana futhi ihlangabezana nezidingo zamanje ezilinganiselwe eziphezulu zesekethe nezingxenye zikagesi;Okunye okokulinganisa, ukuze kutholwe ukusetshenziswa okungcono kakhulu kocingo kanye nezinzuzo zokucubungula.Ngakho-ke, amabanga eliwahlinzekayo yilawa: 3(6), 8, 10, 12.5, 16,20, 25, 32, 40, 50, 63, 80,100, 125, 160, 200, 250, 315, 400A, njll. walo mthethonqubo, lapho umthwalo obaliwe womugqa ungu-90A, ukucaciswa kwe-100A kuphela okungakhethwa, ngakho ukusebenza kwawo kokuvikela kuthintekile ngezinga elithile.

Isilungiselelo samanje se-Tripper yilapho i-tripper ilungiswa kunani lamanje lokusebenza.Kubhekiselwa kumanje olinganiselwe Ngokuphindaphinda, inani lesenzo samanje, isibonelo: i-overcurrent isethwe ukuze ithi 1.2, 1.3, 5, 10 izikhathi zamanje, ibhalwe ukuthi IR =1.2In, 1.3In, 5In, 10In, njll. Manje amanye ama-trippers we-elekthronikhi, ukulayishwa kwawo okuchichimayo kanye nokubambezeleka okulinganiselwe okwamanje kuyalungiseka, okwamanje okulungisiwe, empeleni, kuseyimanje okulinganiselwe, yisona samanje esiphezulu esingadluliswa isikhathi eside.

Isilinganiso sokusebenza samanje yisona sangempela sokusebenza se-circuit breaker ku-voltage ethile yokusebenza lapho oxhumana nabo abasizayo (izesekeli) befakiwe.Eyamanje i-3A noma i-6A, esetshenziselwa ukulawula nokuvikela isekethe.