Njengelona shishini limele kakhulu e-Wenzhou, iYUANKY inembali ende yophuhliso kunye nekhonkco elipheleleyo leshishini. Iimveliso zethu nazo zikhuphisana kakhulu kwimarike.njengeMCB.

I-MCB (i-Miniature Circuit Breaker, i-circuit breaker encinci) yenye yezona zixhobo zokukhusela ezisetyenziswa kakhulu kwiinkqubo zokusabalalisa i-voltage ephantsi. Ngeenzuzo ezifana nobukhulu obuncinci, ukusebenza ngokufanelekileyo kunye nokukhuselwa okuchanekileyo, kusetyenziswe ngokubanzi kwiindlela zokusasaza kwimizi-mveliso, zorhwebo kunye nezakhiwo zoluntu, ukwenza imisebenzi engundoqo efana nokugqithiswa kwesiphaluka kunye nokukhusela i-short-circuit. Oku kulandelayo kuhlalutyo olucacileyo lweempawu zalo zokusebenza ezivela kwiinkalo ezininzi ezifana nemisebenzi ephambili, iimpawu zobugcisa, kunye neempawu zesicelo.

I. Umsebenzi woKhuseleko olungundoqo: Qinisekisa ukusebenza ngokukhuselekileyo kwesekethe

Ixabiso eliphambili le-MCB lilele ekukhuselweni kokhuseleko lwemigca yokusabalalisa kunye nezixhobo zombane. Umsebenzi wayo wokukhusela uphunyezwa ikakhulu ngeendlela ezichanekileyo, ngokukodwa ezi ntlobo zimbini zokhuseleko olungundoqo:

1. Umsebenzi wokukhusela umthwalo ogqithisileyo

Xa isiphaluka sisebenza ngokuqhelekileyo, umsinga ungaphakathi koluhlu olulinganisiweyo. Nangona kunjalo, xa kukho izixhobo zombane ezininzi okanye isiphaluka sigqithise ixesha elide, i-current in the line iya kudlula ixabiso elilinganisiweyo, elibangela ukuba iingcingo zifudumale. Ukuba ilayishwe kakhulu ixesha elide, inokubangela ukuguga kwe-insulation, iisekethe ezimfutshane kunye nemililo. Ukukhuselwa kokugqithiswa kwe-MCB kufezekiswa ngesixhobo se-bimetallic strip thermal trip: xa i-current idlula ixabiso elilinganisiweyo, i-bimetallic strip igoba kwaye ikhubazeke ngenxa yobushushu obuveliswa ngumbane, ukuqhuba indlela yokuhamba ukuba isebenze, ibangela ukuba abafowunelwa besiphaluka bavule kwaye banqumle isiphaluka.

Ukukhuselwa komthwalo ogqithisiweyo kunophawu lwexesha eliguquguqukayo, oko kukuthi, ubukhulu bomthwalo ogqithisiweyo wangoku, lifutshane ixesha lesenzo. Ngokomzekelo, xa i-current i-1.3 amaxesha akhoyo ngoku, ixesha lokusebenza linokuhlala iiyure eziliqela. Xa ikhoyo ngoku ifikelela kumaxesha amathandathu angoku, ixesha lesenzo linokufinyezwa kwimizuzwana embalwa. Oku akugcini nje ukuphepha ukukhubeka okungafunekiyo okubangelwa kukugqithiswa kwexesha elifutshane elincinci kodwa ngokukhawuleza kunqumla isiphaluka kwimeko yomthwalo onzima, ukufezekisa ukhuseleko oluguquguqukayo noluthembekileyo.

2. Umsebenzi wokukhusela isiphaluka esifutshane

Isiphaluka esifutshane sesinye sezona ziphoso eziyingozi kakhulu kwiisekethe, ngokuqhelekileyo zibangelwa ngumonakalo we-insulation of wires okanye iimpazamo zangaphakathi zezixhobo. Ngeli xesha, ukunyuka kwangoku ngokukhawuleza (kunokwenzeka ukuba kufikelele kumashumi okanye namakhulu amaxesha omlinganiselo olinganisiweyo), kwaye amandla amakhulu ombane kunye nobushushu obuveliswayo bunokutshisa ngoko nangoko iingcingo kunye nezixhobo, kwaye zibangele imililo okanye iingozi zombane. Ukukhuselwa kwe-MCB kwi-short-circuit ye-MCB kufezekiswa ngesixhobo sohambo lwe-electromagnetic: xa i-short-circuit current idlula kwi-coil yesixhobo sohambo lwe-electromagnetic, i-electromagnetic force enamandla yenziwa, ukutsala i-armature ukubetha indlela yokuhamba, kubangela ukuba abafowunelwa bavule ngokukhawuleza kwaye banqumle isiphaluka.

Ixesha lesenzo sokhuseleko lwesekethe emfutshane lifutshane kakhulu, ngokuqhelekileyo ngaphakathi kwemizuzwana eyi-0.1. Iyakwazi ukuhlukanisa ngokukhawuleza indawo yesiphoso ngaphambi kokuba i-fault yande, ukunciphisa umonakalo weempazamo ze-short-circuit kumgca kunye nezixhobo, kunye nokukhusela ukhuseleko lomntu kunye nepropathi.

Ii. Iimpawu zobuGcisa: Ichanekile, izinzile kwaye inokwethenjelwa

1. Ukuchaneka okuphezulu kwintshukumo

Amaxabiso okhuseleko lwe-MCB ayilwe ngokungqongqo kwaye alinganiswe ukuqinisekisa ukusebenza okuchanekileyo ngaphakathi koluhlu oluchaziweyo lwangoku. Ixabiso langoku lokumisela ukukhuselwa komthwalo ogqithisiweyo (njengokungasebenzi kumaxesha e-1.05 angoku kunye nokusebenza ngaphakathi kwexesha elivunyelweneyo kwi-1.3 amaxesha alinganiselweyo angoku) kunye neyona ndlela iphantsi yokusebenza yokukhusela i-short-circuit (ngokuqhelekileyo i-5 ukuya kwii-10 amaxesha angoku alinganisiweyo) zombini ihambelana nemigangatho yamazwe ngamazwe (njenge-IEC 60898) kunye nemigangatho yesizwe ye-GB 106 (njenge-3 GB 106). Ngethuba lenkqubo yokuvelisa, i-MCB nganye kufuneka ilandele ukulungelelaniswa okungqongqo ukuqinisekisa ukuba impazamo yexesha lesenzo phantsi kweemeko ezahlukeneyo zangoku ilawulwa ngaphakathi kwinqanaba elivumelekileyo, ukuphepha "ukungaphumeleli ukusebenza" (ukungakhubeki ngexesha leempazamo) okanye "ukusebenza kwamanga" (ukukhubeka ngexesha lokusebenza okuqhelekileyo).

2. Ubomi obude bomatshini kunye nombane

I-MCB kufuneka imelane rhoqo nemisebenzi yokuvala kunye nokuvulwa kunye neempembelelo zangoku ezingalunganga, ngaloo ndlela ineemfuno ezingqongqo kubomi boomatshini kunye nombane. Ubomi bomatshini bubhekiselele kwinani lezihlandlo i-circuit breaker esebenza ngayo kwimeko engekhoyo. Ubomi bomatshini be-MCB ekumgangatho ophezulu bunokufikelela ngaphezu kwamaxesha angama-10,000. Ubomi bombane bubhekiselele kwinani lamaxesha okusebenza phantsi komthwalo ngoku olinganisiweyo, ngokuqhelekileyo akukho ngaphantsi kwamaxesha angama-2,000. Amacandelo ayo angaphakathi angundoqo (njengabafowunelwa, iindlela zokukhubeka, kunye nemithombo) zenziwe ngezinto ezinamandla eziphezulu (ezifana noqhagamshelwano lwesilivere ye-alloy kunye ne-phosphor bronze conductive parts), kunye neendlela ezichanekileyo zokucutshungulwa kunye nokushisa ukushisa, ukuxhathisa ukunxiba, ukuxhathisa ukubola, kunye nokuxhatshazwa kokukhathala kuphuculwe ukuqinisekisa ukusebenza okuzinzileyo nasemva kokusetyenziswa kwexesha elide.

3. Umthamo wokuqhawula ulungelelaniswa neemfuno zesiganeko

Umthamo wokuqhawula ubhekiselele kwixabiso eliphezulu le-short-circuit langoku elinokuthi i-MCB iphule ngokukhuselekileyo phantsi kweemeko ezichaziweyo, kwaye isalathisi esisisiseko sokulinganisa amandla ayo okukhusela i-short-circuit. Ngokuxhomekeke kwiimeko zesicelo, ukophuka kwe-MCB kungahlelwa ngokwamanqanaba amaninzi, afana nala:

Kwiimeko zoluntu, i-MCBS ekwaziyo ukophula i-6kA okanye i-10kA iqhele ukusetyenziswa, enokujongana neziphoso zesiphaluka esifutshane kumakhaya okanye kwizakhiwo ezincinci zorhwebo.

Kwiimeko zoshishino, i-MCBS enegunya eliphezulu lokuqhawula (njenge-15kA kunye ne-25kA) iyafuneka ukuba iqhelane neendawo ezinezixhobo ezixineneyo kunye nemisinga emikhulu ye-short-circuit.

Ukuphunyezwa komthamo wokuqhawula kuxhomekeke kwinkqubo yokucima i-arc ephuculweyo (efana negumbi lokucima i-arc yegridi). Ngethuba lokuqhawula i-short-circuit, i-arc ifakwe ngokukhawuleza kwigumbi lokucima i-arc, kwaye i-arc ihlulwe kwii-arcs ezimfutshane ezininzi ngokusebenzisa iigridi zetsimbi, ukunciphisa i-voltage ye-arc kunye nokucima ngokukhawuleza i-arc ukukhusela umonakalo kwisakhiwo sangaphakathi se-breaker circuit ngenxa yokushisa okuphezulu kwe-arc.

Iii. Iimpawu zoLwakhiwo kunye nokuSebenza: I-miniaturization kunye nokulula

I-Compact ngobukhulu kwaye kulula ukuyifaka

I-MCB ithatha i-design modular, i-compact ngobukhulu (ngokuqhelekileyo kunye neemodyuli eziqhelekileyo ezifana ne-18mm okanye i-36mm ububanzi), kwaye inokufakwa ngokuthe ngqo kwiireyile zeebhokisi zokusabalalisa eziqhelekileyo okanye iikhabhinethi zokusabalalisa, ukugcina indawo yokufakela. Ubume bayo obudibeneyo buvumela ukukhuselwa okuzimeleyo kweesekethe ezininzi ngaphakathi kwendawo yokusabalalisa amandla amancinci. Ngokomzekelo, kwibhokisi yokuhanjiswa kwendlu, ii-MCBS ezininzi zingasetyenziselwa ukulawula iisekethe ezahlukeneyo ezifana nokukhanyisa, iziseko, kunye ne-air conditioners ngokulandelanayo, ukufezekisa ukhuseleko oluhlukeneyo kunye nolawulo, olulungele ukufunyanwa kwempazamo kunye nokulawula ukusetyenziswa kwamandla.

2. Kulula ukusebenza kwaye kulula ukuyigcina

Indlela yokusebenza ye-MCB yenzelwe ukuba ibe ngumntu. Ukuvala (" ON "isikhundla) kunye nokuvula (" OFF ") imisebenzi ifezekiswa ngokubamba. Ubume bomqheba bubonakala ngokucacileyo, buvumela isigwebo esicacileyo se-circuit on-off state. Emva kwe-TRIP ephosakeleyo, isibambo siya kuba ngokuzenzekelayo kwindawo ephakathi (" I-TRIP "isikhundla), iququzelele abasebenzisi ukuba bachonge ngokukhawuleza isiphaluka esiphosakeleyo. Xa useta kwakhona, susa nje isiphatho kwindawo ethi "OFF" kwaye emva koko uyityhale kwindawo ethi "ON". Akukho zixhobo zobuchwephesha ezifunekayo kwaye umsebenzi ulula. Kulondolozo lwemihla ngemihla, i-MCB ayifuni ukulungisa ingxaki okanye ukuhlolwa. Ifuna kuphela ukutshekishwa rhoqo ukuqinisekisa ukuba inkangeleko ayichanekanga kwaye ukusebenza kuhamba kakuhle, okukhokelela kwiindleko zokugcinwa okuphantsi.

3. Ukusebenza kakuhle kwe-insulation

Ukuqinisekisa ukhuseleko lombane, i-casing kunye ne-insulating components ye-MCB yenziwe nge-high-voltage kunye ne-high-temperature resistant insulating materials (ezifana neeplastiki ze-thermosetting kunye ne-flame-retardant ABS), kunye ne-insulation resistance ye-≥100MΩ, ekwazi ukumelana ne-2500V AC 1 voltage breakdown okanye i-flashover nomzuzu wokuvavanya. Isenokugcina ukusebenza kakuhle kwe-insulation kwiindawo ezibuhlungu ezifana nokumanzi kunye nothuli, ukukhusela ukuvuza okanye i-phase-to-phase short circuits, kunye nokuqinisekisa ukhuseleko lwabaqhubi kunye nezixhobo.

Iv. Imisebenzi Eyandisiweyo kunye noKuguquguquka: Ukuhlangabezana nezidingo ezahlukeneyo

1. Iintlobo ezahlukeneyo ezifunyenweyo

Ukongeza kokugqithiswa okusisiseko kunye nokukhuselwa kwesekethe emfutshane, i-MCB inokuhlangabezana neemfuno zeemeko ezahlukeneyo ngokwandisa ukusebenza. Iintlobo eziqhelekileyo zokuphuma ziquka:

- I-MCB ngokhuseleko lokuvuza (RCBO) : Idibanisa imodyuli yokufumanisa ukuvuza kwisiseko se-MCB eqhelekileyo. Xa kukho ukuvuza kwisekethe (intsalela yangoku idlula i-30mA), inokukhubeka ngokukhawuleza ukunqanda iingozi zokothuka kombane kwaye isetyenziswa kakhulu kwiisekethe zesokethi zasekhaya.

- I-MCB enokukhuselwa kwe-overvoltage / undervoltage: Ihamba ngokuzenzekelayo xa igridi yombane iphezulu kakhulu okanye iphantsi kakhulu ukukhusela izixhobo zombane ezifana neefriji kunye nezifudumezi zomoya kumonakalo obangelwa ukuguquguquka kwamandla ombane.

- I-MCB ehlengahlengisiweyo yangoku: Lungisa ixabiso langoku elilinganiselweyo ngokusebenzisa i-knob, ilungele iimeko apho umthwalo wangoku ufuna ukulungiswa ngokuguquguqukayo.

2. Ukuguquguquka okuqinileyo kokusingqongileyo

I-MCB inokusebenza ngokuzinzileyo phantsi koluhlu olubanzi lweemeko zokusingqongileyo, ngokuqhelekileyo zisebenza ngaphakathi kuluhlu lweqondo lokushisa -5 ℃ ukuya kwi-40 ℃ (imifuziselo ekhethekileyo inokwandiswa ukuya ku -25 ℃ ukuya kwi-70 ℃), kunye nomswakama ohambelanayo we-≤95% (akukho condensation), kwaye iyakwazi ukuziqhelanisa neemeko zemozulu zemimandla eyahlukeneyo. Okwangoku, isakhiwo sayo sangaphakathi sinamandla athile okumelana nokungcangcazela kunye nokothuka, kwaye inokusebenza ngokuthembekileyo kwiindawo zoshishino okanye izithuthi zothutho (ezifana neenqanawa kunye neenqwelo zokuzonwabisa) kunye nokungcangcazela okuncinci.

Umahluko kwabanye abaphuli beesekethe:

I-MCB (i-Miniature Circuit Breaker): Isetyenziselwa kakhulu ukukhuselwa kweesekethe kunye ne-low current (ngokuqhelekileyo ingaphantsi kwe-100 amperes).

I-MCCB (i-Molded Case Circuit Breaker): Isetyenziselwa ukukhuselwa kweesekethe kunye nemisinga ephezulu (ngokuqhelekileyo ingaphezu kwe-100 amperes) kwaye ifanelekile kwizixhobo ezinkulu kunye neenkqubo zokuhambisa amandla.

I-RCBO (I-Leakage Circuit Breaker): Idibanisa ukukhuselwa ngokugqithisileyo kunye nemisebenzi yokukhusela ukuvuza, kwaye ingakhusela ngaxeshanye isiphaluka ekugqithiseni, isiphaluka esifutshane kunye nokuvuza.