Raws li cov neeg sawv cev tshaj plaws hauv Wenzhou, YUANKY muaj keeb kwm ntev ntawm kev txhim kho thiab ua tiav cov saw hlau. Peb cov khoom kuj tseem muaj kev sib tw hauv kev ua lag luam.xws liMCB.

MCB (Miniature Circuit Breaker, me me Circuit Court breaker) yog ib qho ntawm cov khoom siv dav hlau tiv thaiv hauv cov tshuab hluav taws xob tsawg. Nrog rau qhov zoo xws li qhov me me, kev ua haujlwm yooj yim thiab kev tiv thaiv meej, nws yog dav siv nyob rau hauv cov kab kev faib khoom ntawm kev lag luam, kev lag luam thiab pej xeem vaj tse, ua haujlwm tseem ceeb xws li Circuit Court overload thiab tiv thaiv luv luv. Cov hauv qab no yog cov ncauj lus kom ntxaws ntawm nws cov haujlwm ua haujlwm los ntawm ntau yam xws li cov haujlwm tseem ceeb, cov yam ntxwv ntawm kev ua haujlwm, thiab cov yam ntxwv ntawm daim ntawv thov.

I. Core Protection Function: Ua kom muaj kev nyab xeeb ntawm lub voj voog

Tus nqi tseem ceeb ntawm MCB yog nyob rau hauv kev tiv thaiv kev nyab xeeb ntawm cov kab xa khoom thiab cov khoom siv hluav taws xob. Nws txoj haujlwm tiv thaiv yog ua tiav los ntawm cov txheej txheem kev ua haujlwm meej, tshwj xeeb nrog rau ob hom kev tiv thaiv tseem ceeb hauv qab no:

1. Kev tiv thaiv overload muaj nuj nqi

Thaum lub voj voog ua haujlwm ib txwm muaj, qhov tam sim no nyob hauv qhov ntsuas ntsuas. Txawm li cas los xij, thaum muaj cov khoom siv hluav taws xob ntau dhau los lossis cov khoom siv hluav taws xob ntau dhau rau lub sijhawm ntev, qhov tam sim no hauv kab yuav dhau qhov ntsuas tus nqi, ua rau cov xov hlau kub. Yog tias overloaded rau lub sij hawm ntev, nws yuav ua rau rwb thaiv tsev laus, luv circuits thiab txawm hluav taws kub. Kev tiv thaiv overload ntawm MCB yog ua tiav los ntawm bimetallic strip thermal trip ntaus ntawv: thaum tam sim no tshaj qhov ntsuas tus nqi, lub bimetallic sawb khoov thiab deforms vim lub tshav kub generated los ntawm tam sim no, tsav tsheb mus ncig teb chaws mechanism ua, ua rau lub Circuit Court breaker hu qhib thiab txiav tawm Circuit Court.

Nws cov kev tiv thaiv overload muaj cov yam ntxwv sib txawv ntawm lub sijhawm, uas yog, qhov ntau dua qhov overload tam sim no, lub sijhawm ua haujlwm luv dua. Piv txwv li, thaum tam sim no yog 1.3 npaug ntawm qhov ntsuas tam sim no, lub sijhawm ua haujlwm yuav kav ntev li ob peb teev. Thaum qhov tam sim no nce mus txog rau lub sijhawm ntawm qhov ntsuas tam sim no, lub sijhawm ua haujlwm tuaj yeem raug luv luv rau hauv ob peb feeb. Qhov no tsis tsuas yog zam qhov tsis tsim nyog tripping tshwm sim los ntawm lub sij hawm luv luv me me overload tab sis kuj sai sai txiav tawm Circuit Court nyob rau hauv cov ntaub ntawv ntawm overload hnyav, ua tiav kev tiv thaiv yoog raws thiab txhim khu kev qha.

2. Short-circuit tiv thaiv muaj nuj nqi

luv luv Circuit Court yog ib qho ntawm cov teeb meem txaus ntshai tshaj plaws nyob rau hauv circuits, feem ntau tshwm sim los ntawm kev puas tsuaj rau lub rwb thaiv tsev ntawm cov xov hlau los yog cov khoom ua txhaum ntawm cov khoom. Lub sijhawm no, tam sim no surges tam sim no (tej zaum mus txog kaum lossis ntau pua zaus ntawm qhov ntsuas tam sim no), thiab lub zog hluav taws xob loj thiab hluav taws xob tsim hluav taws xob tuaj yeem hlawv hluav taws xob thiab khoom siv tam sim ntawd, thiab tseem ua rau hluav taws kub lossis hluav taws xob poob siab. Kev tiv thaiv luv luv ntawm MCB yog ua tiav los ntawm cov khoom siv hluav taws xob mus txawv tebchaws: thaum lub caij luv luv tam sim no dhau los ntawm lub kauj ntawm lub tshuab hluav taws xob mus ncig, lub zog hluav taws xob muaj zog yog tsim, nyiam lub armature los tawm tsam cov txheej txheem mus txawv tebchaws, ua rau cov neeg sib cuag sai sai thiab txiav tawm ntawm Circuit Court.

Lub sijhawm ua haujlwm ntawm kev tiv thaiv luv luv luv luv, feem ntau tsis pub dhau 0.1 vib nas this. Nws tuaj yeem cais tawm qhov yuam kev sai sai ua ntej qhov kev ua txhaum yuav nthuav dav, txo qhov kev puas tsuaj ntawm kev ua txhaum luv luv rau cov kab thiab cov khoom siv, thiab tiv thaiv tus kheej thiab cov khoom muaj kev nyab xeeb.

Ii. Technical nta: Precise, ruaj khov thiab txhim khu kev qha

1. High precision hauv kev txav

Kev tiv thaiv qhov tseem ceeb ntawm MCB tau raug tsim thiab ntsuas nruj kom ntseeg tau tias kev ua haujlwm zoo nyob rau hauv qhov teev tam sim no. Kev teeb tsa tam sim no ntawm nws cov kev tiv thaiv overload (xws li tsis ua haujlwm ntawm 1.05 npaug ntawm qhov ntsuas tam sim no thiab kev ua haujlwm nyob rau hauv lub sijhawm pom zoo ntawm 1.3 npaug ntawm qhov ntsuas tam sim no) thiab qhov kev ua haujlwm yam tsawg kawg nkaus ntawm kev tiv thaiv luv luv (feem ntau yog 5 txog 10 npaug ntawm qhov ntsuas tam sim no) ob qho tib si ua raws li cov qauv thoob ntiaj teb (xws li IEC 60898) thiab lub teb chaws tus qauv (xws li IEC 60898). Thaum lub sij hawm tsim cov txheej txheem, txhua MCB yuav tsum tau ua nruj me ntsis calibration los xyuas kom meej tias lub sij hawm ua yuam kev nyob rau hauv txawv tam sim no tej yam kev mob yog tswj nyob rau hauv lub tso cai ntau yam, tsis txhob "ua hauj lwm tsis ua hauj lwm" (tsis tripping thaum lub sij hawm faults) los yog "kev ua hauj lwm cuav" (tripping thaum lub sij hawm ib txwm ua hauj lwm).

2. Lub neej ua haujlwm ntev thiab hluav taws xob

MCB yuav tsum nquag tiv thaiv kev kaw thiab qhib kev ua haujlwm nrog rau qhov cuam tshuam tam sim no, yog li muaj cov kev cai nruj heev rau kev siv tshuab thiab hluav taws xob lub neej. Mechanical life yog hais txog tus naj npawb ntawm lub sij hawm lub Circuit Court breaker ua haujlwm nyob rau hauv lub xeev tsis muaj tam sim no. Lub neej txhua yam ntawm MCB zoo tuaj yeem ncav cuag 10,000 zaug. Hluav taws xob lub neej yog hais txog tus naj npawb ntawm lub sij hawm nws ua hauj lwm nyob rau hauv load ntawm cov ntsuas tam sim no, feem ntau tsis pub tsawg tshaj 2,000 zaug. Nws cov khoom tseem ceeb sab hauv (xws li kev sib cuag, kev sib txuas lus, thiab cov khoom siv caij nplooj ntoos hlav) yog ua los ntawm cov ntaub ntawv muaj zog (xws li cov khoom siv nyiaj hlau thiab phosphor bronze conductive qhov chaw), thiab los ntawm kev ua tiav thiab kev kho cua sov, lawv hnav tsis kam, corrosion resistance, thiab qaug zog tiv thaiv kom ruaj khov txawm tias tom qab siv mus ntev.

3. Lub peev xwm tawg tau yoog raws li qhov yuav tsum tau ua

Kev muaj peev xwm tawg yog hais txog qhov siab tshaj plaws luv luv tam sim no tus nqi uas MCB tuaj yeem ua rau muaj kev nyab xeeb nyob rau hauv cov xwm txheej tshwj xeeb, thiab nws yog qhov ntsuas tseem ceeb rau kev ntsuas nws lub peev xwm tiv thaiv luv luv. Nyob ntawm daim ntawv thov scenarios, lub peev xwm tawg ntawm MCB tuaj yeem muab faib ua ntau theem, xws li:

Hauv cov xwm txheej pej xeem, MCBS uas muaj peev xwm tawg ntawm 6kA lossis 10kA feem ntau yog siv, uas tuaj yeem daws qhov teeb meem luv luv hauv tsev neeg lossis chaw lag luam me.

Hauv kev muaj xwm txheej kev lag luam, MCBs nrog lub peev xwm tawg ntau dua (xws li 15ka thiab 25ka) yuav tsum hloov chaw ib puag ncig nrog cov khoom siv tuab thiab cov loj luv-corcuit.

Lub realization ntawm tawg peev xwm cia siab rau ib tug optimized arc extinguishing system (xws li ib daim phiaj arc extinguishing chamber). Thaum lub sij hawm luv luv-circuit breaking, lub arc yog sai nkag mus rau hauv lub arc extinguishing chamber, thiab lub arc muab faib ua ntau yam luv luv arcs los ntawm cov hlau daim phiaj, txo cov arc voltage thiab sai tua cov arc tiv thaiv kev puas tsuaj rau lub sab hauv ntawm lub Circuit Court breaker vim high arc kub.

Iii. Cov yam ntxwv thiab kev ua haujlwm: Miniaturization thiab yooj yim

Compact loj thiab yooj yim rau nruab

MCB tau txais kev tsim qauv, yog qhov loj me (feem ntau nrog cov qauv qauv xws li 18mm lossis 36mm hauv qhov dav), thiab tuaj yeem ntsia ncaj qha rau ntawm cov ntsia hlau ntawm cov thawv ntim khoom lossis cov khoom faib khoom, txuag chaw teeb tsa. Nws cov qauv compact ua rau muaj kev tiv thaiv ywj pheej ntawm ntau lub voj voog hauv ib qho chaw faib hluav taws xob tsawg. Piv txwv li, nyob rau hauv ib lub tsev faib lub thawv, ntau yam MCBS tuaj yeem siv los tswj cov kab sib txawv xws li teeb pom kev zoo, lub qhov (socket), thiab cov tshuab cua txias raws li, ua tiav kev tiv thaiv thiab kev tswj xyuas, uas yooj yim rau kev kuaj xyuas qhov txhaum thiab kev siv hluav taws xob.

2. Yooj yim rau kev khiav lag luam thiab yooj yim los tswj

Kev khiav hauj lwm mechanism ntawm MCB yog tsim humanized. Qhov kaw ("ON "txoj haujlwm) thiab qhib ("OFF" txoj haujlwm) ua tiav los ntawm tus kov. Cov xwm txheej ntawm tus kov tau pom meej meej, tso cai rau kev txiav txim siab ntawm lub voj voog ntawm lub xeev on-off. Tom qab qhov kev ua txhaum TRIP, tus kov yuav cia li nyob rau hauv nruab nrab txoj hauj lwm ("TRIP" txoj hauj lwm), pab cov neeg siv kom ceev nrooj txheeb xyuas lub faulty Circuit Court. Thaum rov pib dua, tsuas yog txav tus kov mus rau txoj haujlwm "OFF" thiab tom qab ntawd thawb nws mus rau "ON" txoj haujlwm. Tsis xav tau cov cuab yeej tshaj lij thiab kev ua haujlwm yooj yim. Hauv kev saib xyuas txhua hnub, MCB tsis xav kom muaj kev debugging lossis tshuaj xyuas. Nws tsuas yog xav tau kev kuaj xyuas tsis tu ncua los xyuas kom meej tias qhov zoo li qub thiab kev ua haujlwm yog du, ua rau cov nqi tu qis.

3. Kev rwb thaiv tsev zoo heev

Txhawm rau kom muaj kev nyab xeeb hluav taws xob, cov casing thiab cov khoom siv insulating sab hauv ntawm MCB yog ua los ntawm high-voltage thiab high-temperature resistant insulating cov ntaub ntawv (xws li thermosetting plastics thiab nplaim-retardant ABS), nrog rau cov rwb thaiv tsev ntawm ≥100MΩ, muaj peev xwm tiv taus 2500V AC voltage tiv thaiv kev sim (tsis muaj kev sib tsoo lossis flashover hauv 1 feeb). Nws tseem tuaj yeem tswj xyuas cov rwb thaiv tsev zoo hauv qhov chaw hnyav xws li dampness thiab plua plav, tiv thaiv kev xau los yog theem-rau-theem luv Circuit Court, thiab xyuas kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm thiab cov khoom siv.

Iv. Expanded Functions and Adaptability: Sib ntsib ntau yam kev thov

1. Diversify hom derived

Ntxiv rau qhov yooj yim tshaj dhau thiab kev tiv thaiv luv luv, MCB tuaj yeem ua tau raws li qhov xav tau ntawm cov xwm txheej sib txawv los ntawm kev ua haujlwm nthuav dav. Common derivative hom muaj xws li:

- MCB nrog kev tiv thaiv to (RCBO): Nws koom ua ke ib qho kev kuaj pom pom los ntawm lub hauv paus ntawm MCB li niaj zaus. Thaum muaj qhov xau tshwm sim hauv Circuit Court (qhov seem tam sim no tshaj 30mA), nws tuaj yeem mus sai sai los tiv thaiv kev sib tsoo hluav taws xob thiab siv dav hauv cov khoom siv hluav taws xob hauv tsev.

- MCB nrog kev tiv thaiv overvoltage / undervoltage: Tsis siv neeg mus ncig thaum cov kab hluav taws xob hluav taws xob siab dhau lossis qis dhau los tiv thaiv cov khoom siv rhiab xws li lub tub yees thiab cua txias los ntawm kev puas tsuaj los ntawm kev hloov hluav taws xob.

- Kho qhov ntsuas tam sim no MCB: Kho tus nqi tam sim no los ntawm lub pob qhov rooj, haum rau cov xwm txheej uas cov khoom thauj tam sim no yuav tsum tau hloov kho kom yooj yim.

2. Muaj zog ib puag ncig adaptability

MCB tuaj yeem ua haujlwm ruaj khov nyob rau hauv ntau qhov chaw ib puag ncig, feem ntau siv tau nyob rau hauv qhov kub ntawm -5 ℃ txog 40 ℃ (cov qauv tshwj xeeb tuaj yeem txuas ntxiv mus rau -25 ℃ txog 70 ℃), nrog cov av noo ntawm ≤ 95% (tsis muaj condensation), thiab tuaj yeem hloov mus rau cov kev nyab xeeb ntawm cov cheeb tsam sib txawv. Lub caij no, nws cov qauv sab hauv muaj qee lub peev xwm los tiv thaiv kev co thiab kev poob siab, thiab tuaj yeem ua haujlwm tau zoo hauv cov chaw lag luam lossis tsheb thauj mus los (xws li nkoj thiab tsheb ua si) nrog kev co me ntsis.

Qhov sib txawv ntawm lwm yam Circuit Court breakers:

MCB (Miniature Circuit Breaker): Feem ntau yog siv rau kev tiv thaiv Circuit Court nrog qis tam sim no (feem ntau tsawg dua 100 amperes).

MCCB (Molded Case Circuit Breaker): Nws yog siv rau kev tiv thaiv Circuit Court nrog cov hluav taws xob siab dua (feem ntau ntau dua 100 amperes) thiab tsim nyog rau cov khoom siv loj thiab cov khoom siv hluav taws xob.

RCBO (Leakage Circuit Breaker): Nws ua ke nrog kev tiv thaiv overcurrent thiab kev tiv thaiv kev ua haujlwm, thiab tuaj yeem tiv thaiv Circuit Court los ntawm overload, luv Circuit Court thiab to.