Fuse, feem ntau hu ua kev pov hwm, yog ib qho ntawm cov khoom siv hluav taws xob tiv thaiv yooj yim tshaj plaws. Thaum cov khoom siv hluav taws xob nyob rau hauv daim phiaj hluav taws xob lossis Circuit Court overload lossis luv Circuit Court tshwm sim, nws tuaj yeem yaj thiab tawg rau hauv Circuit Court nws tus kheej, tsis txhob siv cov hluav taws xob hluav taws xob thiab cov khoom siv hluav taws xob puas tsuaj vim yog thermal cuam tshuam ntawm overcurrent thiab hluav taws xob hluav taws xob, thiab tiv thaiv kev sib kis ntawm cov khoom siv hluav taws xob. xwm txheej.
Ib, qauv ntawm fuse
Thawj tsab ntawv R sawv cev rau fuse.
Tsab ntawv thib ob M txhais tau tias tsis muaj cov khoom ntim kaw hom;
T txhais tau tias packed kaw raj hom;
L txhais tau tias kauv;
S sawv rau daim ntawv ceev;
C stands rau porcelain insert;
Z stands rau self-duplex.
Qhov thib peb yog tus tsim code ntawm lub fuse.
Qhov thib plaub sawv cev rau qhov ntsuas tam sim no ntawm lub fuse.
Ob, kev faib cov fuses
Raws li cov qauv, fuses tuaj yeem muab faib ua peb pawg: qhib hom, hom kaw ib nrab thiab kaw hom.
1. Qhib hom fuse
Thaum lub yaj tsis txwv lub arc nplaim taws thiab hlau melting hais ejection ntaus ntawv, tsuas yog haum rau disconnecting luv luv Circuit Court tam sim no tsis loj zaus, no fuse yog feem ntau siv nyob rau hauv ua ke nrog nrog riam hloov.
2. Semi-enclosed fuse
Lub fuse yog ntsia rau hauv ib lub raj, thiab ib los yog ob qho kawg ntawm lub raj yog qhib. Thaum lub fuse yog melted, lub arc nplaim taws thiab hlau melting hais yog ejected nyob rau hauv ib tug tej yam kev taw qhia, uas yuav txo tau ib co kev raug mob rau cov neeg ua hauj lwm, tab sis nws tseem tsis muaj kev ruaj ntseg txaus thiab kev siv yog txwv rau ib tug tej yam kev mob.
3. Npog fuse
Lub fuse raug kaw tag nrho hauv lub plhaub, tsis muaj arc ejection, thiab yuav tsis ua rau muaj kev phom sij rau cov neeg nyob ze uas ya arc thiab cov neeg ua haujlwm nyob ze.
Peb, fuse qauv
Lub fuse feem ntau yog tsim los ntawm cov yaj thiab lub fuse raj lossis lub fuse yas dhos uas lub yaj raug ntsia.
1.Melt yog ib qho tseem ceeb ntawm cov fuse, feem ntau ua rau hauv cov ntaub lo lo ntxhuav los yog ntawv. Muaj ob hom khoom yaj, ib qho yog cov khoom siv melting tsawg, xws li txhuas, zinc, tin thiab tin-lead alloy; Lwm qhov yog cov khoom siv melting siab, xws li nyiaj thiab tooj liab.
2.Lub yaj lub raj yog lub plhaub tiv thaiv ntawm yaj, thiab muaj cov nyhuv ntawm extinguishing arc thaum lub yaj yog fused.
Plaub, fuse parameter
Cov yam ntxwv ntawm lub fuse yog hais txog qhov tsis sib xws ntawm lub fuse lossis lub fuse tuav, tsis yog qhov ntsuas ntawm cov yaj.
1. Melt parameters
Lub yaj muaj ob qhov ntsuas, qhov ntsuas tam sim no thiab lub fuse tam sim no. Rated tam sim no hais txog tus nqi ntawm qhov tam sim no uas dhau los ntawm lub fuse rau lub sijhawm ntev yam tsis muaj kev tawg. Lub fuse tam sim no feem ntau yog ob zaug ntawm qhov ntsuas tam sim no, feem ntau los ntawm cov yaj tam sim no yog 1.3 npaug ntawm qhov ntsuas tam sim no, yuav tsum tau fused hauv ntau tshaj ib teev; 1.6 zaug, yuav tsum tau fused hauv ib teev; Thaum lub fuse tam sim no mus txog, lub fuse tawg tom qab 30 ~ 40 vib nas this; Thaum 9 ~ 10 npaug ntawm qhov ntsuas tam sim no mus txog, cov yaj yuav tsum tawg tam sim ntawd. Lub yaj muaj qhov kev tiv thaiv tus yam ntxwv ntawm lub sijhawm hloov pauv, qhov loj dua tam sim no ntws los ntawm cov yaj, lub sijhawm luv dua.
2. Vuam yeeb nkab tsis
Lub fuse muaj peb qhov tsis muaj, xws li ntsuas hluav taws xob, ntsuas tam sim no thiab muaj peev xwm txiav tawm.
1) Qhov ntsuas hluav taws xob tau thov los ntawm Lub kaum sab xis ntawm arc extinguishing. Thaum lub zog ua haujlwm ntawm lub fuse ntau dua li qhov ntsuas hluav taws xob, tej zaum yuav muaj kev phom sij uas lub arc tsis tuaj yeem tua thaum lub yaj tawg.
2) Qhov ntsuas tam sim no ntawm lub raj molten yog tus nqi tam sim no txiav txim siab los ntawm qhov tso cai kub ntawm lub raj molten rau lub sijhawm ntev, yog li lub raj molten tuaj yeem thauj khoom nrog cov qib sib txawv ntawm cov ntsuas tam sim no, tab sis cov ntsuas tam sim no ntawm lub raj molten tuaj yeem ua tau. tsis yog ntau tshaj qhov ntsuas tam sim no ntawm lub raj molten.
3) Lub peev xwm txiav tawm yog qhov siab tshaj plaws tam sim no tus nqi uas tuaj yeem txiav tawm thaum lub fuse raug txiav tawm ntawm qhov kev ua txhaum hauv Circuit Court ntawm qhov ntsuas hluav taws xob.
Tsib, lub hauv paus ntsiab lus ua haujlwm ntawm lub fuse
Cov txheej txheem fuse ntawm lub fuse yog kwv yees muab faib ua plaub theem:
1. Lub yaj yog nyob rau hauv series nyob rau hauv lub Circuit Court, thiab lub load tam sim no ntws los ntawm lub yaj. Vim tias cov thermal nyhuv ntawm qhov tam sim no yuav ua rau lub melting kub nce, thaum lub Circuit Court overload los yog luv luv Circuit Court tshwm sim, lub overload tam sim no los yog luv luv Circuit Court tam sim no yuav ua rau melting kub thiab ncav cuag lub melting kub. Qhov siab dua qhov tam sim no, qhov kub nce sai dua.
2. Cov yaj yuav yaj thiab evaporate mus rau hauv cov hlau vapor tom qab ncav lub melting kub. Qhov siab dua tam sim no, lub sij hawm melting luv luv.
3. Lub sij hawm lub melts melts, muaj ib tug me me rwb thaiv tsev sib txawv nyob rau hauv lub Circuit Court, thiab tam sim no cuam tshuam dheev. Tab sis qhov sib txawv me me no tau tawg tam sim ntawd los ntawm qhov hluav taws xob hauv Circuit Court, thiab hluav taws xob arc yog tsim, uas nyob rau hauv lem txuas lub circuits.
4. Tom qab lub arc tshwm sim, yog tias lub zog txo qis, nws yuav tua tus kheej nrog kev nthuav dav ntawm qhov sib txawv ntawm fuse, tab sis nws yuav tsum tau cia siab rau kev ntsuas hluav taws xob ntawm lub fuse thaum lub zog loj. Txhawm rau txo lub sijhawm arc extinguishing thiab ua rau kom muaj peev xwm tawg, lub peev xwm loj fuses tau nruab nrog kev ntsuas arc extinguishing zoo meej. Qhov loj dua lub arc extinguishing muaj peev xwm yog, qhov ceev ntawm arc yog extinguished, thiab qhov loj dua qhov luv luv Circuit Court tam sim no tuaj yeem tawg los ntawm fuse.
Rau, kev xaiv ntawm fuse
1. Xaiv cov fuses nrog cov qib voltage raws li lub zog hluav taws xob hluav taws xob;
2. Xaiv cov fuses uas muaj peev xwm tawg tau raws li qhov siab tshaj plaws tam sim no uas yuav tshwm sim hauv kev faib khoom;
3, lub fuse nyob rau hauv lub cev muaj zog Circuit Court tiv thaiv luv luv Circuit Court, kom tsis txhob muaj lub cev muaj zog nyob rau hauv tus txheej txheem ntawm pib lub fuse, rau ib lub cev muaj zog, qhov ntsuas tam sim no ntawm cov yaj yuav tsum tsis pub tsawg tshaj 1.5 ~ 2.5 npaug ntawm cov ntsuas tam sim no. ntawm lub cev muaj zog; Rau ntau lub cev muaj zog, tag nrho cov ntsuas tam sim no yuav tsum tsis pub tsawg dua 1.5 ~ 2.5 npaug ntawm qhov ntsuas tam sim no ntawm lub siab tshaj plaws muaj peev xwm lub cev muaj zog ntxiv rau suav cov load tam sim no ntawm tus so ntawm cov motors.
4. Rau luv luv-circuit tiv thaiv teeb pom kev zoo los yog hluav taws xob rauv thiab lwm yam loads, cov rated tam sim no ntawm yaj yuav tsum sib npaug zos rau los yog me ntsis ntau tshaj qhov ntsuas tam sim no ntawm lub load.
5. Thaum siv fuses los tiv thaiv kab, fuses yuav tsum tau muab tso rau ntawm txhua theem kab. Nws yog txwv tsis pub txhim kho fuses ntawm cov kab nruab nrab hauv ob-theem peb-xaim lossis peb-theem plaub-xaim Circuit Court, vim tias cov kab nruab nrab yuav ua rau muaj qhov tsis sib xws, uas tuaj yeem hlawv cov khoom siv hluav taws xob. Ntawm cov kab ib-theem muab los ntawm pej xeem daim phiaj, fuses yuav tsum tau nruab rau ntawm cov kab nruab nrab, tsis suav nrog tag nrho cov fuses ntawm daim phiaj.
6. Txhua theem ntawm fuses yuav tsum koom tes nrog ib leeg thaum siv, thiab cov ntsuas tam sim no ntawm cov yaj yuav tsum me dua li ntawm qib siab.
Post lub sij hawm: Mar-14-2023