Lub siab voltage fuse, tseem hu ua high breaking peev AC high voltage tam sim no limiting fuse, muaj ob yam nram qab no: ib tug muaj peev xwm ua txhaum luv luv Circuit Court tam sim no (siab tawg muaj peev xwm); Qhov thib ob, nws muaj kev txwv tam sim no tseem ceeb, thiab tam sim no tau raug txiav tawm ua ntej qhov luv-circuit tam sim no ncav cuag tus nqi siab tshaj.
High voltage fuses tuaj yeem muab faib ua cov fuses thaub qab, universal fuses thiab fuses rau kev tiv thaiv tag nrho.
Backup fuse tuaj yeem qhib Circuit Court fuse tube 2-3 zaug ntawm qhov ntsuas tam sim no mus rau qhov siab tshaj plaws ntsuas qhov txhaum tam sim no, nruab nrab ntawm qhov qhib Circuit Court tam sim no dav dav fuse tuaj yeem qhib Circuit Court los ntawm ib teev ntawm qhov tam sim no mus rau qhov loj tshaj plaws qhib Circuit Court tam sim no ntsuas ntawm qhov txhaum tam sim no, tag nrho ntau yam kev tiv thaiv nrog fuse tuaj yeem qhib ntau dua li qhov ntsuas tam sim no mus rau qhov siab tshaj plaws qhib qhov hluav taws xob tam sim no ntawm qhov txhaum tam sim no.
Qhov qis tshaj tam sim no tawg kev ua haujlwm ntawm quartz xuab zeb yog qhov tsis zoo, uas yog ib qho teeb meem nyuaj los daws. Txhawm rau txhim kho qhov tsis tshua muaj hluav taws xob tam sim no tawg ua haujlwm ntawm kev txwv tam sim no thiab ua tiav cov kev tiv thaiv sib txawv, ntau yam kev ntsuas tau ua tau zoo, xws li hloov cov qauv yaj lossis sib txuas nrog ntau hom fuses. Cov qauv piav qhia hauv qab no yog ua raws li qhov no.
(1) Kev kub siab tag nrho cov fuse tsim los ntawm kev txwv tsis pub khiav thiab dav hlau hom. Vim tias qhov kev txwv tam sim no ntawm cov xuab zeb quartz, qhov kev txwv tam sim no muaj lub peev xwm los rhuav tshem qhov txhaum loj tam sim no, thaum nws nyuaj rau kev ua txhaum qhov qis tshaj tam sim no. Lub dav hlau fuse muaj lub zog tawg ua haujlwm rau qhov tsis tshua muaj hluav taws xob tam sim no, tab sis nws nyuaj rau ua txhaum qhov txhaum tam sim no. Kev sib xyaw ntawm ob qhov zoo tuaj yeem tsim kom muaj ntau yam fuse. Lub dav hlau ib feem siv lub dav hlau me me, cov yeeb nkab yog tsim los ntawm cov khoom siv roj, thiab cov ejected arc yog absorbed los ntawm quartz xuab zeb thiab lwm yam arc extinguishing media.
Tag nrho cov fuse yog tsim los ntawm kev txwv tam sim no thiab lub tshuab nqus tsev. Cov yam ntxwv ntawm lub tshuab nqus tsev fuse yog tias nws tsis tuaj yeem txwv qhov tam sim no rau qhov siab tam sim no, tab sis yooj yim tawg rau qhov tsis tshua muaj tam sim no. Kev sib xyaw ua ke ntawm ob muab kev tiv thaiv tag nrho.
⑶ Lub melting yog ib tug puv-ntau fuse tsim los ntawm ob hlau nrog txawv melting ntsiab lus nyob rau hauv series. Lub yaj ntawm lub fuse yog tsim los ntawm ib tug hlau uas tsis tshua muaj melting point (xws li kub silicon alloy) nyob rau hauv nruab nrab ntawm lub ribbon silver yaj, thiab lub auxiliary arc extinguishing raj rau roj ntau lawm yog teem sab nraum. Cov hlau uas tsis tshua muaj melting point yog siv los tawg me me tam sim no, thiab cov nyiaj yaj yog siv los txwv thiab tawg tam sim no loj. Qhov no yuav ua rau tag nrho cov fuse kom ntseeg tau tawg los ntawm qhov tsawg kawg nkaus melting tam sim no mus rau qhov ntsuas siab tshaj plaws tawg tam sim no.
(4) Metallurgical nyhuv cov ntsiab lus tau siv los txhim kho qhov kev ua tau zoo ntawm kev txwv tam sim no fuses nrog tsawg dhau qhov txhaum tam sim no. Nws yog nyob rau hauv cov dej ntws limiting fuse sawb nyiaj melting nto deposited nrog tsawg melting point hlau pob (xws li tin hlaws, thiab lwm yam), thiaj li hais tias siv metallurgical nyhuv rau yaj nyob rau hauv me me overload tam sim no, tawg tsawg tshaj tam sim no, thiab cov siv cov dej ntws limiting fuse kom tawg loj luv-circuit tam sim no.
Tag nrho ntau yam tam sim no limiting fuse siv cov neeg kho tshuab quab yuam kom sib nrug ntawm lub caj dab nqaim ntawm cov yaj uas ntws los ntawm cov khoom siv dhau tam sim no, zoo tua cov arc hauv cov xuab zeb quartz. Ua tiav lub hom phiaj ntawm kev tawg me me overload tam sim no. Cov qauv yog tias ib sab caj npab ntawm lub hnub qub pob txha yog hloov los ntawm ib tug pas nrig txav. Lub yaj nyob ib ncig ntawm tus pas nrig txav tau muaj lub caj dab nqaim tshwj xeeb kom tus pas nrig yog mechanically tawg thaum nws txav mus.
Cov xuab zeb nyob ze nws yuav tsis raug nyem. Cov pas nrig txav yog tsav los ntawm cov roj uas tsim los ntawm lub tshuab hluav taws xob roj. Lub overload tam sim no tsub kom qhov kev tiv thaiv ntawm lub hauv paus yaj mus txog rau thaum nws tshaj qhov thib ob melts. Cov tam sim no raug xa mus rau theem nrab yaj, ua rau lub thib ob yaj mus rau yaj, ignites lub tshuab hluav taws xob, tsim cov pa roj siab, thawb lub pas nrig txav los ntawm tus actuator, elongates lub overload tam sim no arc generated ntawm lub nqaim caj dab, txias hauv quartz xuab zeb. thiab extinguishes xoom hla.
⑹ Qhov no yog SF6 tag nrho cov fuse ntawm cov qauv tshwj xeeb. Lub hauv paus ntsiab lus ntawm arc extinguishing ntawm SF6 roj yog txawv los ntawm cov qauv hais saum toj no. Thaum qhov txhaum tam sim no ua rau yaj yaj thiab arc, lub arc yog tig, elongated thiab txias hauv SF6 roj nyob rau hauv qhov kev txiav txim ntawm magnetic teb kom txog rau thaum nws yog extinguished thaum tam sim no dhau xoom. Tsis muaj teeb meem tam sim no, tsuav yog nws tuaj yeem ua rau arc, nws yuav ua li no.
⑺ Parallel blast type tam sim no limiter rau thaj chaw cais. Nws yog txawm peem rau nrog dynamite lub tsheb npav loj thiab high voltage tam sim no limiting fuse nyob rau hauv parallel, nyob rau hauv kev tswj, nrhiav kom tau qhov system (xws li sensors thiab triggers, thiab lwm yam). Thaum lub kaw lus luv luv Circuit Court txhaum tshwm sim, sensors yuav ntes luv Circuit Court xa cov teeb liab mus rau tus maub los, tus maub los rau kev tsom xam, yog tias ntau tshaj qhov teeb tsa tus nqi, tuaj yeem teeb liab ua rau ignition, trigger ignition, tus poj niam kab, tsim cov cheeb tsam cais, Circuit Court yog tsis disconnect, txhaum tam sim no pauv mus rau lub parallel tam sim no-limiting fuse, ua tiav los ntawm tam sim no-limiting fuse qhib Circuit Court. Cov khoom no muaj ntau hom npe, qauv, lub hauv paus ntsiab lus zoo ib yam, ntau lub tuam txhab tsim khoom hauv tsev tau tsim, nws cov ntsuas tam sim no loj, qhov loj tshaj plaws txog li 5000 A, feem ntau yog siv rau lub tshuab hluav taws xob, fais fab nroj tsuag ceg tsheb loj thiab lub Hoobkas loj. kev tiv thaiv transformer.
Nws yog tsim nyog hais tias muaj ntau qhov txhaum tam sim no txwv tsis pub dhau lub tswv yim ntawm fuses, thiab lawv muaj impedance qis nyob rau hauv ib txwm muaj thiab siab impedance nyob rau hauv kev txhaum. Cov hom kev txwv tam sim no yog hom superconducting, hom hluav taws xob hluav taws xob, polymer PTC (zoo kub coefficient) yam tsis kam thiab lwm yam.
Kev xaiv kom raug thiab siv cov kev txwv tam sim no yog qhov tseem ceeb tshwj xeeb. Kev xaiv ntawm cov qauv tsis yooj yim thiab cov qauv, kev sib xyaw ua ke ntawm kev tiv thaiv cov yam ntxwv thiab cov khoom tiv thaiv thiab lwm yam yuav tsum tau xav txog. Kev xaiv ntawm qee qhov ntsuas yog qhov pom tseeb, thiab qee qhov yuav tsum tau suav kom raug. Tsis tas li ntawd, nws yog ib qho tsim nyog los xyuas kom meej qhov tseeb installation thiab txij nkawm ntawm fuses, uas yuav tsis tau piav qhia ntawm no.
Tam sim no, transformer tiv thaiv fuses nrog ib tus nqi tam sim no qis dua 500A, rau qhov muaj peev xwm loj dua kev tiv thaiv hluav taws xob kuj siv hluav taws xob tawg. Yog li ntawd, nws yog ib qho tsim nyog los tsim cov fuses nrog cov ntsuas siab dua tam sim no thiab qee cov khoom lag luam uas muaj ntau yam haujlwm thiab tus nqi qis. Hauv particular, ntxiv txhim kho qib ntawm cov cuab yeej tsim khoom, tsim cov yam ntxwv ntawm kev ruaj khov nkhaus yuam kev me me cov khoom zoo. Xyuas kom muaj kev nyab xeeb thiab txhim khu kev lag luam ntawm lub zog hluav taws xob.