Taw qhia thiab xaiv fuse rau PDU tub ntxhais hluav taws xob qhov chaw-lub ntsiab tswj roj teeb
Cov phooj ywg uas tau ntsib cov khoom lag luam tsoo thaum lub Ib Hlis 2016 yuav tsum paub lo lus tshiab, uas yog," fuse." Yog lawm, nws tau pib txij Lub Ib Hlis 4 txog 7 thaum lub khw muag khoom qhib hauv 2016, Suav cov tub ua lag luam nyob hauv Suav tau muaj cov coaster coaster-nce thiab nqis qis. Vim tias qhov kev siv ntawm Circuit Court breaker mechanism, 4 lub tshuab hluav taws xob tau tsim tawm hauv 4 hnub sib law liag, thiab cov khoom lag luam tau tso tawm 7,5 trillion yuan, yuam cov Shanghai thiab Shenzhen Tshuag Sib Pauv kev tshaj tawm thaum hmo ntuj tias qhov kev siv ntawm Circuit Court breaker mechanism yuav raug ncua txij lub Ib Hlis 8. Cov ntawv no tseem hais txog lub foob pob hluav taws kawg rau kev tiv thaiv hluav taws xob ntau hauv cov tsheb tshiab lub zog hluav taws xob - fuse (fuse yog qhov kev tiv thaiv zoo kawg nkaus thaum txhua lwm cov kev tiv thaiv swb).
Cov chaw thov kev siv fuses yog qhov dav heev, xws li lub khw muag khoom kub kub hauv ob peb xyoos dhau los, thiab thaj chaw ntawm cov tsheb tshiab zog xws li DC them piles, DC, kav dej PTC them, cov cua kub PTC, roj teeb hluav taws xob, hloov hluav taws xob, cov thawv hluav taws xob siab, hluav taws xob cua txias, thiab lwm yam Thaum nws los txog rau cov chaw uas qhov xav tau hluav taws xob muaj kev tiv thaiv, cov hauv qab no tsuas yog tham txog daim ntawv thov hauv PUD.
Cia' s thawj saib lub thawv hluav taws xob loj lub zog faib rau lub thawv, xa mus rau PDU (Cov Faib Faib Cov Hluav Taws Xob), lub tshuab hluav taws xob loj nyob hauv cov hluav taws xob loj uas muaj kev daws teeb meem rau cov tsheb hluav taws xob tshiab. Siv hluav taws xob txuas hluav taws xob muaj hluav taws xob ntau dhau los ntawm kev caij busbars thiab cov hlua hluav taws xob txhawm rau txhawm rau them nqi thiab tawm hluav taws xob tswj rau lub tshuab hluav taws xob high-voltage ntawm lub zog tsheb tshiab, tswj fais fab ntawm cov hluav taws xob high-voltage Cheebtsam, Circuit Court overload luv luv tiv thaiv, kev ntsuas hluav taws xob loj kev tswj qhov hluav taws xob tsawg, thiab lwm yam, los tiv thaiv thiab saib xyuas kev ua haujlwm ntawm lub ntsuas hluav taws xob siab. PDU tseem tuaj yeem muab sib xyaw BMS tseem ceeb tswj, them nyiaj module, DC module, PTC tswj module thiab lwm yam haujlwm. Piv nrog rau tsoos PDU, nws muaj ntau lub tsheb muaj nuj nqi, uas muaj kev sib xyaw ntau dua thiab muaj ntau yam ntxiv hauv cov qauv. Nws muaj dej ua cua txias lossis cua txias, thiab lwm yam. PDU teeb tsa tau yooj yim thiab tuaj yeem kho thiab tsim kho raws li cov neeg siv khoom kom ua tau raws li qhov xav tau ntawm cov neeg siv khoom sib txawv thiab cov qauv sib txawv. BDU (Cov Hluav Taws Xob Kaw Hluav Taws Xob) roj teeb pob hluav taws xob Circuit Court breaker unit, tsim tshwj xeeb rau sab hauv lub roj teeb pob, kuj yog hom hluav taws xob hluav taws xob faib lub thawv hluav taws xob.
Taw qhia rau lub hauv paus ntsiab lus ntawm fuse fusing:
Fuse muaj nuj nqi: Raws li ib txwm muaj, lub fuse ua raws li kev sib txuas hauv Circuit Court; nyob rau hauv lub cev tsis xwm yeem (tshaj dhau), lub fuse ua raws li kev tiv thaiv kev nyab xeeb nyob hauv Circuit Court, thiab kev nyab xeeb txiav tawm thiab tiv thaiv Circuit Court dhau ntawm nws tus kheej fuse. Kev ua haujlwm ntawm fuse yog tiv thaiv cov khoom siv hluav taws xob thiab tiv thaiv kev puas tsuaj rau cov khoom siv hluav taws xob vim muaj ntau dhau.
Lub fuse ntawm fuse yog ua los ntawm cov yaj ntawm cov yaj los ntawm lub zog lub zog tso tawm los ntawm overcurrent, thiab lub zog uas tuaj yeem tshuab lub fuse yog lub tshav kub melting ntawm fuse Kuv * Kuv * t (Q=Kuv * Kuv * t * R, R Nws yog tus nqi ruaj khov) .Lub ntsiab lus, ntev npaum li lub zog yuav tsum tau yaj lub fuse ntau dua li lub zog tso tawm los ntawm lub zog tam sim no, lub fuse yuav tsis tshuab, uas yog, lub fuse tuaj yeem tiv taus qhov cuam tshuam ntawm cov mem tes no, thiab feem ntau qeeb qeeb Tshuab Hom fuses muaj cov yam ntxwv no.
Yog li puas tau muaj kev hloov dab tsi hauv cov fuse uas tiv rau cov mem tes sai sai? Nws nyob ntawm ntau npaum li cas ua rau nws puas tsuaj los ntawm cov mem tes. Yog hais tias lub zog hluav taws xob muaj ntau dua li lub melting tshav kub zog ntawm lub fuse, thiab qhov cuam tshuam ntawm fuse yog tsawg heev, ces lub fuse tuaj yeem lees txais ntau yam cuam tshuam yam tsis tau tawg. Ntawm qhov tsis sib thooj, yog tias lub zog pulse yog nyob ze rau lub tshav kub melting ntawm fuse, lub fuse raug cuam tshuam. Thaum qhov kev puas tsuaj loj heev, tom qab ntawd nws tsis tuaj yeem tiv taus qhov cuam tshuam thib ob, uas yog hais: lub fuse yuav raug puas tsuaj rau qee yam tom qab raug rau txhua qhov kev cuam tshuam mem tes, uas yog, nws cov mem tes tsis kam muaj peev xwm me ntsis los yog I * I * t raug txo qis, qhov ntsuas ntawm qhov kom ua tiav lossis txo qis yog sib npaug rau lub zog ntawm cov mem tes.
Yog tias peb xav tau lub fuse los tiv nrog kev cuam tshuam ntawm ntau cov instantaneous pulses, peb yuav tsum muab cov npoo txaus ntawm I * I * t thiab lub zog mem tes ntawm lub fuse. Cov khoom siv hluav taws xob sib txawv yuav tsum tiv cov pulses vim lawv cov kev pabcuam sib txawv hauv lub neej thiab hloov zaus. Tus naj npawb ntawm lub sij hawm kuj sib txawv, yog li tus neeg xa khoom ntawm fuse yuav tsum muab cov ntaub ntawv sib txheeb, uas yog, sib xws rau cov sij hawm sib txawv, koj yuav tsum xaiv ntau qhov sib txawv ntawm cov fuse' s Kuv * Kuv * t rau qhov lub zog ua mem tes. Nov tsuas yog kwv yees ntxhib, raug xaiv Qhov yuav tsum tau txais los ntawm kev suav cov ntaub ntawv tshwj xeeb.