Ua rau thiab Countermeasures of Abnormal Tripping of Stabilized Power Supply
Thaum tib neeg siv qee cov khoom siv fais fab, lawv feem ntau ntsib qhov tshwm sim no. Thaum lub hwj chim qhib, cov cuab yeej tiv thaiv overcurrent mus ncig dheev, thiab tam sim no nyob rau hauv kev siv yog qis dua qhov ntsuas tam sim no ntawm cov khoom tiv thaiv overcurrent; qee zaum nws mus ncig ntau zaus thaum siv. Hauv kev tsim cov khoom siv hluav taws xob tswj hwm, feem ntau muaj ob txoj kev tiv thaiv tam sim no thiab voltage. Muaj ntau qhov laj thawj rau kev poob qis: qee qhov yog vim tias lub peev xwm ntawm lub tshuab hloov pauv hauv kev tswj hwm lub zog tsis txaus, qee cov tuam txhab txiav cov fab kom txo tau cov nqi, thiab qhov zoo ntawm kev ua haujlwm tsis tuaj yeem dhau qhov kev xeem. Yog hais tias qhov input voltage tsawg, tam sim no ntawm transformer yuav loj heev. Yog li ntawd, nws yog ib qho yooj yim los tsim kom muaj cua sov thiab ua rau lub coil hlawv tawm, yog li kev tiv thaiv tam sim no tus nqi yog txhob txwm txo qis, ua rau cov khoom tiv thaiv overcurrent mus ncig ntau zaus; lwm qhov yog qhov teeb meem ntawm qhov zoo ntawm cov khoom ntawm cov khoom tiv thaiv nws tus kheej; yog tias cov teeb meem no tsis muaj, nws ruaj khov. Lub tshuab hluav taws xob tswj hluav taws xob ntawm lub tshuab hluav taws xob piezoelectric tsis tau nruab nrog cov cuab yeej muag muag hauv kev tsim, uas ua rau cov hluav taws xob tam sim no ntawm cov khoom siv hluav taws xob tswj kom ua rau tsis muaj zog thaum nws qhib. Lwm qhov laj thawj yog tias qhov input voltage ntawm daim phiaj hluav taws xob tsawg dhau los yog siab dhau, uas tau dhau qhov kev siv ntawm kev tswj hwm lub zog. Lub tshuab hluav taws xob tsawg lossis hluav taws xob tiv thaiv hluav taws xob ntawm cov khoom siv hluav taws xob tswj tau raug qhib los tiv thaiv cov khoom siv hauv tsev, uas yog ib txwm ua haujlwm. daws
Peb tuaj yeem xav txog cov teeb meem no los ntawm cov hauv qab no:
1. Lub load sib xws rau cov tswj fais fab mov
Lub load muaj kev sib raug zoo nrog lub peev xwm thiab input voltage ntawm cov tswj fais fab mov. Nyob rau hauv cov ntaub ntawv ntawm ib tug tej yam load, yog hais tias lub voltage ntawm lub hwj chim daim phiaj yog tsawg, ces cov tswj fais fab mov yuav tsum tau xaiv.
Xaiv tus qauv nrog lub peev xwm loj dua thiab ntau qhov kev tawm tswv yim. Rau cov khoom siv hauv tsev nrog inductive loads, xws li cov cua txias thiab cov tub yees, uas muaj qee qhov yuav tsum tau muaj ntawm cov khoom siv hluav taws xob, cov zis voltage precision yuav tsum raug xaiv.
Qhov ntsuas kub yog 200V ± 10 feem pua thiab muaj kev tswj hwm lub zog hluav taws xob nrog cov khoom siv hluav taws xob thiab lub sijhawm ncua kev tiv thaiv kom tsis txhob muaj kev puas tsuaj rau cov khoom siv hauv tsev.
2. Kev xaiv cov khoom siv
Qhov zoo ntawm cov khoom yuav cuam tshuam rau kev ua haujlwm ib txwm muaj ntawm cov khoom siv hluav taws xob tswj hwm, yog li cov tuam ntxhab yuav tsum nruj me ntsis tswj thaum yuav cov khoom kom tsis txhob ua haujlwm tsis zoo ntawm cov khoom siv hluav taws xob.
3. Kev tsim qauv tsim ntawm lub voj voog
Txij li qee cov khoom siv hluav taws xob tswj tsis tau muaj cov cuab yeej muag muag hauv kev tsim, qhov reactance me me, thiab qhov tam sim no surge tam sim no tuaj yeem ncav cuag ob peb zaug lossis ntau zaus ntawm qhov kev ua haujlwm tam sim no.
Yuav kom daws tau qhov teeb meem no, qhov inductance ntawm transformer tuaj yeem nce ntxiv, tab sis tus nqi nce ntau dhau.
Tom qab xa mus rau cov ntaub ntawv cuam tshuam thiab ntau qhov kev ntsuam xyuas, peb xav tias ntxiv rau kev hloov kho lub sij hawm tsis tu ncua ntawm qhov siv hluav taws xob, piv txwv qhov hluav taws xob thiab qhov sib piv qhov hluav taws xob kom txo qis kev ua haujlwm tsis zoo, qhov pib hluav taws xob tuaj yeem raug xaiv raws li qhov xwm txheej. Hom Circuit Court no feem ntau ntxiv qhov muag-pib relay mus rau qhov qub circuit. Thaum lub hwj chim tswj tau nyob rau hauv lub xeev tam sim ntawm pib, lub soft-start relay tsis ua. Lub sijhawm no, qhov hluav taws xob hluav taws xob yog qhov loj tshaj plaws, txo qhov hluav taws xob tam sim no, thiab tom qab ntawd qhov muag-pib relay ua haujlwm. Lub fais fab mov regulator yog nyob rau hauv kev ua hauj lwm, yog li daws qhov tripping phenomenon tshwm sim los ntawm lub instantaneous surge tam sim no generated los ntawm kev pib.
