Dab tsi yuav tsum tau kuaj xyuas thaum kho tau DC tswj fais fab puas lawm?
Nrog rau qhov muaj koob meej ntawm tus kheej cov khoom siv ntse ntse, nws tau dhau los ua ib qho tseem ceeb tshaj plaws txhua hnub khoom siv rau tib neeg. Dab tsi yog qhov laj thawj tseem ceeb rau kev puas tsuaj ntawm kev hloov kho DC tswj fais fab hauv kev siv txhua hnub? Hnub no peb yuav los saib cov kev daws teeb meem uas tau ntsib los ntawm cov engineers feem ntau.
1. Kab tsis ua hauj lwm
Cov kab tsis raug, xws li cov hlua hluav taws xob puas, tsis muaj peev xwm txuas rau lub hwj chim, oxidized contact terminals lossis kev sib cuag tsis zoo. Nws yog ib qho tseem ceeb los xyuas kom meej tias cov kab tawm tswv yim thiab cov kab tawm tau qhib. Yog tias muaj kab tsis ua haujlwm, nws tuaj yeem kho tau los ntawm kev hloov cov hlua hluav taws xob.
2. Cov zis voltage tsawg dhau
Lub ntsiab yog vim li cas rau qhov tsawg tso zis voltage yog:
1. Lub load ntawm lub adjustable DC stabilized fais fab mov yog luv luv - Circuit Court txhaum (tshwj xeeb tshaj yog lub DC / DC converter luv luv -circuited los yog muaj kev ua haujlwm tsis zoo). Nyob rau lub sijhawm no, koj tuaj yeem ua ntej txiav thiab kho tag nrho cov loads ntawm DC adjustable stabilized fais fab mov Circuit Court. Xyuas kom tseeb tias DC stabilized voltage yog lawm. Puas yog lub Circuit Court qhib los yog lub load Circuit Court qhib? Yog hais tias lub load Circuit Court qhib thiab qhov voltage tso zis yog ib txwm, nws txhais tau hais tias lub load yog hnyav heev. Yog tias nws tseem txawv txav, nws txhais tau hais tias qhov hloov kho DC Circuit Court yog faulty.
2. Qhov txhaum ntawm lub lim capacitor lossis rectifier diode ntawm qhov tso zis voltage sab tuaj yeem txiav txim siab los ntawm txoj kev sib pauv.
3. Qhov kev ua tau zoo ntawm lub arc- tua chamber txo qis, lub arc- tua chamber tsis tuaj yeem ua haujlwm ib txwm, qhov kev tiv thaiv sab hauv ntawm cov khoom siv hluav taws xob nce, thiab lub peev xwm thauj khoom poob qis.
4. Ib qho kev hloov pauv tsis zoo yuav tsis tsuas yog txo cov zis hluav taws xob, tab sis kuj ua rau tsis txaus excitation ntawm arc -extinguishing chamber, yog li ua rau lub arc -extinguishing chamber.
5. Lub 300V lim capacitor yog qhov tsis xws luag, uas yuav txo tau lub peev xwm thauj khoom thiab cov zis hluav taws xob ntawm lub hwj huam mov thaum txuas lub load.
3. Cov zis voltage siab dhau lawm
Cov zis hluav taws xob ntau dhau feem ntau yog tshwm sim los ntawm qhov voltage-stabilized induction circuits thiab voltage-stabilized control circuits. Nyob rau hauv ib lub voj kaw uas muaj DC tso zis, ib qho kev nkag siab resistor, ib qho kev paub yuam kev amplifier xws li TL431, optocoupler, lub hwj chim tswj nti, thiab lwm yam circuits, ib qho ntawm cov khoom ua rau cov zis voltage. Lub fuse yog qhov qub, tsis muaj qhov hluav taws xob tso tawm. Yog tias lub fuse zoo li qub thiab tsis muaj qhov hluav taws xob tso tawm, nws txhais tau hais tias qhov hloov kho DC stabilized fais fab mov tsis ua haujlwm lossis tau nkag mus rau hauv lub xeev tiv thaiv. Thawj kauj ruam yog txhawm rau txheeb xyuas tus nqi pib qhov hluav taws xob ntawm tus pin pib ntawm lub zog tswj nti. Yog tias tsis muaj qhov pib hluav taws xob lossis qhov pib voltage tsawg dhau, xyuas tus pin pib thiab cov khoom sab nraud ntawm qhov pib resistor kom to. Yog tias lub hwj chim tswj nti yog qhov qub, qhov kev soj ntsuam saum toj no yuav pab koj sai sai nrhiav qhov txhaum. Yog tias qhov pib qhov hluav taws xob tau siv, nws yuav ntsuas seb puas muaj qhov hloov pauv siab lossis qis qis ntawm qhov tso tawm ntawm cov nti tswj thaum nws qhib. Yog tias tsis muaj qhov dhia, nws txhais tau hais tias cov nti tswj tau puas lawm, cov khoom ntawm peripheral oscillator Circuit Court puas lawm, los yog kev tiv thaiv Circuit Court yog faulty. Los ntawm kev hloov cov tswj nti, xyuas cov khoom siv peripheral. Yog hloov, feem ntau cov raj hloov tau tawg lossis puas.
Plaub, kev tuav pov hwm raug hlawv lossis tawg
Feem ntau tab tom nrhiav rectifier txuas hniav, diodes, arc chute thiab loj 300 volt lim capacitors. Lub fuse tej zaum yuav raug hlawv los yog dub, los yog nws yuav yog vim muaj teeb meem nrog lub anti{1}} jamming circuit. Tshwj xeeb yuav tsum tau them rau qhov tseeb hais tias qhov tsis ua hauj lwm ntawm lub arc extinguishing chamber yuav tshuab lub fuse, yog li hlawv lub adjustable DC hwj chim tswj nti thiab lub tam sim no nrhiav kom tau resistor. Txawm tias muaj kev pov hwm, thermistors tuaj yeem hlawv tawm yooj yim.
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