Nws yog qhov paub zoo tias cov khoom siv hluav taws xob feem ntau ntsib qhov kev xav tsis zoo ntawm cov khoom siv hluav taws xob thiab kev siv hluav taws xob, uas ua rau kev puas tsuaj ntawm cov khoom siv hluav taws xob.Qhov kev puas tsuaj yog tshwm sim los ntawm cov khoom siv semiconductor hauv cov khoom siv hluav taws xob (xws li diodes, transistors, SCR thiab integrated circuits) raug hlawv lossis tawg.
1, ib qho ntawm cov txheej txheem yog ua kom tag nrho lub tshuab, thiab cov txheej txheem hauv av, tag nrho lub tshuab thiab cov txheej txheem ntawm (public) thiab lub ntiaj teb yuav tsum tau sib cais, tag nrho lub tshuab thiab cov txheej txheem ntawm txhua lub subsystem yuav tsum muaj kev ywj pheej rau pej xeem, nruab nrab ntawm lub subsystems hloov cov ntaub ntawv los yog teeb liab, yuav tsum tau mus rau lub ntiaj teb raws li cov theem siv, av hlau (nto), nws yuav tsum yog ib tug loj tam sim no, xws li ob peb puas amperes.
2. Txoj kev tiv thaiv thib ob yog siv cov khoom siv hluav taws xob hloov hluav taws xob thiab cov khoom siv tiv thaiv hluav taws xob nyob rau hauv qhov tseem ceeb ntawm tag nrho lub tshuab thiab lub cev (xws li lub computer zaub, thiab lwm yam), kom cov hluav taws xob hloov hluav taws xob thiab hluav taws xob tuaj yeem hla mus rau hauv av subsystem thiab lub ntiaj teb los ntawm kev tiv thaiv cov cuab yeej, kom lub sijhawm hloov hluav taws xob thiab cov surge amplitude nkag mus rau tag nrho lub tshuab thiab lub kaw lus tuaj yeem txo qis heev.
3. Txoj kev tiv thaiv thib peb yog siv kev sib xyaw ua ke ntawm ntau qhov kev hloov pauv hluav taws xob thiab cov khoom siv tiv thaiv hluav taws xob los ua ib qho kev tiv thaiv ntau yam rau cov tshuab tseem ceeb thiab kim thiab cov tshuab.
Surge protector muab txoj kev tiv thaiv yooj yim, kev lag luam thiab txhim khu kev qha rau lub zog hluav taws xob tiv thaiv cov khoom siv hluav taws xob.Los ntawm txoj kev surge protector (MOV), lub zog surge tuaj yeem xa mus rau lub ntiaj teb sai sai thaum muaj hluav taws xob tawm tsam induction thiab kev khiav hauj lwm overvoltage, thiaj li tiv thaiv cov cuab yeej los ntawm kev puas tsuaj.
(4) txhawm rau ntxiv dag zog rau kev tiv thaiv cov khoom siv hluav taws xob, hauv cov khoom siv hluav taws xob thiab kev thauj khoom ntawm cov khoom siv hluav taws xob super cais tawm (tseem hu ua txoj kev cais tawm), txhawm rau txhawm rau cais cov kev cuam tshuam ntawm qhov siab tshaj plaws, tab sis kuj tuaj yeem ua rau theem nrab. equipotential kev twb kev txuas yooj yim mus nqa tawm.
Txoj kev rho tawm feem ntau yog siv cov kev sib cais transformer nrog shielding txheej.Vim ntau hom kev cuam tshuam yog ib hom kev cuam tshuam hauv av, nws yog kis tau los ntawm cov coupling capacitance ntawm transformer windings.Yog hais tias ib tug shielding txheej yog ntxig ntawm thawj thiab thib ob, thiab cov shielding txheej yog zoo grounded, lub interfering voltage yuav shunned los ntawm shielding txheej, yog li txo qhov cuam tshuam voltage ntawm cov zis.
Raws li txoj cai, lub transformer nrog shielding txheej yuav ua rau lub attenuation ntawm txog 60dB.Tab sis cov nyhuv cais yog zoo los yog phem, feem ntau nyob ntawm shielding txheej technology.Nws yog ib qhov zoo tshaj plaws xaiv 0.2 hli tuab tooj liab phaj, thawj sab, deputy sab. txhua qhov ntxiv ib txheej shielding.Feem ntau, cov thawj shielding yog txuas nrog lub thib ob shielding los ntawm ib tug capacitor, uas yog ces txuas nrog rau hauv av ntawm lub thib ob.Lub shielding txheej ntawm thawj ntug kuj yuav txuas nrog rau hauv av ntawm thawj ntug. , thiab cov shielding txheej ntawm cov ntug theem nrab tej zaum yuav txuas nrog rau hauv av ntawm ntug.Thiab qhov chaw hla ntawm cov hmoov txhuas hauv av yuav tsum loj dua.Qhov kev sib cais transformer nrog ib txheej shielding yog ib txoj kev zoo, tab sis qhov ntim yog loj dua.
Txoj kev no vim hais tias lub transformer muaj nuj nqi yog ib yam nkaus thiab, tus txheeb ze ntim, qhov hnyav, installation yog tsis yooj yim heev, nyob rau hauv nruab nrab thiab tsawg zaus ncov thiab surge tiv thaiv nyhuv yog tsis zoo, yog li ntawd lub lag luam yog txwv, manufacturers tsis ntau.Yog li nws tsis yog. feem ntau yog siv rau lub sijhawm tshwj xeeb.
(5) txoj kev nqus
Txoj kev nqus dej feem ntau yog siv cov khoom siv nthwv dej nqus kom nqus tau qhov cuam tshuam ntawm qhov siab ntawm qhov siab tshaj.Absorbing cov cuab yeej muaj cov yam ntxwv zoo ib yam, uas yog, lawv nthuav tawm siab impedance hauv qab qhov pib voltage, thiab thaum qhov pib hluav taws xob dhau, lub impedance poob qis, yog li lawv muaj qee yam inhibitory nyhuv ntawm lub ncov voltage.
Cov khoom siv absorbing no feem ntau muaj xws li varistor, roj paug raj, TVS tube, cov khoom paug tawm, thiab lwm yam.Different absorbing pab kiag li lawm kuj muaj lawv tus kheej cov kev txwv nyob rau hauv suppression ntawm lub ncov voltage. cov lus teb ceev ntawm cov roj amplifier raj yog qeeb.
Post lub sij hawm: Sep-26-2021