Fusing Resistor Test los ntawm Multimeter Measurement Method
Kev xaiv ntawm Fusing Resistor
Kev xaiv yuav tsum coj mus rau hauv tus account nws cov kev ua tau zoo dual, raws li cov kev cai tshwj xeeb ntawm Circuit Court los xaiv nws qhov kev tiv thaiv thiab lub zog thiab lwm yam tsis. Ob leeg los xyuas kom meej tias nws tuaj yeem ua tau sai sai hauv cov khoom siv ntau dhau, tab sis kuj kom ntseeg tau tias nws tuaj yeem ua haujlwm nyob rau hauv ib txwm muaj rau lub sijhawm ntev thiab ruaj khov. Kev tiv thaiv tus nqi ntau dhau los yog lub zog ntau dhau, tsis tuaj yeem ua lub luag haujlwm tiv thaiv.
Fusing resistor nrhiav kom tau nrog ib txoj kev ntsuas multimeter
Hauv Circuit Court, thaum lub fuse qhib, koj tuaj yeem txiav txim siab raws li kev paub dhau los: yog tias koj pom qhov saum npoo ntawm fusing resistor dub lossis hlawv, nws tuaj yeem txiav txim siab tias nws yog overloaded, tam sim no los ntawm nws yog ntau tshaj qhov ntsuas. nqi ntau zaus; Yog hais tias qhov chaw ntawm qhov qhib Circuit Court tsis muaj ib qho chaw, nws qhia tau hais tias tam sim no ntws tsuas yog sib npaug los yog me ntsis ntau dua li tus nqi ntsuas ntawm lub fuse. Rau qhov saum npoo ntawm fusing resistor yam tsis muaj ib qho kev txiav txim zoo los yog phem, nrog kev pab los ntawm multimeter r × 1 block los ntsuas, txhawm rau kom ntseeg tau qhov tseeb ntawm kev ntsuas, lub fusing resistor yuav tsum tau welded los ntawm Circuit Court ntawm ib qho. kawg. Yog hais tias qhov ntsuas tsis kam mus rau infinity, lub fusing resistor tau ua tsis tau tejyam qhib-circuit, yog hais tias qhov ntsuas tsis kam mus rau lub nominal tus nqi ntawm qhov sib txawv nyob deb heev, qhia tau hais tias tus nqi kuj, tab sis kuj yuav tsum tsis txhob siv dua. Pom nyob rau hauv kev saib xyuas, muaj ob peb fusing resistors nyob rau hauv lub Circuit Court yog tawg luv luv-circuit tshwm sim, nrhiav kom tau yuav tsum tau muab sau tseg.
Classification ntawm Fusing Resistor
Fusing resistors tuaj yeem muab faib ua ob hom kev rov ua kom rov qab tau fusing resistors thiab ib zaug fusing resistors.
(A) Recoverable Fusing Resistors
Recoverable fusing resistor yog ib qho zoo tib yam resistor (los yog tsis kam xaim) nrog lub melting point solder thiab lub caij nplooj ntoos hlav-loaded hlau tshaj (los yog elastic hlau ntawv) welded ua ke nyob rau hauv series, ces kaw nyob rau hauv ib tug cylindrical los yog square plhaub. Cov vaj tse muaj nyob rau hauv cov hlau thiab cov yas ntshiab.
Nyob rau hauv qhov ntsuas tam sim no, qhov rov ua tau rov qab fusing resistor ua raws li tus neeg tiv thaiv ruaj khov. Thaum ib qho overcurrent tshwm sim nyob rau hauv lub voj voog, cov pob qij txha ntawm cov retorable fusible resistor thawj yaj, disconnecting lub caij nplooj ntoos hlav-loaded hlau (los yog saj zawg zog hlau ntawv) los ntawm lub resistor. Tom qab tshem tawm qhov kev ua txhaum ntawm Circuit Court, raws li qhov yuav tsum tau muaj ntawm cov resistor thiab cov hlau (los yog cov ntawv hlau) welded, koj tuaj yeem rov siv dua qub.
Feem ntau siv cov fusing resistors rov qab yog TH series R × 90 series, thiab lwm yam.
(B) Ib zaug Fusing Resistor
Disposable fusing resistor kuj yog hu ua non-recoverable fusing resistor, uas plays lub luag hauj lwm ntawm ib tug ruaj resistor nyob rau hauv ib txwm ua hauj lwm ntawm lub Circuit Court, thaum nws khiav hauj lwm tam sim no tshaj qhov ntsuas tam sim no, lub fusing resistor yuav fused zoo li lub fuse los tiv thaiv Circuit Court. , cov pov tseg fusing resistor tsis tuaj yeem kho tom qab lub fusing resistor tsuas yog hloov nrog lub fusing resistor tshiab. Disposable fusing resistors tuaj yeem muab faib ua wirewound fusing resistors thiab zaj duab xis fusing resistors raws li cov khoom siv hauv lub cev resistor.
1. Wirewound Fusing Resistors Wirewound fusing resistors belongs rau lub hwj chim hom glaze coated resistors, nws cov nqi kuj yog me me, feem ntau yog siv rau hauv Circuit Court nrog ntau dua kev khiav hauj lwm tam sim no.
Nyob rau hauv cov txheej txheem ntau lawm, ib feem ntawm lub hwj chim hom glaze coated resistor nrog zoo hlau winding los yog liab qab ib feem (tsis coated nrog glaze tiv thaiv txheej), nyob rau hauv lub tiv thaiv Circuit Court overcurrent faults, lub resistor lub zoo hlau ib feem los yog liab qab ib feem (tsis coated nrog glaze ib feem. ) yuav hlawv tawm vim overheating los tiv thaiv Circuit Court.
2. Membrane Fusing Resistor Membrane Fusing Resistor yog tam sim no feem ntau siv fusing resistor, uas tau muab faib ua carbon film fusing resistor, hlau zaj duab xis fusing resistor thiab hlau oxide zaj duab xis fusing resistor thiab lwm yam fusing resistor.
