Local deformation txhais tau hais tias tag nrho qhov siab ntawm lub kauj tsis tau hloov, los yog qhov sib npaug ntawm txoj kab uas hla thiab thickness ntawm lub kauj tsis tau hloov nyob rau hauv ib tug loj cheeb tsam;Tsuas yog qhov loj me me ntawm cov coils hloov pauv, lossis qhov sib npaug ntawm cov coil ncuav mog qab zib tau hloov mus rau qhov me me.Tag nrho cov inductance yog qhov pib tsis hloov pauv, yog li cov spectrum nkhaus ntawm cov theem faulty thiab cov theem ib txwm yuav sib tshooj ntawm txhua qhov resonance ncov point hauv qhov tsawg zaus band.Nrog rau qhov loj ntawm qhov chaw deformation ib nrab, qhov sib txuas tom qab resonance peaks yuav raug tshem tawm.
HV Hipot GDBR-P Transformer Load tsis-load thiab muaj peev xwm tester
Hauv zos compression thiab rub-tawm deformation: Hom deformation no feem ntau suav hais tias yog los ntawm electromagnetic quab yuam.Vim yog lub zog repulsion generated los ntawm tam sim no nyob rau hauv tib txoj kev, thaum ob kawg ntawm lub kauj yog compressed, lub repulsion quab yuam yuav nyem tawm ib tug neeg pads, ua rau cov seem yog squeezed thiab cov seem yog rub tawm.Hom deformation no feem ntau tsis cuam tshuam rau cov hlau lead hauv qhov xwm txheej uas cov ntsia hlau siab ntawm ob qho kawg tsis tau txav mus los: hom deformation feem ntau tsuas yog hloov qhov kev ncua deb (axial) ntawm cov ncuav, thiab lub peev xwm (nruab nrab ntawm cov ncuav qab zib) cuam tshuam. nyob rau hauv parallel inductance nyob rau hauv sib npaug Circuit Court capacitance) hloov.Nrog cov coj tsis tau rub, qhov siab zaus ntawm cov spectrum yuav hloov me ntsis.Tag nrho cov kauj tsis yog compressed, tsuas yog ib feem ntawm qhov kev ncua deb ntawm lub ncuav yog rub tawm, thiab qee qhov kev ncua deb ntawm lub ncuav yog compressed.Nws tuaj yeem pom los ntawm cov spectrogram tias qee qhov ntawm cov resonant peaks txav mus rau qhov siab zaus kev taw qhia nrog qhov txo qis hauv cov nqi ncov;thaum qee qhov resonant peaks txav mus rau qhov kev taw qhia tsawg zaus thiab nrog rau qhov nce ntawm tus nqi ncov.Cov cheeb tsam deformation thiab qib ntawm deformation tuaj yeem kwv yees thiab txheeb xyuas los ntawm kev sib piv txoj haujlwm uas qhov resonance ncov yog pom tseeb hloov, (tus naj npawb ntawm cov peaks) thiab qhov hloov pauv ntawm qhov resonance ncov.Qhov feem ntau zaus ntawm spectrogram yuav hloov thaum lub zos compression thiab rub-tawm deformations cuam tshuam rau cov coj.Thaum lub degree ntawm compression hauv zos thiab rub-tawm deformation loj, qee qhov resonance peaks nyob rau hauv qhov tsawg zaus thiab nruab nrab zaus bands sib tshooj, ib tug neeg peaks ploj, thiab lub amplitude ntawm ib co resonance peaks nce.
Tig-rau-tig luv luv Circuit Court: Yog hais tias ib tug metallic inter-tig luv luv Circuit Court tshwm sim nyob rau hauv lub kauj, tag nrho inductance ntawm lub kauj yuav raug txo kom tsawg, thiab coil qhov kev cuam tshuam rau lub teeb liab yuav txo tau zoo heev.Ua raws li lub spectrogram, lub resonant ncov ntawm qhov tsawg zaus band yuav pom tseeb txav mus rau qhov siab zaus kev taw qhia, thiab tib lub sijhawm, vim qhov txo qis ntawm qhov cuam tshuam, qhov zaus teb nkhaus yuav txav mus rau qhov kev taw qhia ntawm kev txo qis hauv qhov kev cuam tshuam. tsawg zaus band, uas yog, qhov nkhaus yuav txav mus los ntawm ntau tshaj 2ddB;Tsis tas li ntawd, qhov sib txawv ntawm qhov resonance peaks thiab hav ntawm lub spectrum nkhaus yuav raug txo vim qhov txo qis ntawm Q tus nqi.Cov spectral curves ntawm nruab nrab thiab siab zaus bands coincide nrog cov ntawm ib txwm coil.
Cov kauj ruam tawg: Thaum lub kauj hlua tawg lawm, tag nrho inductance ntawm lub kauj yuav nce me ntsis.Raws li cov spectrogram, lub resonant ncov ntawm qhov tsawg-zaus band yuav txav me ntsis mus rau qhov tsawg-frequency kev taw qhia, thiab lub attenuation nyob rau hauv lub amplitude yuav nyob twj ywm tsis hloov;cov spectral curves ntawm nruab nrab-frequency thiab high-frequency bands coincide nrog lub spectrogram ntawm ib txwm coil.
Hlau txawv teb chaws lub cev: Nyob rau hauv ib txwm coil, yog hais tias muaj ib tug hlau txawv teb chaws lub cev ntawm lub ncuav, txawm hais tias nws muaj me ntsis cuam tshuam rau qhov tsawg zaus tag nrho inductance, lub capacitance ntawm lub ncuav yuav nce.Lub resonance ncov ntawm qhov tsawg zaus ib feem ntawm lub spectrum nkhaus yuav txav mus rau qhov tsawg zaus kev taw qhia, thiab lub amplitude ntawm nruab nrab thiab siab zaus ib feem ntawm qhov nkhaus yuav nce.
Lead hloov: Thaum cov hlau lead raug tshem tawm, nws tsis cuam tshuam rau inductance, yog li qhov tsawg zaus band ntawm spectrum nkhaus yuav tsum tau sib tshooj tag nrho, thiab tsuas yog qhov nkhaus ntawm 2ookHz ~ 5ookHz qhov hloov pauv, feem ntau yog hais txog attenuation amplitude.Thaum cov hlau lead txav mus rau ntawm lub plhaub, qhov siab zaus ntawm qhov spectrum nkhaus txav mus rau hauv cov kev taw qhia ntawm kev nce attenuation, thiab qhov nkhaus txav mus rau hauv qab;Thaum cov hlau lead txav mus los ze zog rau lub kauj, qhov siab zaus ntawm qhov spectrum nkhaus txav mus rau qhov kev taw qhia ntawm kev txo qis, thiab qhov nkhaus txav mus rau sab saud.
Axial buckle: Axial twist yog tias nyob rau hauv qhov kev txiav txim ntawm lub zog hluav taws xob, lub kauj raug thawb tawm mus rau ob qho kawg.Thaum nws raug nias los ntawm ob qho kawg, nws raug yuam kom deform los ntawm nruab nrab.Yog hais tias qhov sib txawv ntawm cov thawj transformer yog loj los yog lub braces raug yuam kom hloov, lub kauj yog twisted rau hauv ib tug S duab nyob rau hauv lub axial kev taw qhia;qhov deformation no tsuas yog hloov ib feem ntawm lub capacitance ntawm lub ncuav thiab ib feem ntawm lub capacitance rau hauv av vim tias ob qhov kawg tsis hloov.Lub inter-screen capacitance thiab lub capacitance rau hauv av yuav txo qis, yog li lub resonant ncov yuav txav mus rau lub siab zaus ntawm lub spectrum nkhaus, lub resonant ncov nyob ze ntawm qhov tsawg zaus yuav poob me ntsis, thiab lub resonant ncov zaus nyob ze ntawm lub intermediate zaus yuav nce. me ntsis, thiab qhov zaus ntawm 3ookHz ~ 5ookHz yuav nce me ntsis.Cov kab spectral yeej ua raws li qhov qub.
Amplitude (inch) deformation ntawm lub kauj: Nyob rau hauv qhov kev txiav txim ntawm electrodynamic quab yuam, lub puab kauj yog feem ntau cog lus rau sab hauv.Vim qhov kev txwv ntawm sab hauv, lub kauj yuav deformed nyob rau hauv lub amplitude kev taw qhia, thiab nws ntug yuav zigzag.Qhov no deformation yuav ua rau inductance me ntsis Txo, lub capacitance rau hauv av kuj hloov me ntsis, yog li lub resonance ncov nyob rau hauv tag nrho cov zaus ntau tsiv me ntsis mus rau lub siab zaus kev taw qhia.Lub amplitude deformation ntawm txheej txheej yog feem ntau nthuav tawm sab nraud, thiab tag nrho inductance ntawm deformation kauj yuav nce, tab sis qhov kev ncua deb ntawm lub puab thiab txheej coils yuav nce, thiab lub capacitance ntawm hlau ncuav mog qab zib rau hauv av yuav txo.Yog li ntawd, thawj resonance ncov thiab hav ntawm lub spectrum nkhaus yuav txav mus rau qhov tsawg zaus kev taw qhia, thiab cov nram qab no peaks thiab hav yuav tsiv me ntsis mus rau lub siab zaus kev taw qhia.
Post lub sij hawm: Oct-11-2022