Qhov ntsuas Sweep Frequency Response Analysis (SFRA) yog dab tsi, thiab thaum twg nws yuav tsum tau ua?
SFRA yog cov txheej txheem kuaj mob uas ntsuas qhov hloov pauv muaj nuj nqi (impedance vs. zaus) ntawm lub tshuab hloov hluav taws xob windings hla ntau zaus (feem ntau 10 Hz txog 2 MHz). Nws pom cov neeg kho tshuab deformations uas tsis tuaj yeem pom los ntawm cov qauv kev sim xws li TTR lossis winding tsis kam.
Vim li cas nws tseem ceeb:
1. Tshawb xyuas winding deformation tshwm sim los ntawm -fault tam sim no (short circuits).
2. Txheeb xyuas cov axial lossis radial buckling, disc loosening, lossis kev hloov pauv ntawm tus neeg xyuas pib.
3. Txheeb xyuas qhov tseem ceeb ntawm kev ncaj ncees - cov hlau nplaum seem, cov teeb meem hauv av, lossis hloov laminations.
4. Txheeb xyuas qhov kev puas tsuaj ntawm kev thauj mus los - transformers uas tuaj txog ntawm - qhov chaw tom qab ntev - kev thauj mus los.
5. Kev sib piv hauv paus - ib "tus ntiv tes" ntawm kev noj qab haus huv transformer rau yav tom ntej kev tsom xam.
Los ntawm daim ntawv qhia hauv qab no, peb tuaj yeem nkag siab meej txog qhov tseem ceeb ntawm SFRA hauv cov xwm txheej sib txawv
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Scenario |
Pom zoo ua |
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Ntawm lub Hoobkas txais |
Cov ntaub ntawv siv ntiv tes |
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Tom qab dhau ntawm - txhaum (kev tshwm sim luv luv) |
Muab piv rau qhov siv |
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Tom qab ntawm - qhov chaw hloov chaw / thauj mus los |
Tshawb xyuas shipping puas |
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Ua ntej thiab tom qab kev kho loj |
Txheeb xyuas qhov tseeb ntawm winding |
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Periodically (txhua 4-6 xyoo) |
Kev soj ntsuam xyuas |
Txheem txog SFRA xeem:IEEE C57.149 (Cov Lus Qhia rau SFRA) thiab IEC 60076-18.