tus qauv ntawm Ib Feem Kev Ntsuas Kev Ntsuas
Dec 11, 2024Tso lus
Kev ntsuas qhov tso tawm ib nrab yog lwm txoj hauv kev tsim nyog kom paub meej tias lub tshuab hluav taws xob rwb thaiv tsev, ua kom paub tseeb tias tsis muaj qhov phom sij PD. Qhov laj thawj ntawm kev ntsuas PD yog kev ceeb toom thiab thaj chaw thaj chaw uas ib feem ntawm qhov kev tso tawm yuav tshwm sim, feem ntau cov kab noj hniav lossis ua cov khoom hauv cov khoom siv insulating. Cov cheeb tsam no tsis pom muaj kev ntxhov siab ntau dua dielectric, uas tuaj yeem ua rau muaj kev puas tsuaj rau cov hluav taws xob rwb thaiv tsev (xws li hluav taws xob tawg) nyob rau lub sijhawm ntev. Yog li feem ntau PD kev ntsuas tau ua tiav nrog kev kuaj dielectric (Induced voltage test).
IEC 60076-3
Annex A "Kev qhia daim ntawv thov rau kev ntsuas ib feem ntawm lub sijhawm AC tiv thaiv qhov ntsuas hluav taws xob ntawm cov hloov pauv raws li 12.2, 12.3 thiab 12.4
IEC: 60270 (ib.)
"Kev ntsuas qhov tso tawm ib nrab
IEE: C57.12.90
Nqe Lus 10.8/10.9: "Kev ntsuas hluav taws xob raug cuam tshuam
Vim tias qhov ntsuas qhov paug tawm ib nrab thiab qhov kev ntsuas hluav taws xob tau ua tiav ib txhij, qhov ntsuas ntsuas sib txuas ntawm pawg vector customized tau sib sau ua ke hauv ntu txuas ntxiv ("Kev ntsuas hluav taws xob hluav taws xob", saib 10.5 Cov Ntawv Ntxiv: Ntsuas kev teeb tsa ntawm pawg vector customized).
Ib nrab tso tawm yog ib feem ntawm qhov hluav taws xob tawg nyob rau hauv ib tug series ntawm insulating ntsiab ntawm ob electrodes (ntawm qhov sib txawv muaj peev xwm). Nws tuaj yeem txhais tau tias yog tus nqi hluav taws xob los ntawm ib txoj haujlwm mus rau lwm qhov. Rau kev hloov ceev heev ntawm tus kheej kev sib txuas ntawm ob kab terminals tuaj yeem suav tau tias yog ib tus lej ntawm cov kab txuas txuas nrog cov capacitors, uas yog qhov muaj peev xwm rau kev tso tawm. Kev ntxhov siab ntau dhau ntawm cov "tsis muaj zog" no tuaj yeem tshwm sim los ntawm kev tsim- lossis insulating cov khoom tsis zoo lossis kev sib txawv ntawm cov txheej txheem tsim khoom. Kev puas tsuaj rau cov rwb thaiv tsev los ntawm kev sim dhau los kuj tseem ua tau.
