BDV kuaj yog dab tsi?

TusBdv Xeem, lossisTIM MUAG VALPTAGE TEST, yog tus txheej txheem tseem ceeb tshaj plaws uas siv tau los ntsuas qhovDielectric lub zog ntawm insulating roj, tshwj xeebtransformer roj (roj ntxhia).} Tam sim no nyob ntawm no yog qhov kev tawg ntawm qhov nws yog, vim li cas nws yog qhov tseem ceeb, thiab nws ua haujlwm li cas:

Nws ntsuas dab tsi:

TusQhov Ntau Tshaj Plaws Hluav Taws Xobtias cov roj tuaj yeem tiv taustsis muaj tawg(Coj hluav taws xob) nyob rau hauv cov kev ntsuas ntsuas tshwj xeeb .

Essentially, it measures the oil's ability to act as an electrical insulator and prevent arcing or short circuits within electrical equipment like transformers, circuit breakers, and switchgear.

Vim li cas nws tseem ceeb (lub hom phiaj):

Tswjhwm Zoo:Ua kom sawv daws cov roj tshiab ua tau raws li cov lus qhia tshwj xeeb ua ntej muab tso rau hauv kev pabcuam .

Kev Tswj Xyuas:Taug qab kev noj qab haus huv thiab kev cuam tshuam ntawm cov rojCov Kev Pab Cuamdhau lub sijhawm .

Kev Txij Nkawm:Tus nqi bdv tsawg yog aQhov taw qhia yuamtias cov roj muaj paug los yog muaj qhov tsis zoo, muaj peev xwm tso cov khoom siv roj ua tsis huv {}}}}}} Ua ntej tsis ua hauj lwm muaj tshwm sim.

Kev Nyab Xeeb:Xyuas kom cov roj tswj hwm nws cov khoom insulating kom tiv thaiv hluav taws xob ua txhaum, hluav taws kub, thiab tawg .

Yuav ua li cas nws ua haujlwm (cov txheej txheem yooj yim - ib tus qauv zoo li ASTM D1816 lossis IEC 60156):

Qauv:Cov neeg sawv cev cov tshuaj tiv thaiv kab mob yog coj los ntawm cov khoom siv hauv qab huv si, cov kab mob qhuav .

Xeem Cell:Cov roj tau muab tso rau hauv cov qauv ntsuas ntawm tes muaj ob lub kheej lossis VDE (spherical nrog kev sib txawv (ib txwm muaj 1 hli lossis 1 . 5 hli).

Daim Ntawv Thov Voltage:Kev nce ntxiv acfolage (feem ntau yog 50/60 hz) yog thov thoob plaws cov electrodes ntawm tus tswj hwm (E {}}}} {.

TUAG:Qhov voltage yog nce kom txog thaum apiam tastshwm sim - lub txim taws qhov sib txawv ntawm cov electrodes, ua rau muaj kev tawm tam sim no .

Teev cia:Qhov hluav taws xob theem ntawm qhov kev rhuav tshem no tshwm sim tau sau tseg raws li tusRhuav tshem voltage (BDV)Rau qhov kev sim ntawd khiav .

Qhov nruab nrab:Qhov kev xeem yog feem ntau rov ua dua5-6 lub sij hawmnyob rautib yam piv txwv(nrog cov luv luv nplawm los yog so nruab nrab ntawm cov khiav) . qhov nruab nrab ntawm cov kev puas tsuaj no yog qhia raws li tusBDV tus nqirau cov qauv (hauv kv) .

Dab tsi cuam tshuam BDV? (Yam txo qis BDV):

Dej / Yws:Qhov feem ntau thiab cov ntsiab lus tseem ceeb . Txawm hais tias me me muaj zog txo BDV .

Particulate party:Plua plav, fibers, hlau hais, cov pa roj carbon hais (los ntawm arcing) .

Yaj cov roj av:Tej roj av tuaj yeem cuam tshuam cov khoom insulating .

Acidity / Oxidation Khoom:Cov roj degraded ua cov acids thiab sludge .

Kub:(Txawm hais tias kev xeem tau ua nyob rau ntawm tus qauv TEMP ~ 27℃/ 80 Degree F) .

Cov kab hluav taws xob & cov duab:Cov qauv ua kom pom tseeb qhov ua tau .

Txhais lus tau:

High BDV (e.g., >50-60 kv):Feem ntau qhia tau huv, cov roj qhuav hauv cov kev mob zoo .

Nruab Nrab BDV (e {{{0} g .},30-50 kv):Tej zaum yuav qhia cov kev paug lossis kev laus; kev tiv thaiv kev soj ntsuam lossis kev tshawb nrhiav .

Tsawg BDV (e {. g .,<20-30 kV):Muaj zog qhia tau cov kev sib kis tseem ceeb (tshwj xeeb yog dej) lossis advanced decadation .Kev txiav txim (pom kev / hloov pauv) feem ntau yuav tsum tau tam sim ntawd .Qhia txog qhov tsawg kawg nkaus uas muaj nuj nqis rau cov khoom siv, hluav taws xob kawm, thiab cov khoom siv / kev lag luam {{}

Tus Qauv Tseem Ceeb:

ASTM D1816:Txoj kev ntsuas ditrishectric puas kub hluav taws xob ntawm insulating roj ntawm cov roj av siv vde electrodes .

IEC 60156:Insulating kua - kev txiav txim siab ntawm qhov kev puas yog voltage ntawm lub zog zaus - kev sim xyaum.

IEEE C57.106:Phau Ntawv Qhia Kev Txais thiab Kev Txij Nkawm ntawm Insulating Roj hauv Cov Khoom Siv .