Qhov ntsuas ntsuas hluav taws xob yog dab tsi?

A Kev ntsuam xyuas hluav taws xob hloov hluav taws xob(kuj tseem yog hu ua aKev Ntsuas Cov Khoom Tsis Txaus SiablossisTAN Delta Test) yog aKev kuaj mob, tsis muaj kev ntsuas hluav taws xob tiv thaiv hluav taws xobua ntawm transformers rauNtsuam xyuas cov xwm txheej ntawm cov rwb thaiv tsev system(Ob qho tib si kua - roj, thiab khoom - ntawv, nias, bushings, bushings) los ntawm ntsuas nwsdielectric poob.

Ntawm no yog kev tawg ntawm nws yog dab tsi, nws ua haujlwm li cas, thiab vim li cas nws tseem ceeb:

Tub Ntxhais Kawm: Kev Ntsuas Dielectric Kev Npaj

Rwb thaiv tsev tsis zoo tag nrho . Thaum raug rau cov rwb thaiv tsev (lossis lwm yam me me ntawm cov rwb thaiv tsev.

Qhov "xau" tam sim no yog Resive thiab dissipates lub zog li cua sov . qhov no yogKev tivthaiv.

Qhov "Charging" Tam sim no yog Capacitive thiab tsis dissipate lub zog (nws tau rov qab mus rau Circuit Court) .

TusLub zog tsim (pf)yog tus piv ntawm covLub Hwj Chim Poob (dissipated li tshav kub)raupom meej lub zogntws los ntawm cov rwb thaiv tsev hauv qab sim . nws yeej tseem ceeb ib qho kev ntsuas ntawm qhov nws ua haujlwm .

Dissipation factor (DF lossis ziab Δ)yog kev ua lej sib npaug (rau cov ces kaum me me) thiab sawv cev ntawm qhov sib piv ntawm cov tsis kam (poob) tam sim no rau lub peev xwm (them)}}}

Yuav ua li cas cov kev xeem ua:

Ib qho kev xeem tshwj xeeb teeb tsa (zoo li tus doble, megger, lossis zoo sib xws) siv rau 10 kv) (feem ntau txog 10 kv) rau cov rwb thaiv tsev .

Qhov kev ntsuas teeb tsa ntsuas tustheem kaum (Δ)nruab nrab ntawm cov ntawv thov voltage thiab lub txiaj ntsig tam sim no. lub ntsej muag zoo kawg nkaus muaj theem siab me me dua 90 {5 5}}

Qhov kev xeem teeb suav thiab qhia txog qhovLub hwj chim muaj hwj chim (cos θ)lossisDissipation factor (tan δ).} ob qho txiaj ntsig yog qhov me me (feem ntau qhia raws li feem pua ​​-% pf lossis% df).

Cov lus ceeb toom tseem ceeb:

Lub zog muaj peev xwm (%)=(watts poob / (volts x tam sim no)) x 100%

FORSIPATION Factor (Tan δ)=Tsis Tau / Muaj Peev Xwm Tam Sim No

Cov Kev Ntsuam Xyuas Kev Tshawb Fawb:

Winding-to-winding:Kev sim rwb thaiv tsev ntawm HV thiab LV windings (thiab tub ntxhais) .

Winding-rau-hauv av:Kev sim rwb thaiv tsev ntawm ib winding (hv lossis lv) thiab lub tank / av .

Bushing xeem:Kev Ntsuam Xyuas Bushings (C 1 - Chaw Ciaj Chaw Kuaj Xyuas Kuaj KE / Av; C} .

Dab tsi tshwm sim qhia koj?

Tsawg lub zog hluav taws xob muaj tseeb / dissipation qhov tseeb:Qhia tauzoo, "qhuav," rwb thaiv tsev huvnrog kev poob qis kawg diiectric poob . qhov no yog qhov xav tau {}}

Muaj Zog Muaj Zog / Dissipation Qhov:Qhia taunce dielectric poob, qhia cov teeb meem tseem ceeb hauv cov rwb thaiv tsev, xws li:

Tshuaj Nyab Rog:Dej yog qhov ua rau muaj kev nce ntxiv .

Kev laus / Denadation:Kev rhuav tshem ntawm daim ntawv cellulose lossis cov roj molecules tsim cov khoom lag luam los ntawm cov khoom lag luam .

Kev paug:Soot, av, lossis cov khoom siv hauv cov roj .

Roj degradation:Oxidation, sludge tsim, nce acidity .

Kev puas tsuaj ntawm lub cev:Punctures, carbonization pa roj carbonations, xoob windings ua rau voids (ib nrab tso) .

Cov teeb meem bushing:Degraded sab hauv daim ntawv lossis roj .

Vim li cas nws tseem ceeb? (Cov txiaj ntsig)

Thaum Ntxov Teeb Meem:Kuaj cov rwb thaiv tsev nchav ntev ua ntej kev puas tsuaj tshwm sim, tso cai rau kev npaj kho kom raug .

Kev Txij Nkawm:Ib qho cuab yeej tseem ceeb ntawm cov kev pab cuam tu mob .}} trending cov txiaj ntsig dhau lub sijhawm yog qhov tseem ceeb .

Ntsuam xyuas ya raws & paug:Kev nkag siab heev rau ya raws thiab coj cov khoom tsis huv .

Soj ntsuam cov roj roj:Muab kev pom mus rau hauv cov roj zoo .

Kev kuaj mob rau kev noj qab haus huv:Bushings yog cov ntsiab lus tsis tseem ceeb; kuaj xyuas lawv ib tus zuj zus yog tseem ceeb heev .

Lub hauv paus rau kev sib piv:Tsim kom muaj "cov ntiv tes" thaum transformer yog tshiab lossis tom qab kev saib xyuas rau kev sib piv yav tom ntej .

Tsis yog-ua kev puas tsuaj & yooj yim yooj yim:Ua thaum lub sij hawm ib txwm tawm khoom tsis ua kom lub transformer .

Txhim kho kev cia siab & kev nyab xeeb:Pab tiv thaiv tiv thaiv kev tawm tsam, hluav taws, thiab kev nyab xeeb thiab kev nyab xeeb .

Extends Transformer Lub Neej:Tso cai rau cov teeb meem hais ua ntej lawv ua dhau los ua kev loj hlob heev.

Txhais:

Tus nqi heev:Piv ntsuas PF / DF rau cov chaw tsim tshuaj paus lossis cov qauv kev lag luam (zoo li IEEE C57 {. 152 lossis iec 60422).

Tiav:Qhov no yog qhov tseem ceeb tshaj plaws tshaj plaws. sib piv cov txiaj ntsig tam sim no mus rau cov txiaj ntsig yav dhau los (tshwj xeeb yog cov hauv paus) los ntawm covTib Test Teebhauv qabZoo sib xws(ntsuas kub, cov av noo, cov kev sib txuas) qhia cov hloov pauv tsis zoo etherating deterioration {}} Qhov tseem ceeb tshaj plaws yog ib tug chij liab.

Kub kho:Cov txiaj ntsig tau yog qhov kub siab-siab-{1} Kev ntsuas feem ntau yog kho rau qhov ntsuas kub (E}}}}

Hauv cov ntsiab lus:

Ib qho kev ntsuas hluav taws xob hloov hluav taws xob yog qhov ua tau zoo ntawm kev ua kom tsis txhob muaj kev ua tsis tau zoo lossis kev puas tsuaj los ntawm kev ua tsis tiav thiab kev puas tsuaj los ntawm kev ntsuas kev noj qab haus huv thiab kev ntseeg tau ntawm lub zog hloov hluav taws xob .