Transformer bushing kuaj khoom

Transformer bushing soj ntsuam cov khoom

Cov khoom siv hluav taws xob transforming yog cov khoom siv sab hauv mus rau kev nyab xeeb thiab kev txhawb nqa ntawm cov khoom lag luam uas feem ntau poob rau hauv qab no:

Kuv {. niaj hnub soj ntsuam (feem ntau ua rau thaum lub caij nyoog lossis chaw saib xyuas lead)

Kev Ntsuam Xyuas Pom:

Kuaj cov plooj (porcelain / Tej hub (lossis cov tshuaj tiv thaiv insulator) nto, puas, ci ntsa iab, los yog blowber scals .

Txheeb cov hlau flanges, txuas cov khoom kho vajtse, thiab muab qhab nia sib tw rau xeb, deformation, lossis kev puas tsuaj .

Txheeb xyuas cov ntsiab lus (e {{{0} g .}

Txheeb xyuas lub davhlau nyob sab saum toj Connector ("General's Cap") yog nruj thiab qhia tsis muaj cov cim ntawm overheating lossis discoloration .

Txheeb xyuas cov roj theem gauge (roj-impregnated bushings) yog kev nyeem tau thiab qib roj yog nyob rau hauv ib txwm muaj (txiav txim siab huab cua sov) .

Kuaj xyuas gauges (roj-puv lossis roj bushings) rau cov kev nyeem ib txwm .

Txheeb xyuas lub davhlau ya nyob twg ("Coj mus rhaub" lossis "Khawm mus kuaj") yog lawm thiab ntseeg tau grounded .

Roj theem / siab xyuas:Rau cov roj-impregnated lossis roj-puv bushings, saib xyuas roj txhua hnub thiab cov roj roj lossis roj av tau ua kom ntseeg tau tias nws nyob hauv lub khw li cas.

Infrared thermography (Live-kab nrhiav):Ib qho tsis tu ncua ua rau lub davhlau ya nyob twg (chaw nyob sab saum toj, thiab ntsuas qhov tsis zoo, thiab lwm yam} .

 

Ii {. Kev Tiv Thaiv Tiv Thaiv (feem ntau ua thaum sawv cev ntawm kev txij nkawm)

Cov no yog cov kev xeem tseem ceeb los ntsuas cov tshuaj rwb thaiv tsev ntawm bushing:

Rwb thaiv tsev tsis kam ntsuas:

Lub ntsiab rwb thaiv tsev:Ntsuas cov tswv cuab insulation tsis kam nruab nrab ntawm cov high-voltage neeg xyuas thiab ntsuas davhlau ya nyob twg (lossis av). {1} .

Kev Ntsuas Lub Chaw Tiv Thaiv Kev Tiv Thaiv:Ntsuas cov tswv yim tsis kam ntawm lub davhlau ya nyob twg thiab yog nws tus kheej tsis muaj qhov tseeb ntawm kev ua haujlwm ntawm ditefort initteation}

Dielectric dissoripation Factor (Tan Delta) thiab kev ntsuas ntsuas hluav taws xob:

Core xeem:Ntsuas qhov dielectric dissipipipipation Factor (TAN δ) thiab capacitance (c) Qhov no yog ib qho tseem ceeb tshaj plaws thiab tseem ceeb, lossis tsis xws luag.

Kev Ntsuas Txuj Ci:Feem ntau ua kev siv tus choj siab (e . Lub teb chaws) lossis tsis siv neeg Tasrage) {.

Cov Kev Saib Xyuas Tseem Ceeb:Sib piv cov txiaj ntsig rau kev tsim txiaj, cov ntaub ntawv keeb kwm, thiab cov bushing zoo sib xws . ob qhoTsis muaj nqintawm tan Δ thiab nwsXyoo tas xyoo(Tus nqi nce ntxiv) yog qhov tseem ceeb . Kev Ntsuas Hluav Taws Xob (E {{} {{{{{{{{{{.

AC withstand voltage kuaj (lub zog hluav taws xob):

Qhia txog lub peev xwm ntawm lub ntsiab lus tseem ceeb kom tau txais lub zog hluav taws xob tsis pom kev, ntsuas nws cov rwb thaiv tsev rwb thaiv tsev {}}

Qhov no yog ib qho kev ntsuam xyuas uas muaj kev puas tsuaj, feem ntau ua thaum lub sijhawm kev lees paub, tom qab kev tsis txaus siab raws li kev tswj hwm tau raws li kev tswj hwm hluav taws xob}.

Deatolved Roj Kev Tshawb Xyuas (DGA) ntawm Roj:

RauRoj-impregnatedBushings . Nqa cov qauv ntawm cov roj hauv Insulating Insulating (DGA) .

Kuaj pom cov pa roj xws li hydrogen (h₂), methane (c₂h₄), tshuaj tiv thaiv (colbon monoxide (colbon dioxide (co₂).

Siv cov yam ntxwv roj ntau thiab kev sib piv los kuaj xyuas cov kev ua txhaum hauv tsev tsis muaj kev tawm, muaj lub peev xwm}}}

Roj Kev Ntsuas Ua Haujlwm:

RauRoj-impregnatedBushings . Ntsuas roj tawg vim yog hluav taws xob voltage, dikas cov ntsiab lus, acidity, etc.

Ntsuas qhov hluav taws xob ua tau thiab kev laus lub xeev ntawm insulating roj insulating ncaj qha cuam tshuam ncaj qha rau bushing rwb thaiv tsev rwb thaiv tsev kev ua haujlwm.

Cov ntsiab lus noo noo:

Roj-impregnated:Ntsuas cov kab noo noo noo cov ntsiab lus hauv cov roj (PPM) .

SF6 roj:Ntsuas cov ntsiab lus noo noo hauv SF6 roj av (lwg) .

Ya raws yog ib tug yeeb ncuab ntawm rwb thaiv tsev; ntau dhau los ntawm qib ntau txo qis dielectric lub zog thiab nrawm .

SF6 roj xau (rau SF6 bushings):Siv lub ntsuas dej xau los tshawb xyuas bushing foob pob ntseg ncaj ncees, ua kom tsis muaj SF6 roj to .

 

Iii {. TSHWJ XEEB TSHUAJ TUAJ THIAB KEV TSHUAJ TSHWJ XEEB (ua raws li xav tau)

Partial paug (PD) ntsuas:

Offline ntsuas:Ntsuas PD Magritude (pc) thiab cov qauv thaum kuaj lossis txuas voltage thov siv lub pd ntes .

Kev Tswj Xyuas Online:Siv cov hloov pauv siab tam sim no (HFCT) lossis cov chaw muaj hluav taws xob ntau dua (UHF) lub teeb meem los saib xyuas cov cim pd thaum ua haujlwm.

PD yog qhov taw qhia tseem ceeb ntawm rwb thaiv tsev rwb thaiv tsev detheration, zoo ntes sab hauv voids, paug, floating muaj peev xwm, thiab lwm yam .

X-ray lossis computed Tomography (CT) Luam Ntawv:Siv thaum loj sab hauv tshuab deformation, kev hloov chaw, lossis nyuaj rau kev kuaj mob los ntawm cov duab sib xyaw, muab cov duab sab hauv {}}

Kev sim ultrasonic (UT):Feem ntau siv los xyuas cov kev tawg kom tawg lossis tsis xws luag nyob rau hauv cov vaj tse phaj (yog tias tus qauv tso cai) .

Kev co thiab nrov saib xyuas:Saib xyuas bushings thaum ua haujlwm rau kev sib tw txawv txav lossis suab nrov, uas yuav qhia sab hauv kev xoob lossis cov teeb meem kev siv tshuab {{}

Ntsuas Terminal Tam sim no / Online Saib Xyuas:Rau bushings nruab nrog online soj ntsuam cov tshuab, saib xyuas qhov ntsuas ntawm qhov chaw nres tsheb (muaj feem xyuam rau dienrit poob) lossis ob lub sijhawm {{1}.