Transformer roj yog qhov nruab nrab tseem ceeb rau kev siv tau cov cuab yeej kev nyab xeeb, kev ua haujlwm tseem ceeb hauv rwb thaiv tsev, txias, thiab arc supression. Nws cov tshuaj ruaj ntseg ncaj qha cuam tshuam hloov lub neej. Roj tsis zoo yuav ua rau txo cov rwb thaiv tsev inswbion lub zog, ib feem cuam tshuam, lossis kev puas tsuaj loj. Kev tshawb nrhiav kev tshawb fawb thiab kev tu ua haujlwm yog qhov tseem ceeb kom tiv thaiv rwb thaiv rwb thaiv rwb thaiv tsev ua tsis tiav thiab ua kom muaj kev ntseeg lub zog hluav taws xob.
Kev siv tshuab ntawm roj ncu thiab nrhiav kom muaj kev pom
Transformer roj degrades nyob rau lub sijhawm vim raug hluav taws xob teb, cua sov, oxygen, thiab noo noo. Cov txheej txheem no suav nrog oxidation, tawg, thiab paug, cim los ntawm cov ntsuas tseem ceeb hauv qab no:
Kev poob qis hauv dielectric kev ua tau zoo: oxidation los ntawm kev ua yeeb yam thiab cov dej noo kia cov kab ke, txo qhov tawg.
Nce acidity: organic acids corrod detulating ntawv thiab ua kom nrawm oxidation cov tshuaj tiv thaiv.
Gas tiam: Hauv zos overheating los yog rho tawm tsim cov khoom muaj txiaj ntsig (piv txwv li, h₂, c₂h₂).
Particateculation paug: hlau hais los yog fibers distort hluav taws xob teb, nrawm rwb thaiv tsev laus.
Cov Kev Ntsuas Cov Ntsiab Lus thiab Cov Qauv Txheej Txheem
Cov Khoom Siv Vaj Tsev
Color and Clarity: Fresh oil is pale yellow and transparent. Dark brown or cloudy oil indicates oxidation (>0.1% carbides) or particulate contamination (>5 μm).
Interfacial nro: cov roj tshiab tshaj 40 mn / m; Qhov tseem ceeb<25 mN/m signal sludge formation risk (ASTM D971).
Tshuaj Parieter Ntsuas
Kev rhuav tshem voltage: ntsuas hauv lub khob roj txheem nrog lub tshuab 2.5 hli. Qhov tseem ceeb<30 kV (IEC 60156) require immediate action.
Acid Number: Determined via potentiometric titration. Acid values >{{0 {0}}. 1 mg Koh / g Txuag tau lim khoom lossis hloov (GB / T 264).
Moisture Content: Detected by coulometric methods. Moisture >20 PPM (Cov Tshuab Roj-Roj) Accelerates Cellulose Cellulose (ASTM D1533).
Deatolved Roj Kev Tshawb Xyuas (DGA)
Gas Chromatography: CHI, C₂H₂, C₂H₂, THIAB LWM YAM NROG RAU PEB-RATIO LIAB HOM:
H₂ >150 PPM qhia txog ib nrab tawm.
C₂H₂ >1 ppm yuav tsum muaj ARC tso kev tshawb xyuas.
Cov tswv yim kev txij nkawm thiab cov txheej txheem ua kom zoo
Tej Sijhawm Saib Xyuas
Cov kev hloov pauv niaj hnub: Kev kuaj cov roj teeb txhua 6 lub hlis; Txo mus rau 3 lub hlis rau cov tsev laus hnyav lossis cov laus.
Install online monitoring systems to track oil temperature (>85 degree tswb), noo noo (± 3 ppm qhov tseeb), thiab roj ntau, ua ke rau hauv cov platform.
Roj Kev Tsim Txheej Txheem Roj
Lub tshuab nqus dej: tshem tawm cov dej noo (<15 ppm target) and gases at 60°C and -0.09 MPa.
Adsorption Treatment: Uses activated alumina or silica gel to remove acids (acid reduction rate >80%).
Antioxidant Ntxiv: Ntxiv 0. 3% T501 kom ncua kev pab roj lub neej.
Kev tswj hwm ib puag ncig
Saib xyuas ua pa Silica gel (xiav → → WINK qhia tau hais tias yog saturation); Txhim kho kev sib khi cov tshev thaum caij ntuj los nag.
Txwv txiav cov roj sab saum toj kom tsawg dua lossis sib npaug rau 95 degree (GB / T 6451) los tiv thaiv kev ua haujlwm sov thiab sludge kev ua haujlwm.