Kev txiav txim siab seb lub tank hloov pauv puas yuav tsum muaj kev kho dua tshiab yuav tsum muaj kev ntsuas dav dav los txiav txim siab ntev - lub sijhawm tu lub sijhawm, qhov txawv txav ntawm qhov ntsuas qhov tseem ceeb, thiab cov teeb meem tam sim ntawd. Kev kho dua tshiab tsis yog tsuas yog ib ntus "qhov hloov pauv," tab sis kev kho kom sib sib zog nqus raws li cov khoom siv, feem ntau suav nrog kev ua haujlwm tseem ceeb xws li kev tshuaj xyuas tub ntxhais, kev hloov pauv, thiab kev kho roj.
Overhaul Trigger Cycle: Basic Reference, Tsis yog Tus Qauv Tsis Txaus
Cov lus pom zoo dav dav: Roj-immersed transformers yuav tsum tau kho lawv thawj zaug kev kho dua tshiab hauv 5 xyoos ntawm kev ua haujlwm, ua raws li kev kho dua tshiab txhua 10 xyoo.
Cov xwm txheej tshwj xeeb tuaj yeem hloov kho: Rau cov tso tsheb hlau luam tag nrho nrog cov npoo welded lossis cov chaw tsim khoom tshwj xeeb, thiab tom qab kev sim ua tiav thiab kev soj ntsuam kev ua haujlwm, lub voj voog kho dua tuaj yeem txuas ntxiv kom tsim nyog.
Txawm li cas los xij, yog tias muaj xwm txheej hauv qab no tshwm sim, ib qho kev hloov kho loj yuav tsum tau teem caij tam sim ntawd, tsis hais seb lub voj voog puas tas lawm.
Qhov Ntsuas Qhov Ntsuas Qhov Tseem Ceeb Tshaj Tawm Cov Qauv: Lub Ntsiab Tseem Ceeb rau Kev Txhim Kho Loj
Thaum cov ntaub ntawv kuaj xyuas ib ntus qhia pom tias muaj kev puas tsuaj loj, nws qhia tau tias muaj kev puas tsuaj loj hauv sab hauv:
Roj Deterioration hnyav
Kev tawg hluav taws xob < 25kV (Operating Oil), thiab roj lim tsis tuaj yeem rov qab → Muaj kev pheej hmoo siab ntawm rwb thaiv tsev ua haujlwm poob.
Cov ntsiab lus noo noo> 50ppm, Ntev -Lub Sij Hawm Tshaj Tawm → Ua kom nrawm nrawm ntawm daim ntawv laus thiab tsim cov sludge.
Acid Tus nqi> 0.1mgKOH / g, Nruam nce → Roj Oxidized, Corroding hlau thiab cov ntaub ntawv rwb thaiv tsev.
Dielectric Loss Factor (tanδ) > 0.01 (90 degree) → Qib siab ntawm Polar Impurities nyob rau hauv cov roj, Tseem ceeb zog poob.
Kev soj ntsuam ntawm Chromatographic txawv txav: Acetylene (C₂H₂) > 5μL/L → Arc Discharge Presence; Kev nce nrawm hauv Tag Nrho Hydrocarbons → Internal Overheating.
Kev puas tsuaj loj ntawm hluav taws xob ua haujlwm
Winding rwb thaiv tsev tiv thaiv poob qis dua 50% ntawm nws cov nqi pib, los yog qhov sib piv ntawm qhov nqus <1.3 → Rwb thaiv tsev yog ntub dej los yog hnub nyoog.
Winding DC tsis kam peb -theem imbalance> 4% (inter- kab> 2%) → Inter-tig luv Circuit Court lossis xoob txuas.
Qhov txawv txav tsis muaj-load/load poob → Deterioration ntawm cov tub ntxhais los yog winding qauv.
Nquag Tripping ntawm cov cuab yeej tiv thaiv
Rov qab ceeb toom rau lub teeb roj los yog tripping rau cov roj hnyav → Internal gas tiam, qhia tawm los yog overheating txhaum.
Kev tiv thaiv sib txawv; Tom qab tshem tawm cov kev ua txhaum sab nraud → Cov kev puas tsuaj loj hauv cov windings lossis cov tub ntxhais.
