Transformer porcelain bushings feem ntau yog ua los ntawm tag nrho stabilized zirconia (ZrO₂) cov khoom siv ceramic. Cov khoom no muaj cov thermal stability zoo heev thiab siab -kub oxygen ion conductivity, ua tau raws li qhov yuav tsum tau muaj zog ntawm cov tshuab hluav taws xob rau cov khoom siv rwb thaiv tsev.
Nws kev tsim khoom feem ntau siv 8 mol% Y₂O₃ stabilized ZrO₂ hmoov thiab yog tsim los siv cov tshuab txias isostatic nias ntawm lub siab ntawm 120 MPa los ua kom zoo dua cov qauv dawb paug thiab cov khoom siv tshuab.
Nyob ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov chaw ua haujlwm, cov qauv thiab cov khoom siv ua ke ntawm cov plooj (porcelain bushing) txawv:
Pure Porcelain Bushing: Siv hluav taws xob plooj (porcelain) ua cov khoom siv hluav taws xob tseem ceeb, tsim rau transformers ntawm 10kV thiab qis dua lossis 40kV thiab hauv qab. Nws nta cov qauv yooj yim thiab kev saib xyuas yooj yim.
Roj-Pilled Bushing: Sau nrog roj, nrog ib qho khoom siv hluav taws xob sab hauv qhwv hauv daim ntawv insulating. Feem ntau siv hauv 35kV transformers.
Capacitive bushings: Siv nyob rau hauv siab -voltage transformers saum 100kV, lub ntsiab rwb thaiv tsev yog ib tug capacitor core, thiab cov rwb thaiv tsev sab nraud muaj cov khoom siv sab sauv thiab sab qis, ua ke nrog cov roj, epoxy resin, thiab lwm yam xov xwm kom ua tiav siab - rwb thaiv tsev.
Tsis tas li ntawd, porcelain bushings, raws li cov khoom tseem ceeb hauv kev xa hluav taws xob thiab cov khoom siv hloov pauv, kuj tau siv dav hauv SF6 Circuit Court breakers, capacitors, thawj harmonic suppressors, thiab lwm yam khoom siv, ua kev txhawb zog, hluav taws xob rwb thaiv tsev, thiab tiv thaiv cov qauv sab hauv los ntawm ib puag ncig cuam tshuam. Niaj hnub nimno siab -kev ua tau zoo porcelain bushings yuav tsum tau raws li cov kev specifications xws li concentricity tsawg dua los yog sib npaug zos rau 0.3 hli, phab ntsa thickness txawv tsawg tshaj li los yog sib npaug zos rau 0.3 hli, ncaj tsawg dua los yog sib npaug rau 0.5 hli, bulk ntom ntau dua los yog sib npaug rau 5.9g / cm³, thiab kuj mus rau 400℃ntawm thermal cycling.
