Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm transformer bushings yog ua raws li kev faib hluav taws xob capacitive thiab ntau- txheej txheej rwb thaiv tsev. Nws cov tub ntxhais yog qhov sib txawv ntawm cov hluav taws xob hluav taws xob nyob rau hauv cov tub ntxhais hauv lub capacitor, tiv thaiv ib feem ntawm kev tawm thiab rwb thaiv tsev, yog li kev nyab xeeb ua rau lub siab thiab qis voltage coj los ntawm transformer mus rau sab nraud ntawm lub tank. Nws tsis tsuas yog nqa tam sim no, tsis tu ncua hla lub sijhawm ua haujlwm, tab sis kuj yuav tsum tiv taus tam sim no siab tam sim no thiab kub siab nyob rau hauv huab cua xws li luv luv Circuit Court.
Kev piav qhia ntxaws txog Txoj Cai Ua Haujlwm
Capacitive Voltage Division Mechanism
Capacitive bushings (feem ntau yog siv nyob rau hauv 66kV thiab siab tshaj -voltage systems) muaj ntau txheej txheej ntawm hlau ntawv (aluminium foil) thiab insulating ntawv alternately raug mob los tsim ib tug "capacitor core," uas yog ib tug series ntawm series - txuas capacitor shields. Cov qauv no siv lub hauv paus ntsiab lus ntawm kev faib hluav taws xob hluav taws xob los ua kom qhov hluav taws xob faib raws qhov ntev ntawm cov bushing ntau yam, tsis txhob cuam tshuam los ntawm hluav taws xob qhov chaw.
Synergistic nyhuv ntawm Main Rwb thaiv tsev thiab Sab nrauv rwb thaiv tsev
Lub ntsiab rwb thaiv tsev: Cov qauv cylindrical tsim los ntawm cov roj-impregnated cable daim ntawv thiab capacitor shields, muab thawj qhov hluav taws xob cais.
Sab nrauv Rwb thaiv tsev: Feem ntau yog ua los ntawm cov plooj (porcelain) lossis cov khoom sib xyaw, nws tiv taus qhov kev ncua deb ntawm qhov kev xav tau nyob rau hauv ib puag ncig ib puag ncig (xws li nag, daus, thiab av) kom muaj zog rwb thaiv tsev rau hauv av.
Sealing thiab Thermal Stability Design
Lub bushing yog cov qauv kaw tag nrho uas muaj cov roj insulating. Cov roj conservator kho qhov ntim nthuav dav tshwm sim los ntawm kev hloov pauv kub, thiab lub ntsuas roj ntsuas cov roj qib. Cov qauv yog caij nplooj ntoos hlav-loaded los them rau deformation tshwm sim los ntawm thermal expansion thiab contraction, kom ntseeg tau ntev - lub sij hawm sealing kev ua tau zoo.
Kev sib npaug thiab kev tiv thaiv av
Ib lub pob sib npaug yog nyob rau ntawm tus Tsov tus tw kawg txhawm rau txhim kho cov hluav taws xob xa hluav taws xob thiab txo qhov kev ncua deb ntawm tus Tsov tus tw kawg thiab cov khoom siv hauv av. Lub bushing me me ntawm qhov kawg yog siv los ntsuas dielectric poob lossis ib feem ntawm qhov paug thaum kuaj thiab yuav tsum muaj kev ntseeg siab hauv av thaum ua haujlwm.
