Siab - Voltage bushing yog hais txog cov cuab yeej uas tso cai rau ib lossis ntau tus neeg saib xyuas kom dhau los ntawm phab ntsa lossis cov thawv rau rwb thaiv tsev thiab kev txhawb nqa, thiab yog ib qho cuab yeej tseem ceeb hauv lub zog hluav taws xob. Nyob rau hauv cov txheej txheem kev tsim khoom, tsheb thauj mus los thiab txij nkawm, siab - cov hluav taws xob bushings yuav muaj latent tsis xws luag vim muaj ntau yam; Thaum ntev ntev ntev ntev kev ua haujlwm, lawv cuam tshuam los ntawm cov teebmeem ntawm hluav taws xob teb thiab cov neeg ua haujlwm cua sov thiab tshuaj lom neeg cov neeg mob corrosion. Kuj tseem yuav muaj kev tsis xws luag maj mam.
Siab - Voltage bushings feem ntau yog siv rau kev rwb thaiv tsev av xws li transformers, reactors, thiab siab - voltage voj voog dhau los ntawm cov phab ntsa. Muaj peb hom voltage high voltage bushings: ib leeg dielectric bushing, puas yog dielectric bushing thiab capactritive bushing. Lub ntsiab rwb thaiv tsev ntawm lub peev xwm tseem ceeb ntawm lub peev xwm tseem ceeb yog tsim los ntawm kev coaxial cylindrictricte insulating cov ntaub ntawv thiab ntawv ci hlau electrodes rau ntawm cov pas nrig ntaus. Raws li cov ntaub ntawv insulating sib txawv, nws tau muab faib ua ke cov ntawv gmmed thiab cov roj maub lub peev xwm. 110Kv thiab saum hloov pauv siab siab - Voltage bushings feem ntau yog roj -ntawvHom capacitor; Nws yog tsim cov ntaub thaiv cov khoom siv, cov roj ntim cov roj, capalritorary veneers, capacitor num, coj tus pas, flange, thiab pob siab.
Thaum lub sijhawm ua haujlwm ntawm lub siab - voltage bushing, lub rwb thaiv tsev tseem ceeb yuav tiv thaiv kom muaj voltage siab, thiab qhov feem yuav tsum tau dais tam sim no. Lub ntsiab tseem ceeb yog qhov tsis zoo sib txuas ntawm cov hluav taws xob sab hauv thiab sab nraud ntawm caporting, ib nrab tawm ntawm capacitor, part discharge្ capac of ntawm capacitor ua thiab tawm ntawm qhov kawg screen rau hauv av, thiab lwm yam.
Lub transformer bushing yog ib qho khoom siv hluav taws xob uas ua rau lub siab - voltage xaim rau sab nraum cov roj tank, thiab ua haujlwm raws li kev txhawb nqa kev txhawb nqa thiab kev ua haujlwm hauv av. Thaum lub sijhawm ua haujlwm ntawm tus hloov pauv, cov thauj khoom tam sim no dhau mus ntev, thiab luv - Circuit Coad tam sim no dhau mus thaum lub sij hawm luv tshwm sim sab nraum lub transformer.
Yog li ntawd, tus transformer bushing muaj cov kev cai hauv qab no:
Yuav tsum muaj lub zog hluav taws xob teev thiab lub zog kho kom zoo;
Nws yuav tsum muaj zoo thermal stability thiab muaj peev xwm tiv thaiv instantaneous overheating thaum luv luv thaum luv - circuited; me me hauv cov duab, me me nyob rau hauv huab hwm coj, thiab zoo hauv kev sib khi ua tau zoo.
Kev sib faib
High - voltage bushings tuaj yeem faib ua cov roj - ntim bushings thiab capacitive bushings.
Lub cablentawvNyob rau hauv cov roj - Pushing yog zoo li cov sib luag phaj hauv lub peev xwm capacitive. Lub capapritor indees nyob rau hauv lub peev xwm capinival cylindrical cylindrical constulating daim ntawv yog siab tshaj li ntawm cov roj, uas tuaj yeem txo lub zog ntawm lub zog muaj.
Roj - Cov Bushings tuaj yeem faib ua ib qho khoom noj roj thiab ntau cov roj sib txawv ntawm cov roj av tuaj yeem faib ua cov hnab pos hniav thiab roj hmab.
Cov tes tsho tau siv thaum tam sim no cov neeg nqa khoom yuav tsum dhau los ntawm cov ntaub thaiv hlau lossis phab ntsa ntawm cov muaj peev xwm sib txawv. Raws li cov sijhawm siv tau no, cov khoom tawg tuaj yeem faib ua transformer bushings, bushings rau cov khoom siv hluav taws xob, thiab cov ntoo fais fab. For this “plug-in” electrode arrangement, the electric field is very concentrated at the edge of the outer electrode (such as the middle flange of the bushing), where the discharge often starts.
Kev siv thiab cov yam ntxwv ntawm casing
High - voltage bushings yog siv rau siab - cov hluav taws xob coj mus hla (xws li cov khoom sib txawv thiab cov hlau siv hluav taws xob) rau rwb thaiv tsev thiab txhawb nqa. Vim tias qhov tsis sib luag ntawm lub fais fab teb hauv bushing, tshwj xeeb tshaj yog cov hluav taws xob factrated ntawm ntug kev flange, nws yog ib qho yooj yim los ua rau kev tawm mus sab nraud. Lub ntsej muag sab hauv ntawm bushing nrog lub zog voltage ntau dua, feem ntau siv sib xyaw ua ke cov ntaub ntawv, thiab muaj teeb meem xws li kev tshem tawm ib nrab. Yog li ntawd, qhov kev xeem thiab tshuaj xyuas ntawm cov teeb meem yuav tsum muaj zog.
Lub sijhawm Post: Mar - 27 - 2023