Discharge hom high voltage switchgear
Apr 01, 2022
High-voltage switchgear yog hais txog kev ua haujlwm ntawm -off, tswj lossis tiv thaiv hauv kev tsim hluav taws xob, kev xa tawm, kev faib tawm, kev hloov hluav taws xob thiab kev siv hluav taws xob.
Hom kev tso tawm
1. Kev tso tawm sab hauv.
Thaum cov impurities los yog huab cua tsis zoo tshwm sim nyob rau hauv lub rwb thaiv tsev qauv ntawm lub siab -voltage switchgear, nws yog ib qho yooj yim ua rau sab hauv paug nyob rau hauv qhov kev txiav txim ntawm high voltage. Thaum lub sij hawm tsim cov txheej txheem insulating, hluav taws xob kev faib tawm ntawm cov txheej txheem insulating yog tsis sib xws vim kev xaiv ntawm cov xov xwm sib txawv lossis cov ntaub ntawv insulating nrog cov khoom siv tsis zoo. Internal tsis xws luag vim yog tsis tsim nyog installation. Internal paug tshwm sim los ntawm kev laus thiab deterioration ntawm insulators.
2. Creeping tawm.
Ntawd yog, qhov tshwm sim tawm tshwm sim los ntawm qhov chaw hluav taws xob sab nrauv lub zog ntawm cov txheej txheem insulating ntawm lub siab -voltage switchgear ntau tshaj qhov txwv tsis pub muaj nqi. Lub creeping paug feem ntau yog raws li ob qho tib si electrode cov lus qhia, thaum uas tig mus rau saum npoo ntawm lub switchgear rwb thaiv tsev qauv. Thaum lub creeping tawm siv loj txaus, nws yuav nkag mus rau hauv cov huab cua thiab ua rau kev sib txuas lus ntawm ob electrodes. Lub ntsiab yog vim li cas rau qhov chaw tawm ntawm lub txee hloov pauv yog cov av ntawm qhov chaw ntawm cov txheej txheem insulating thiab qhov kub thiab av noo ntawm cov pa roj.
3. Corona tso tawm.
Vim tias tsis muaj cov khoom siv insulating ntawm electrode nto, huab cua thiab electrode yog nyob rau hauv kev sib cuag ncaj qha. Thaum cov hluav taws xob xa hluav taws xob tsis sib npaug thiab ncav cuag ib qho kev txwv, cov hluav taws xob muaj zog yuav ua rau cov pa tawm thiab ua rau corona tawm. Corona tso tawm feem ntau yog tsim los ntawm cov hluav taws xob ntawm high - cov khoom siv hluav taws xob hluav taws xob raug huab cua.
