GIS (Gas Insulated Switchgear) yog cov lus Askiv luv luv rau cov roj insulated tag nrho cov khoom siv hluav taws xob, uas yog cov roj hluav taws xob insulated hlau kaw. GIS yog tsim los ntawm Circuit Court breakers, cais cov keyboards, grounding switches, transformers, lightning arresters, busbars, connectors, and outgoing terminals. Cov khoom siv lossis cov khoom siv no yog tag nrho nyob rau hauv cov hlau hauv av casing, uas muaj SF6 rwb thaiv tsev roj ntawm ib tug tej yam siab nyob rau hauv, yog li nws tseem hu ua SF6 tag nrho enclosed switchgear.
GIS cov cuab yeej siv tau dav siv thoob ntiaj teb txij li nws siv tau hauv xyoo 1960s. GIS tsis yog tsuas yog siv dav hauv high-voltage thiab ultra-high voltage teb, tab sis kuj nyob rau hauv ultra-high voltage teb. Piv nrog rau cov pa qhib hom substations, GIS muaj qhov zoo ntawm cov qauv compact, me me hneev taw, muaj kev ntseeg siab, hloov tau yooj yim, yooj yim installation, muaj kev nyab xeeb, muaj zog ib puag ncig adaptability, tsawg kawg nkaus tu workload, thiab ib tug txij nkawm ncua sij hawm tsis pub tsawg tshaj 20 xyoo rau nws. cov khoom tseem ceeb.
GIS yog cov khoom siv hluav taws xob muaj hluav taws xob siab nrog kev ua haujlwm siab, kev ua haujlwm tsis tshua muaj txij nkawm, thiab lub sijhawm ua haujlwm ntev. Nws qhov kev ua tsis tiav tsuas yog 20% mus rau 40% ntawm cov khoom siv pa. Txawm li cas los xij, GIS kuj muaj nws qhov tsis txaus ntseeg. Vim muaj yam xws li SF6 roj to, sab nraud ya raws infiltration, muaj conductive impurities, thiab insulator aging, nws yuav ua tau rau sab hauv flashover faults nyob rau hauv GIS. Lub kaw lus kaw tag nrho ntawm GIS ua rau muaj qhov yuam kev hauv cheeb tsam thiab kev saib xyuas nyuaj, thiab kev saib xyuas kev ua haujlwm nyuaj. Lub sijhawm nruab nrab ntawm lub zog hluav taws xob tu lub sijhawm tom qab kev sib tsoo yog ntev dua li cov khoom siv ib txwm siv, thiab nws cov hluav taws xob hluav taws xob ntau yog qhov loj, feem ntau suav nrog ntau yam tsis raug.