Lub Circuit Court breaker uas SF6 nyob rau hauv siab gas siv los tua lub arc hu ua SF6 Circuit Court breaker. SF6 (sulphur hexafluoride) cov pa roj muaj qhov zoo tshaj plaws dielectric, arc quenching, tshuaj lom neeg thiab lwm yam khoom siv lub cev uas tau ua pov thawj nws qhov zoo tshaj lwm qhov nruab nrab arc quenching xws li roj lossis cua. SF6 Circuit Court breaker feem ntau muab faib ua peb hom:
- Tsis-puffer piston Circuit Court breaker
- Ib leeg-puffer piston Circuit Court breaker.
- Ob chav puffer piston Circuit Court breaker.
Lub Circuit Court breaker uas siv huab cua thiab roj ua ib qho nruab nrab insulating, lawv arc extinguishing quab yuam tsim tau kuj qeeb tom qab txav ntawm kev sib cuag sib cais. Nyob rau hauv cov ntaub ntawv ntawm high voltage Circuit Court breakers ceev arc extinction zog yog siv uas yuav tsum tau tsawg lub sij hawm rau ceev rov qab, voltage tsim. SF6 Circuit Court breakers muaj cov khoom zoo hauv qhov no hais txog piv rau cov roj lossis cua hluav taws xob hluav taws xob. Yog li nyob rau hauv high voltage mus txog 760 kV, SF6 Circuit Court breakers yog siv.
Cov khoom ntawm Sulfur hexafluoride Circuit Breaker
Sulfur hexafluoride muaj insulating zoo heev thiab arc quenching zog. Cov khoom no yog
- Nws yog xim tsis muaj xim, tsis muaj ntxhiab tsw, tsis muaj tshuaj lom, thiab tsis yog-inflammable gas.
- SF6 roj yog qhov ruaj khov thiab tsis muaj zog, thiab nws qhov ceev yog tsib npaug ntawm huab cua.
- Nws muaj cov thermal conductivity zoo dua li cov huab cua thiab pab ua kom txias txias tam sim no nqa qhov chaw.
- SF6 roj yog qhov muaj zog electronegative, uas txhais tau hais tias cov hluav taws xob dawb tau yooj yim tshem tawm los ntawm kev tsim cov ions tsis zoo.
- Nws muaj cov cuab yeej tshwj xeeb ntawm kev sib koom ua ke sai sai tom qab lub hauv paus energizing spark raug tshem tawm. Nws yog 100 lub sij hawm zoo dua piv rau arc quenching nruab nrab.
- Nws lub zog dielectric yog 2.5 npaug ntawm huab cua thiab 30% tsawg dua li cov roj dielectric. Thaum lub zog siab lub zog dielectric ntawm cov pa nce.
- Cov dej noo muaj teeb meem heev rau SF6 Circuit Court breaker. Vim muaj kev sib xyaw ua ke ntawm cov av noo thiab SF6 roj, hydrogen fluoride yog tsim (thaum lub arc cuam tshuam) uas tuaj yeem tawm tsam qhov chaw ntawm cov khoom tawg.
Kev tsim kho ntawm SF6 Circuit Breakers
SF6 Circuit Court breakers feem ntau muaj ob feem, uas yog (a) lub interrupter unit thiab (b) gas system.
Interrupter Unit - Chav tsev no muaj kev txav mus los thiab kev sib cuag ruaj khov uas suav nrog cov khoom nqa tam sim no thiab kev sojntsuam arcing. Nws txuas nrog SF6 gas reservoir. Chav tsev no muaj cov swb vents nyob rau hauv cov kev txav chaw uas tso cai rau cov pa roj rau hauv lub tank loj.
Gas System - Lub kaw hluav taws xob kaw hluav taws xob yog ua haujlwm hauv SF6 Circuit Court breakers. SF6 roj yog kim, yog li nws tau rov qab ua dua tom qab txhua qhov haujlwm. Chav tsev no muaj cov chav tsis tshua muaj siab thiab siab siab nrog lub tswb qis nrog rau kev ceeb toom keyboards. Thaum lub siab ntawm cov pa roj tsawg heev vim tias lub zog dielectric ntawm cov pa roj txo qis thiab lub peev xwm arc quenching ntawm cov hluav taws xob muaj kev puas tsuaj, qhov system no muab lub tswb ceeb toom.
Txoj Cai Ua Haujlwm ntawm SF6 Circuit Breaker
Hauv kev ua haujlwm ib txwm muaj, cov kev sib cuag ntawm lub breaker raug kaw. Thaum qhov kev ua txhaum tshwm sim hauv qhov system, cov kev sib cuag raug rub tawm, thiab ib qho arc raug ntaus ntawm lawv. Qhov kev hloov pauv ntawm cov neeg sib txuas yog synchronized nrog lub valve uas nkag mus rau lub siab-siab SF6 roj nyob rau hauv lub arc cuam tshuam chamber ntawm ib tug siab ntawm txog 16kg / cm^2.
Cov roj SF6 absorbs cov hluav taws xob dawb hauv txoj kev arc thiab tsim cov ions uas tsis ua raws li cov khoom thauj. Cov ions no nce lub zog dielectric ntawm cov pa thiab yog li cov arc raug tua. Cov txheej txheem no txo qhov siab ntawm SF6 roj mus txog 3kg / cm^2 yog li; nws yog khaws cia nyob rau hauv lub low-pressure reservoir. Cov pa roj uas tsis tshua muaj siab no yog rub rov qab mus rau lub qhov dej siab siab kom rov siv dua.
Tam sim no ib hnub puffer piston siab yog siv los tsim cov arc quenching siab thaum lub sijhawm qhib kev ua haujlwm los ntawm kev siv lub piston txuas rau cov neeg tsiv.
Qhov zoo ntawm SF6 Circuit Court breaker
SF6 Circuit Court breakers muaj qhov zoo hauv qab no tshaj li cov pa hluav taws xob
- SF6 roj muaj qhov zoo heev insulating, arc extinguishing thiab ntau lwm yam khoom uas yog qhov zoo tshaj plaws ntawm SF6 Circuit Court breakers.
- Cov pa roj yog non-inflammable thiab chemically ruaj khov. Lawv cov khoom decomposition tsis yog tawg thiab yog li tsis muaj kev pheej hmoo ntawm hluav taws kub lossis tawg.
- Kev tshem tawm hluav taws xob tau txo qis heev vim yog lub zog dielectric siab ntawm SF6.
- Nws qhov kev ua tau zoo tsis cuam tshuam vim kev hloov pauv hauv huab cua.
- Nws muab kev ua haujlwm tsis muaj suab nrov, thiab tsis muaj teeb meem dhau qhov hluav taws xob vim hais tias lub arc yog extinguished ntawm ntuj tam sim no xoom.
- Tsis muaj qhov txo qis hauv lub zog dielectric vim tias tsis muaj cov pa roj carbon monoxide tsim thaum lub sij hawm arcing.
- Nws yuav tsum tau muaj kev saib xyuas tsawg dua thiab tsis muaj nqi compressed cua system yuav tsum tau.
- SF6 ua haujlwm ntau yam xws li tshem tawm cov kab luv luv, hloov pauv, qhib cov kab sib txuas, thiab hloov pauv hloov pauv, thiab lwm yam yam tsis muaj teeb meem.
Disadvantages ntawm SF6 Circuit Court breakers
- SF6 roj yog suffocating rau qee yam. Nyob rau hauv cov ntaub ntawv ntawm to nyob rau hauv lub breaker tank, lub SF6 roj yog hnyav dua huab cua thiab li no SF6 yog nyob rau hauv ib puag ncig thiab ua rau lub suffocation ntawm cov neeg ua hauj lwm.
- Qhov nkag ntawm noo noo nyob rau hauv lub SF6 breaker tank yog heev txaus ntshai rau lub breaker, thiab nws ua rau ob peb tsis ua hauj lwm.
- Cov khoom sab hauv yuav tsum tau ntxuav thaum lub sij hawm tu lub sij hawm nyob rau hauv ib puag ncig huv si thiab qhuav.
- Qhov chaw tshwj xeeb xav tau kev thauj mus los thiab kev saib xyuas cov roj zoo.
(Peb hais cov lus no los ntawm lub vev xaib no: https://circuitglobe.com/sf6-sulphur-hexaflouride-circuit-breaker.html)
Post lub sij hawm: Oct-25-2023