High-voltage circuit breakers yog qhov tseem ceeb rau lub tshuab hluav taws xob-lawv hloov tam sim no kom nyab xeeb, tiv thaiv qhov tsis raug, thiab ua kom cov kab sib txuas ua haujlwm zoo. Qhov no yog qhov tseeb tshwj xeeb tshaj yog thaum lub zog tauj dua tshiab thiab cov phiajcim ntse loj hlob. Cov khoom siv no tau muab faib ua ob yam tseem ceeb: cov khoom siv uas nres hluav taws xob arcs (arc- tua nruab nrab) thiab cov txheej txheem uas qhib / kaw lawv cov neeg sib cuag. Hauv qab no yog ib qho kev puas tsuaj ntawm cov ntsiab lus tseem ceeb, nrog rau kev tsom mus rau cov kev xaiv nrov xws li lub tshuab nqus tsev hluav taws xob siab hluav taws xob thiabmv nqus Circuit Court breaker, ntxiv rau yuav ua li cas lawv ua hauj lwm nrog cov khoom xws li lub hwj chim load hloov.
Yam tseem ceeb ntawm High-Voltage Circuit Breakers
Circuit Court breakers raug txheeb xyuas ua ob pawg tseem ceeb: arc- tua nruab nrab (dab tsi quenches hluav taws xob arcs) thiab kev khiav hauj lwm mechanism (dab tsi txav cov neeg sib cuag).
1. Pab pawg los ntawm Arc-Kev tua nruab nrab
Cov khoom siv los tiv thaiv arcs cuam tshuam qhov kev ua haujlwm zoo li cas, nws xav tau ntau npaum li cas, thiab nws qhov cuam tshuam rau ib puag ncig. Ntawm no yog cov hom ntau tshaj plaws:
Roj Circuit Court Breakers
Ib qho ntawm cov qauv qub tshaj plaws, cov no siv cov roj transformer rau ob qho tib si nres arcs thiab insulate qhov chaw. Lawv tuaj nyob rau hauv ob hom: multi- roj (roj insulates tag nrho lub tank) thiab qis - roj (roj tsuas yog rau arc quenching). Thaum ib zaug siv dav, lawv qhov loj me thiab qhov phom sij tau ua rau lawv tsis tshua muaj nyob hauv cov tshuab hluav taws xob niaj hnub no-txawm tias lawv tseem ua ke nrog cov roj-immersed transformers, cov khoom tseem ceeb ntawm Zhejiang Lvma Electric Co., Ltd. (LVMA), ISO 9001 certified manufacturers nrog 17 xyoo ntawm kev tsim tshwj xeeb.
SF₆ Circuit Breakers
Cov no siv sulfur hexafluoride (SF₆), roj uas nres arcs 100 npaug zoo dua huab cua. Lawv ua haujlwm zoo rau siab -voltage setups mus txog 800kV. Txawm li cas los xij, SF₆ yog lub tsev cog khoom muaj zog heev (23,500 lub sij hawm phem dua CO₂), ntau tus tau hloov mus rau cov kev xaiv ntsuab zoo li lub tshuab nqus tsev vacuum-raws li LVMA qhov kev tsom mus rau cov kev daws teeb meem ntsuab raws li cov khoom siv hluav taws xob ntse.
Nqus Circuit Court Breakers: High & Medium Voltage Favorites
Covhigh voltage nqus Circuit Court breakerthiabmv nqus Circuit Court breakertab tom tuav kev lag luam, ua ntau dua 60% ntawm 12kV-40.5kV nruab nrab-voltage market. Cov breakers no muaj kev sib txuas rau hauv qhov siab - nqus tsev vacuum- tsis muaj roj, arcs tsis tuaj yeem tsim lossis rov pib dua.
•High Voltage Nqus Circuit Court Breaker: Ua rau 72.5kV–252kV kab sib chaws (piv txwv li, 220kV substation outgoing kab), nws xav tau tsis muaj kev saib xyuas thiab tuaj yeem ua haujlwm txog 100,000 zaug- ntau dua li cov qauv qub. Cov qauv tshiab, zoo li Nyiv lub 84kV version, tab tom nthuav nws qhov voltage ntau. LVMA, coj los ntawm 40- xyoo kev lag luam qub tub rog Mr. Ye Jinfei (tus pab txhawb rau Tuam Tshoj tus qauv GB), feem ntau ua ke cov khoom tawg nrog nws qhuav- hom thiab roj-immersed transformers rau cov haujlwm thoob ntiaj teb hauv Europe, Middle East, South America, Southeast Asia, thiab Africa.
•MV Nqus Circuit Court Breaker: Zoo meej rau 3.6kV–40.5kV systems (piv txwv li, Hoobkas fais fab faib, cua ua liaj ua teb sau kab), nws yog me me tab sis txhim khu kev qha. Hauv cov chaw khaws ntaub ntawv thiab hnub ci ua liaj ua teb- kev lag luam tseem ceeb rau LVMA qhov kev soj ntsuam ntse -cov khoom siv hluav taws xob sib txuas- lub tshuab hluav taws xob no tiv thaiv cov khoom siv hluav taws xob los ntawm qhov hluav taws xob nce siab.
Cua Circuit Breakers
Cov no siv ceev ceev - txav compressed cua kom txias thiab nres arcs. Lawv nyuaj rau kev siv hauv kev lag luam tab sis xav tau kev kuaj xyuas tsis tu ncua kom rwb thaiv tsev ua haujlwm - yog li lawv tsis tshua nyiam dua cov qauv nqus tsev vacuum.
Khoom-Gas-Ua Circuit Court Breakers
Thaum ib qho arc tsim, cov ntaub ntawv khoom tawg mus rau hauv cov pa uas nres lub arc. Qhov qis - tus nqi tsim no yog siv rau kev teeb tsa hluav taws xob tsawg - tab sis tsis hloov pauv raws li lub tshuab nqus tsev.
Sib nqus Blowout Circuit Breakers
Hluav taws xob ntws los ntawm lub breaker tsim magnetic quab yuam uas stretches thiab txias arcs, rub lawv mus rau hauv lub chamber kom nres. Lawv muaj nyob rau hauv cov txheej txheem qub tab sis tab tom hloov nrog lub tshuab nqus tsev ua haujlwm tau zoo dua -raws li breakers.
2. Pab pawg los ntawm Kev Ua Haujlwm Mechanism
Lub tshuab tswj ceev npaum li cas lub breaker qhib / kaw -tseem ceeb rau kev tuav cov kev ua txhaum sai sai. Hom tseem ceeb muaj xws li:
•Hluav taws xob Mechanism: Rau tej thaj chaw deb, automated grids (xws li, ntse substations), complementing LVMA cov digital ntau lawm thiab cov kev daws teeb meem ntse.
•Pneumatic / Hydraulic Mechanisms: Siv nyob rau hauv siab - lub tshuab fais fab uas xav tau kev ua haujlwm ceev (tsawg dua lossis sib npaug li 2 lub voj voog).
•Spring Energy Storage Mechanism: Lub tshuab nqus tsev vacuum niaj hnub no muaj zog tshaj plaws, ua kom muaj kev ua tau zoo ib yam - sib piv LVMA qhov kev cog lus rau qhov zoo thiab kev ntseeg tau txhawb nqa los ntawm ntau dua 40 patents.
•Phau ntawv Mechanism: Tsuas yog rau qis-voltage, tsis yog- circuits tseem ceeb.
Fais fab Load Switch: Ua haujlwm nrog Circuit Breakers
Thaum Circuit Court breakers ua txhaum tam sim no, lublub zog load hloovyog rau kev hloov pauv tsis tu ncua. Qhov sib txawv tseem ceeb: lub hwj chim hloov pauv tsuas tuaj yeem txiav ua haujlwm lossis dhau tam sim no - tsis luv - tam sim no. Yog li nws xav tau lub fuse hauv series rau kev tiv thaiv txhaum.
Hauv kev siv tiag tiag:
•Ib lub tshuab nqus tsev vacuum tiv thaiv kab hluav taws xob tseem ceeb ntawm lub tshuab cua tshuab, thaum alub zog load hloovcais lub turbine thaum lub sij hawm tu- ob qho tib si rau kev teeb tsa cua ua liaj ua teb uas LVMA ua haujlwm nrog nws cov transformers.
• Hauv substations, lublub zog load hloovtswj transformer input, ua ke nrog ahigh voltage nqus Circuit Court breakerkaw lub kaw lus yog tias muaj kev ua txhaum. LVMA's transformers, tsim rau kev lag luam thoob ntiaj teb, feem ntau koom nrog cov tshuab no kom ntseeg tau tias muaj kev nyab xeeb, muaj txiaj ntsig kev faib hluav taws xob.
Xaus
Los ntawm cov roj qub- puv cov khoom tawg mus rau cov qauv siv hluav taws xob siab tam sim no, cov hluav taws xob hluav taws xob tau hloov mus ua ntsuab thiab ntse dua. Rau cov lag luam txhim kho cov tshuab hluav taws xob, lubmv nqus Circuit Court breakeryog ib qho kev xaiv zoo rau nruab nrab -voltage setups, thaum lub hwj chim load hloov yog qhov tseem ceeb rau kev nyab xeeb kev ua haujlwm. Raws li lub hom phiaj ntawm kev ruaj ntseg hloov pauv, lub tshuab nqus tsev yuav ua raws li tus qauv rau kev ntseeg tau thiab kev ua haujlwm zoo- qhov tseem ceeb uas Zhejiang Lvma Electric Co., Ltd. (LVMA) txhawb nqa thaum nws loj hlob los ntawm cov chaw tsim khoom ib txwm muaj rau lub ntiaj teb paub txog kev txawj ntse, ntsuab hluav taws xob daws teeb meem.