Qhov sib txawv thiab kev siv ntawm Circuit Breakers, Load Switches thiab Disconnectors
Dab tsi yog Circuit Court breakers, load keyboards thiab disconnectors? Piv txwv tias feem ntau cov neeg ua haujlwm hluav taws xob tau pom tseeb heev. Tab sis thaum nws los txog rau qhov sib txawv thiab daim ntawv thov ntawm Circuit Court breakers, load switches thiab disconnectors, ntau tus neeg ua hauj lwm hluav taws xob tsuas yog paub ib qho tab sis tsis yog lwm tus, thiab rau qee cov neeg pib hluav taws xob, lawv tsis paub yuav nug dab tsi. Peb txhua tus paub tias lub Circuit Court breaker tuaj yeem kaw, nqa thiab rhuav tshem tam sim no raws li cov xwm txheej hauv ib puag ncig, thiab tuaj yeem kaw, nqa thiab tawg tam sim no nyob rau hauv cov xwm txheej tsis zoo ntawm Circuit Court (xws li cov xwm txheej luv luv) hauv ib lub sijhawm. Lub tshuab hluav taws xob hloov pauv yog ib qho khoom siv hluav taws xob hloov hluav taws xob ntawm qhov hluav taws xob hluav taws xob thiab qhov hluav taws xob cais tawm. Nws muaj ib qho yooj yim arc extinguishing ntaus ntawv, uas tuaj yeem txiav tawm qhov ntsuas tam sim no thiab cov khoom siv tam sim no, tab sis tsis tuaj yeem txiav qhov luv luv tam sim no.
Kev hloov pauv yog ib lub voj voog uas tsis muaj kev sib txuas tam sim no, kom cov khoom siv tu thiab cov khoom siv hluav taws xob muaj qhov cuam tshuam tsis zoo, yog li ua kom muaj kev nyab xeeb ntawm tus kheej ntawm cov neeg ua haujlwm tu. Qhov kev rho tawm tsis muaj qhov tshwj xeeb arc-extinguishing ntaus ntawv, yog li cov khoom thauj tam sim no tsis tuaj yeem txiav tawm. Qhov luv-circuit tam sim no, yog li kev ua haujlwm ntawm kev sib cais yuav tsum tau ua tsuas yog thaum lub Circuit Court breaker raug txiav. Yog li cov lus nug yog, qhov sib txawv ntawm lub Circuit Court breaker, load hloov thiab disconnector yog dab tsi? Peb lub tshuab hluav taws xob siv nyob qhov twg? Kab lus hauv qab no yuav qhia koj paub meej. Tom qab nyeem tsab xov xwm, kuv cia siab tias nws tuaj yeem nkag siab tob txog kev nkag siab ntawm Circuit Court breakers, load keyboards thiab cais cov keyboards rau feem ntau ntawm cov neeg ua haujlwm hluav taws xob.
01 Kev piav qhia ntawm cov ntsiab lus ntawm kev hloov pauv, disconnector thiab Circuit Court breaker
Load hloov: Nws yog ib qho kev hloov khoom siv uas tuaj yeem kaw thiab txiav tawm qhov kev thauj khoom tam sim no, excitation tam sim no, them nyiaj tam sim no thiab lub txhab nyiaj capacitor tam sim no nyob rau hauv ib txwm ua haujlwm.
Kev rho tawm hloov: Nws txhais tau hais tias thaum nws nyob rau hauv txoj hauj lwm sib faib, muaj qhov kev ncua deb ntawm cov neeg sib cuag uas ua tau raws li qhov yuav tsum tau ua thiab ib qho kev pom tseeb ntawm kev sib txuas; Thaum nws nyob rau hauv qhov chaw kaw, nws tuaj yeem nqa tam sim no nyob rau hauv ib puag ncig Circuit Court tej yam kev mob thiab cov xwm txheej txawv txav (xws li luv luv Circuit Court) ) ntawm cov cuab yeej hloov tam sim no.
Circuit Court breaker: Nws yog ib qho kev hloov khoom siv uas tuaj yeem kaw, nqa thiab tawg tam sim no raws li cov xwm txheej hauv Circuit Court, thiab tuaj yeem kaw, nqa thiab tawg tam sim no nyob rau hauv cov xwm txheej txawv txav (suav nrog luv luv Circuit Court tej yam kev mob) nyob rau hauv ib lub sij hawm.
Vim tias qhov yuav tsum tau muaj ntawm cov lus qhia tshwj xeeb, muaj cov ntsiab lus tsis sib xws uas yuav tsum tau muaj nyob rau hauv qee lub voj voog, yog li kev hloov pauv tuaj yeem siv ib leeg, vim tias qhov pom kev cuam tshuam ntawm qhov taw tes tuaj yeem pom hauv Circuit Court, thiab Circuit Court breaker feem ntau yog siv nrog kev sib cais. Xyuas kom meej tias muaj qhov pom tseeb qhov cuam tshuam hauv Circuit Court. Lub tshuab hluav taws xob tsis tuaj yeem ua haujlwm nyob rau hauv kev thauj khoom, uas yog, nws tuaj yeem qhib thiab kaw thaum lub tshuab hluav taws xob cais tsis tuaj yeem qhib. Lub load hloov, raws li lub npe implies, yuav ua tau nyob rau hauv load, uas yog, nws yuav tsum tau switched rau thiab tawm thaum nws yog energized. Qhov xwm txheej yog thawj qhib thiab kaw.
02 Hom kev taw qhia ntawm kev hloov pauv, disconnector thiab Circuit Court breaker
Load keyboards, cais cov keyboards thiab Circuit Court breakers yog muab faib ua high voltage thiab tsawg voltage;
1. Rau lub load hloov:
Muaj rau lub ntsiab ntawm high voltage load switches:
① Cov khoom siv hluav taws xob tsim hluav taws xob muaj hluav taws xob hloov pauv: siv lub zog ntawm qhov tawg arc nws tus kheej los ua cov khoom siv hluav taws xob hauv lub arc chamber tsim cov roj kom tshuab tawm lub arc. Nws cov qauv yog qhov yooj yim, thiab nws tsim nyog rau cov khoom ntawm 35 kV thiab hauv qab no.
②Pneumatic high-voltage load hloov: siv cov roj compressed ntawm lub piston kom tshuab tawm lub arc thaum lub sij hawm tawg, thiab nws cov qauv yog yooj yim, haum rau cov khoom ntawm 35 kV thiab hauv qab no.
③ Compressed cua hom high-voltage load hloov: siv compressed cua tshuab tawm lub arc, thiab muaj peev xwm ua txhaum ib tug loj tam sim no. Nws cov qauv yog qhov nyuaj, thiab nws tsim nyog rau cov khoom ntawm 60 kV thiab siab dua.
④SF6 high-voltage load hloov: SF6 roj yog siv los tua cov arc, thiab nws qhov kev tawg tam sim no loj, thiab kev ua haujlwm ntawm kev tawg capacitive tam sim no yog qhov zoo, tab sis cov qauv yog qhov nyuaj, thiab nws tsim nyog rau cov khoom ntawm 35 kV thiab saum toj no.
⑤ Roj-immersed high-voltage load hloov: Siv lub zog ntawm lub arc nws tus kheej kom decompose thiab gasify cov roj nyob ib ncig ntawm lub arc thiab txias nws mus tua lub arc. Nws cov qauv yog qhov yooj yim, tab sis nws hnyav, thiab nws tsim nyog rau cov khoom siv sab nraum zoov ntawm 35 kV thiab hauv qab no.
⑥ Lub tshuab nqus tsev vacuum hom high-voltage load hloov: siv lub tshuab nqus tsev nruab nrab los tua cov arc, muaj hluav taws xob ntev thiab tus nqi siab, thiab tsim nyog rau cov khoom ntawm 220 kV thiab hauv qab no.
Qhov qis-voltage load hloov tseem hu ua hloov fuse pawg. Nws yog qhov tsim nyog rau kev hloov mus rau thiab tawm ntawm cov khoom siv hluav taws xob tsis tu ncua hauv AC fais fab zaus Circuit Court; nws kuj tseem siv tau rau overload thiab luv Circuit Court tiv thaiv kab. Lub Circuit Court breaker yog ua tiav los ntawm kev sib cuag hniav, thiab kev tiv thaiv overload thiab luv luv Circuit Court yog ua tiav los ntawm fuse.
2. Rau cais cov keyboards
Raws li kev sib txawv ntawm kev teeb tsa, cov hluav taws xob hluav taws xob hluav taws xob sib cais tuaj yeem muab faib rau sab nraum zoov high-voltage isolating keyboards thiab sab hauv tsev high-voltage isolating keyboards. Sab nraum zoov high-voltage rho tawm hloov yog hais txog lub high-voltage rho tawm hloov uas tuaj yeem tiv taus cov teebmeem ntawm cua, nag, daus, muaj kuab paug, condensation, dej khov thiab tuab te, thiab yog tsim rau installation ntawm terrace. Raws li cov qauv ntawm nws cov ncej insulating, nws tuaj yeem muab faib ua ib kem disconnectors, ob-kem disconnectors, thiab peb-kem disconnectors.
Ntawm lawv, ib leeg-kem riam hloov ncaj qha siv qhov chaw ntsug raws li cov hluav taws xob rwb thaiv tsev ntawm cov pob txha tawg nyob rau hauv lub overhead busbar. Yog li ntawd, nws muaj qhov pom tseeb qhov zoo ntawm kev txuag thaj chaw nyob, txo cov xaim xaim, thiab tib lub sijhawm qhib thiab kaw qhov xwm txheej tshwj xeeb yog qhov tseeb. Nyob rau hauv cov ntaub ntawv ntawm ultra-high voltage kis tau tus mob, cov nyhuv ntawm kev txuag lub hauv pem teb cheeb tsam yog qhov tseem ceeb tshaj tom qab lub substation txais yuav ib leeg-kem riam hloov.
Hauv cov khoom siv hluav taws xob tsawg, nws yog qhov tsim nyog rau cov khoom siv hluav taws xob tsawg-voltage hluav taws xob xws li cov tsev nyob thiab cov tsev. Lub luag haujlwm tseem ceeb: rhuav thiab txuas cov kab nrog kev thauj khoom
Nws yuav tsum tau muab sau tseg ntawm no hais tias nyob rau hauv lub low-voltage davhlau ya nyob twg lub hwj chim faib, kev rho tawm mus yuav segmented nrog load! Hauv lwm qhov xwm txheej, thiab nyob rau hauv kev kub siab, nws tsis raug tso cai!
3. Rau Circuit Court breakers
High-voltage Circuit Court breakers yog cov khoom siv hluav taws xob tseem ceeb hauv cov chaw tsim hluav taws xob, cov chaw ua haujlwm, thiab chav faib hluav taws xob. ; Thaum lub kaw lus tsis ua haujlwm, nws koom tes nrog kev tiv thaiv relay kom txiav tawm qhov txhaum tam sim no kom tsis txhob muaj qhov nthuav dav ntawm qhov kev sib tsoo.
Yog li ntawd, qhov zoo ntawm high-voltage Circuit Court breaker ncaj qha cuam tshuam rau kev nyab xeeb ntawm lub hwj chim system; muaj ntau hom hluav taws xob hluav taws xob hluav taws xob hluav taws xob, uas tuaj yeem muab faib ua cov roj hluav taws xob hluav taws xob (cov roj hluav taws xob ntau dua, cov roj hluav taws xob tsawg dua) raws li lawv cov hluav taws xob hluav taws xob. , Sulfur hexafluoride Circuit Court breaker (SF6 Circuit Court breaker), nqus Circuit Court breaker, compressed cua Circuit Court breaker, thiab lwm yam.
Lub tshuab hluav taws xob qis hluav taws xob tseem hu ua qhov hloov pauv tsis siv neeg, feem ntau hu ua "air switch", uas kuj yog hais txog qhov hluav taws xob qis hluav taws xob. Nws tuaj yeem siv los faib hluav taws xob hluav taws xob, pib asynchronous motors tsis tu ncua, tiv thaiv cov kab hluav taws xob thiab lub cev muaj zog, thiab lwm yam, thiab tuaj yeem txiav tawm Circuit Court thaum lawv hnyav dhau lossis luv luv lossis qis dua. Nws txoj haujlwm yog sib npaug ntawm lub fuse hloov thiab Kev sib xyaw ntawm overheating thiab underheating relays, thiab lwm yam. Ntxiv mus, nws yog feem ntau tsis tsim nyog los hloov qhov chaw tom qab tawg qhov txhaum tam sim no, thiab tau siv dav.
03 Qhov sib txawv ntawm kev hloov pauv, disconnector thiab Circuit Court breaker
1. Lub load hloov tuaj yeem tawg nrog kev thauj khoom thiab muaj kev ua haujlwm ntawm tus kheej-extinguishing arc, tab sis nws lub peev xwm tawg yog me me thiab txwv.
2. Feem ntau, qhov hloov pauv tsis tuaj yeem tawg nrog kev thauj khoom. Tsis muaj arc extinguisher nyob rau hauv cov qauv, thiab tseem muaj kev rho tawm cov hloov pauv uas tuaj yeem ua rau lub nra hnyav, tab sis cov qauv sib txawv ntawm qhov hloov pauv, uas yog qhov yooj yim.
3. Ob qhov kev hloov pauv thiab qhov hloov pauv tuaj yeem tsim qhov pom tseeb qhov cuam tshuam. Feem ntau cov hluav taws xob hluav taws xob tsis muaj kev sib cais, thiab qee qhov hluav taws xob hluav taws xob muaj cov haujlwm cais tawm.
4. Lub tshuab hluav taws xob cais tsis muaj kev tiv thaiv kev ua haujlwm. Kev tiv thaiv ntawm qhov hloov pauv yog feem ntau tiv thaiv los ntawm fuse, tsuas yog tawg sai thiab overcurrent.
5. Lub peev xwm tawg ntawm Circuit Court breaker tuaj yeem ua tau siab heev hauv kev tsim khoom. Nws tsuas yog tso siab rau kev ntxiv tam sim no transformers los koom tes nrog cov khoom siv thib ob rau kev tiv thaiv. Nws tuaj yeem muaj kev tiv thaiv luv luv, tiv thaiv overload, tiv thaiv to thiab lwm yam haujlwm.