Load Switch yog dab tsi?

Ib qho kev hloov pauv ntawm lub Circuit Court breaker thiab disconnector
Nws yog feem ntau nruab nrog ib tug yooj yim arc extinguishing ntaus ntawv, tab sis nws cov qauv yog kuj yooj yim. Daim duab qhia tau hais tias compressed cua hom high-voltage load hloov. Nws cov txheej txheem ua haujlwm yog: thaum qhib qhov hloov, nyob rau hauv qhov kev txiav txim ntawm lub caij nplooj ntoos hlav qhib, lub ntsiab ncej tig clockwise. Ntawm qhov tod tes, lub piston txav mus los ntawm lub crank slider mechanism rau compress cov roj; Ntawm qhov tod tes, los ntawm kev sib kis tau tsim los ntawm ob pawg ntawm plaub-bar mechanisms, lub ntsiab hloov riam yog qhib ua ntej, thiab tom qab ntawd lub arc extinguishing riam raug thawb kom qhib lub arc tiv tauj, thiab cov cua compressed hauv lub tog raj kheej tawm. lub arc los ntawm lub nozzle.

1. Lub tswv yim yooj yim
Lub load hloov yog hloov ntawm ib qho hluav taws xob hluav taws xob thiab lub disconnector. Nws muaj ib qho yooj yim arc extinguishing ntaus ntawv thiab tuaj yeem txiav tawm qhov ntsuas tam sim no thiab cov khoom siv tam sim no, tab sis tsis tuaj yeem txiav tawm qhov luv luv tam sim no.
2. Kev faib tawm ntawm cov khoom hloov pauv
Raws li kev khiav hauj lwm voltage, nws tuaj yeem muab faib ua high-voltage load switches thiab low-voltage load switches.
2.1 High-voltage load hloov
2.1.1 Muaj 6 lub ntsiab ntawm high-voltage load switches.
① Cov khoom siv hluav taws xob tsim hluav taws xob muaj hluav taws xob hloov pauv: Lub zog ntawm lub arc nws tus kheej yog siv los ua cov khoom siv roj hauv lub arc chamber tsim cov roj kom tshuab tawm lub arc. Nws cov qauv yog qhov yooj yim thiab haum rau cov khoom ntawm 35 kV thiab hauv qab no.
② Compressed gas high-voltage load hloov: Cov roj compressed ntawm lub piston yog siv los tshuab tawm lub arc thaum lub sij hawm tawg. Nws cov qauv kuj tseem yooj yim thiab haum rau cov khoom ntawm 35 kV thiab hauv qab no.
③ Compressed cua high-voltage load hloov: Lub arc yog tshuab tawm los ntawm compressed cua, uas tuaj yeem tawg tam sim no loj. Nws cov qauv yog qhov nyuaj thiab haum rau cov khoom ntawm 60 kV thiab siab dua.
④ SF6 high-voltage load hloov: Lub arc yog extinguished los ntawm SF6 roj. Nws txoj kev tawg tam sim no loj thiab nws txoj kev tawg tam sim no ua tau zoo, tab sis nws cov qauv yog qhov nyuaj thiab haum rau cov khoom ntawm 35 kV thiab siab dua.
⑤ Roj-immersed high-voltage load hloov: Lub zog ntawm lub arc nws tus kheej yog siv los 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 qhov hnyav yog qhov loj thiab haum 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 rau tua arc, muaj hluav taws xob lub neej ntev, tus nqi siab, thiab yog tsim rau cov khoom ntawm 220 kV thiab hauv qab no.

2.1.2 Lub hauv paus ntsiab lus ua haujlwm
Lub hauv paus ntsiab lus ua haujlwm ntawm high voltage load hloov yog zoo ib yam li cov Circuit Court breaker. Feem ntau, nws yog nruab nrog ib tug yooj yim arc extinguishing ntaus ntawv, tab sis nws cov qauv yog kuj yooj yim. Daim duab qhia tau hais tias compressed cua hom high voltage load hloov, thiab nws cov txheej txheem ua hauj lwm yog: thaum qhib, nyob rau hauv qhov kev txiav txim ntawm lub caij nplooj ntoos hlav qhib, lub ntsiab ncej rotates clockwise, ntawm ib sab tes, lub piston txav mus los ntawm lub crank slider mechanism. compress cov pa; Ntawm qhov tod tes, los ntawm kev sib kis tau tsim los ntawm ob pawg ntawm plaub-bar mechanisms, lub ntsiab hloov riam yog qhib ua ntej, thiab tom qab ntawd lub arc extinguishing riam raug thawb kom qhib lub arc tiv tauj, thiab cov cua compressed hauv lub tog raj kheej tawm. lub arc los ntawm lub nozzle. Thaum kaw, los ntawm lub ntsiab ncej thiab kis tau tus mob, lub ntsiab hloov riam thiab arc extinguishing riam tig clockwise nyob rau tib lub sij hawm, thiab arc tiv tauj yog kaw ua ntej; lub ntsiab ncej txuas ntxiv tig, kom lub ntsiab tiv tauj raug kaw tom qab. Thaum lub sijhawm kaw, lub caij nplooj ntoos hlav qhib khaws lub zog tib lub sijhawm. Txij li thaum lub load hloov tsis tuaj yeem tawg qhov luv-circuit tam sim no, nws yog feem ntau siv ua ke nrog rau tam sim no-txheej high-voltage fuse. Qhov kev txwv tam sim no ntawm cov fuse tam sim no tuaj yeem ua tsis tau tsuas yog ua tiav txoj haujlwm ntawm kev rhuav tshem lub voj voog, tab sis kuj txo cov cua sov thiab lub zog hluav taws xob los ntawm qhov luv luv tam sim no.

2.2 Tsawg-voltage load hloov
Tsawg-voltage load keyboards feem ntau muab faib ua pawg hauv qab no: riam hloov, sib xyaw ua ke thiab cov keyboards sib xyaw.
2.2.1 Riam hloov: Cov riam hloov yog qhov yooj yim tshaj plaws thiab feem ntau siv cov khoom siv hluav taws xob hauv qhov hloov hluav taws xob tsawg. Nws yog feem ntau siv nyob rau hauv lub teeb pom kev zoo circuits thiab tswj circuits uas tsis nquag pib. Nws tsuas yog plays lub luag hauj lwm ntawm switching on thiab off thiab cais lub Circuit Court. Cov riam hloov cov qauv muaj xws li roj hmab-npog riam keyboards, hlau-plhaub keyboards thiab fuse-type keyboards, uas yog haum rau txawv Circuit Court yuav tsum tau.
2.2.2 Combination switch: Cov kev sib txuas ua ke kuj hu ua hloov pauv hloov. Nws muaj qhov zoo seismic tsis kam thiab ua haujlwm yooj yim, tab sis muaj peev xwm hloov qis thiab tsis muaj kev tiv thaiv overload thiab tiv thaiv luv luv. Cov qauv kev sib txuas ua ke muaj xws li HZ5 series thiab HZ10 series, uas yog siv los txuas lossis txiav cov circuits thiab tsim nyog rau pem hauv ntej thiab thim rov qab tswj ntawm lub zog me me thiab lwm yam kev tswj xyuas Circuit Court.
2.2.3 Compound hloov: Cov kev hloov pauv sib txuas ua ke cov yam ntxwv ntawm kev hloov riam thiab kev sib txuas ua ke, muaj kev ua haujlwm zoo arc extinguishing thiab ua haujlwm yooj yim, thiab tsim nyog rau ntau yam hluav taws xob hluav taws xob hluav taws xob hluav taws xob hluav taws xob thiab cov khoom siv hluav taws xob. Nws cov qauv muaj xws li cov plooj (porcelain base), lub qhov (socket) zoo li qub, lub davhlau ya nyob twg tuaj, lub davhlau ya nyob twg tawm, kev sib cuag riam, porcelain kov (kov), fuse thiab lwm yam khoom. Cov kev faib hluav taws xob qis qis no muaj lawv tus kheej cov yam ntxwv thiab tsim nyog rau cov kev cai sib txawv thiab cov xwm txheej, ua kom muaj kev nyab xeeb thiab ruaj khov ntawm lub zog hluav taws xob. cov

2.3 Tsawg-voltage load hloov tseem hu ua hloov fuse pawg. Nws yog tsim rau manually switching on thiab off loaded circuits nyob rau hauv AC zog zaus circuits infrequently; nws kuj tseem siv tau rau overload thiab luv-circuit tiv thaiv kab. Lub Circuit Court yog switched on thiab off los ntawm kev sib cuag riam, thiab lub overload thiab luv-circuit tiv thaiv yog ua tiav los ntawm lub fuse. Roj hmab-npog riam hloov thiab hlau-plhaub hloov siv ua ntej xyoo 1970 yog ob qho tib si qis-voltage load switches. Kev sib cuag qhib thiab kaw ceev ntawm lub peev xwm me me qis-voltage load keyboards yog cuam tshuam nrog kev ua haujlwm ceev. Kev khiav hauj lwm mechanism ntawm qhov qis-voltage load hloov nrog lub peev xwm loj dua siv lub caij nplooj ntoos hlav lub zog khaws cia txoj cai. Qhov qhib thiab kaw ceev tsis muaj dab tsi cuam tshuam nrog kev ceev ntawm kev tuav haujlwm. Cov qauv no kuj yooj yim thiab yog txawm peem rau nrog ib tug txhim khu kev qha mechanical interlocking ntaus ntawv. Lub qhov hluav taws xob tsis tuaj yeem raug kaw tom qab lub hau qhib, thiab lub hau npog tsis tuaj yeem qhib tom qab lub qhov hluav taws xob kaw, uas tuaj yeem ua kom muaj kev nyab xeeb ntawm kev ua haujlwm.