Hauv siab -voltage power systems, disconnect switches yog cov cuab yeej tseem ceeb, tab sis lawv txoj haujlwm tseem ceeb heev. Lawv tsis tuaj yeem cuam tshuam cov kev thauj khoom ib txwm muaj lossis luv luv -circuit tam sim no. Lawv lub luag haujlwm tseem ceeb yog tsim kom pom huab cua- rwb thaiv tsev tawg hauv Circuit Court, thiab qhov kev so no yuav tsum muaj kev nyab xeeb txaus kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm thaum kho cov khoom siv hluav taws xob. Yog li ntawd, lawv cov installation thiab siv nyob rau hauv lub system yuav luag ib txwm xav tau kev sib koom tes nrog rau lwm yam khoom siv hluav taws xob nrog tawg peev xwm los tsim ib tug ua tiav chav tsev.
Core Partner: Circuit Breaker
Qhov no yog kev sib koom ua ke thiab tseem ceeb tshaj plaws. Lub luag haujlwm ntawm Circuit Court breaker yog qhov tseeb: nws yog lub luag haujlwm rau kev cuam tshuam tag nrho cov tam sim no hauv Circuit Court, txawm tias cov khoom siv tam sim no los yog luv luv -circuit tam sim no thaum muaj teeb meem. Peb nruab disconnect keyboards ntawm ob sab ntawm lub Circuit Court breaker, uas yog, lub hwj chim mov sab thiab lub load sab. Nws lub luag haujlwm tseem ceeb yog cais tawm tag nrho lub Circuit Court breaker hluav taws xob tom qab nws mus ncig, yog li tso cai rau kev saib xyuas kev nyab xeeb ntawm Circuit Court breaker nws tus kheej lossis cov kab thiab cov khoom nyob ib sab.
Qhov kev sib xyaw ua ke ntawm "circuit breaker + disconnect keyboards ntawm ob sab" yog qhov yooj yim module ntawm substation main wiring (xws li ib lub busbar thaiv thiab ob lub busbar thaiv). Thaum lub sijhawm ua haujlwm, kev hloov hluav taws xob sib txuas yuav tsum tau ua raws li nruj me ntsis: qhib lub Circuit Court breaker ua ntej, ces qhib lub disconnector; kaw lub disconnector ua ntej, ces kaw lub Circuit Court breaker. Tsis txhob khiav lub disconnector nyob rau hauv load.
Kev sib xyaw nrog Fuses
Hauv qee qhov 35kV thiab qis dua hluav taws xob faib hluav taws xob, tshwj xeeb tshaj yog 10kV systems, peb feem ntau siv kev lag luam thiab yooj yim ua ke - siab -voltage fuse ua ke nrog lub disconnector. Hauv qhov kev teeb tsa no, qhov siab -voltage fuse (dhau- tawm fuses lossis tam sim no ruaj khov- txwv fuses raws li piv txwv) yog lub luag haujlwm rau overload thiab luv- tiv thaiv Circuit Court, thiab tseem cuam tshuam qhov cuam tshuam tam sim no.
Lub disconnector txoj haujlwm yog tsim kom muaj kev nyab xeeb hluav taws xob cais tawm thaum lub fuse tshuab lossis xav tau hloov. Tsis tas li ntawd, tus disconnector kuj tseem tuaj yeem qhib thiab kaw cov kab hauv qab tsis muaj -load tej yam kev mob, ua rau kev hloov pauv ntawm cov khoom siv xws li cov khoom siv hluav taws xob.
Kev sib xyaw nrog Grounding Switches
Txhawm rau kom muaj kev nyab xeeb zoo thaum tu, disconnectors feem ntau yog siv ua khub nrog cov hloov hauv av, lossis ncaj qha ua ke. Thaum ib kab lossis khoom siv yuav tsum tau saib xyuas, peb thawj zaug txiav tawm qhov kev sib cais los tsim ib qho kev sib cais, thiab tom qab ntawd kaw qhov sib txuas hauv av. Qhov no tso siab tau rau cov khoom siv lossis kab ntawm kev saib xyuas sab, tso tawm cov nqi seem thiab tiv thaiv kev sib tsoo los ntawm kev ua phem rau cov neeg ua haujlwm tu.
Niaj hnub nimno siab -voltage disconnecting keyboards feem ntau koom nrog qhov hloov hauv av (piv txwv li, qhov hloov hauv av) ua ib feem tseem ceeb, tsim "peb- txoj haujlwm" tsim, suav nrog kaw, qhib, thiab hauv av. Lawv kuj tau nruab nrog txhim khu kev qha mechanical lossis hluav taws xob cuam tshuam los tiv thaiv kev ua haujlwm tsis zoo ntawm kev hloov pauv thiab hloov hauv av.
Kev koom tes nrog tam sim no Transformers thiab lwm yam khoom siv
Nyob rau hauv cov khoom nkag thiab tawm, kev sib txuas ntawm cov keyboards feem ntau tau teeb tsa ua ke nrog cov ntsuas ntsuas xws li tam sim no transformers (CTs). Hais txog kev teeb tsa ntawm lub tsheb npav -sab disconnecting hloov thiab lub Circuit Court breaker, peb txuas CT nyob rau hauv series ntawm lawv los pab txhawb kev ntsuas tam sim no thiab kev tiv thaiv ntawm Circuit Court. Lub luag haujlwm ntawm kev hloov pauv ntawm no kuj yog los muab lub ntsiab lus sib cais kom meej, tso cai rau peb tswj lossis hloov CT yam tsis muaj kev cuam tshuam rau lub tsheb npav.
Lwm Cov Kev Siv Tshwj Xeeb
Hauv ob chav busbar configurations, disconnect keyboards, ua raws li "busbar-sab disconnect keyboards," ua lub luag hauj lwm tshwj xeeb. Lawv tuaj yeem hloov ib txoj kab lossis transformer los ntawm ib lub busbar mus rau lwm qhov yam tsis muaj kev cuam tshuam lub zog. Txawm li cas los xij, qhov kev ua haujlwm no yuav tsum tau kaw lub Circuit Court breaker, nrog rau Circuit Court breaker tuav lub load tam sim no hloov.
Hauv cov tsev txhab nyiaj capacitor lossis lub cev muaj zog uas yuav tsum tau hloov mus tas li, lub tshuab nqus tsev contactors tuav cov haujlwm nquag, thaum disconnect keyboards muab kev sib cais zaum kawg thaum kho. Nyob rau hauv cov kab sib kis, disconnect keyboards ntsia ntawm ob sab ntawm kab tuaj yeem txuas lossis txiav cov kab txuas nrog cov lus txib xa tawm thaum cov kab raug tshem tawm.