Cov Cheebtsam tseem ceeb ntawm Switchgear: Lawv Lub Luag Haujlwm Tseem Ceeb hauv Cov Hluav Taws Xob
Switchgear yog zoo li "nerve center" ntawm lub hwj chim faib tes hauj lwm. Nws ua kom cov hluav taws xob taug kev nyab xeeb thiab ua tau zoo hla ntau qhov hluav taws xob sib txawv-los ntawm nruab nrab-voltage 11 kv ring main units mus rau siab -voltage 34.5 kv switchgear, thiab cov qauv tshwj xeeb xws li XGN15-12 hloov txee. Cov tshuab no ua haujlwm zoo tsuas yog thaum lawv cov khoom tseem ceeb ua haujlwm ua ke. Txhua feem muaj ib txoj haujlwm tshwj xeeb los tiv thaiv thiab tswj lub zog khiav. Hauv qab no yog qhov yooj yim tawg ntawm cov khoom tseem ceeb no thiab lawv ua haujlwm li cas hauv cov khoom siv xws li XGN15-12 hloov txee, 34.5 kv switchgear, thiab 11 kv lub nplhaib tseem ceeb.
1. Circuit Breaker: Qhov "Tswj Xwm Ceev" rau kev tiv thaiv txhaum
Lub Circuit Court breaker yog ib feem tseem ceeb ntawm ib qho switchgear-txawm nws yog ib qho me me 11 kv lub nplhaib tseem ceeb los yog hnyav -duty 34.5 kv switchgear. Nws txoj haujlwm tseem ceeb yog txiav tawm sai sai yog tias muaj qhov luv luv lossis tam sim no ntau dhau (overcurrent). Qhov no txwv tsis pub kev puas tsuaj los ntawm kev sib kis mus rau transformers los yog lub hauv paus fais fab. Hauv kev siv ib txwm muaj, nws kuj ua raws li kev hloov pauv tsis tu ncua rau kev tswj lub zog, thiab tuaj yeem ua haujlwm hauv hluav taws xob los ntawm qhov deb. Piv txwv li, XGN15-12 hloov txee tuaj yeem siv lub tshuab nqus tsev lossis SF₆ Circuit Court breakers kom haum rau 12kV kev xav tau kev faib tawm. 34.5 kv switchgear feem ntau yog siv lub peev xwm siab SF₆ breakers kom zoo dua nres hluav taws xob arcs. Txawm tias 11 kv lub nplhaib tseem ceeb muaj cov khoom siv hluav taws xob me me los tswj cov khoom thauj thiab cais cov kev ua yuam kev kom raug.Cov khoom muaj nyob rau ntawm qhov txuas hauv qab no:
2. Fuse: Kev tiv thaiv overcurrent pheej yig
Fuses muab pheej yig tab sis txhim khu kev qha tiv thaiv luv luv Circuit Court thiab overcurrent. Lawv yog ib qho tseem ceeb hauv ob qho tib si XGN15-12 hloov txee thiab 11 kv lub nplhaib tseem ceeb. Thaum tam sim no tau siab dhau lawm thiab nyob twj ywm li ntawd ib pliag, lub fuse sab hauv cov hlau melts. Qhov no rhuav tshem lub voj voog thiab tiv thaiv cov khoom siv hauv qab. Hauv XGN15-12 hloov txee, fuses feem ntau ua haujlwm nrog cov khoom siv thauj khoom (hu ua "fuse-load ua ke") los cuam tshuam rau qhov tsis ua txhaum hauv milliseconds-zoo rau kev tiv thaiv transformers. 11 kv lub nplhaib tseem ceeb hauv thaj chaw nyob siv fuses los tiv thaiv kev hloov pauv hloov pauv. Rau cov chaw ua si, 34.5 kv switchgear siv fuses nrog siab tawg peev xwm los tiv thaiv kab feeder.
3. Disconnect Switch: Kev nyab xeeb rau kev tu
Disconnect keyboards yog qhov tseem ceeb rau kev nyab xeeb. Lawv tsim qhov pom tseeb, pom qhov sib txawv kom cais cov cuab yeej ua haujlwm los ntawm cov kab hluav taws xob nyob. Qhov no yog qhov yuav tsum tau-muaj rau 34.5 kv switchgear thiab XGN15-12 hloov txee. Tsis zoo li Circuit Court breakers, lawv tsis tuaj yeem nres hluav taws xob arcs. Yog li lawv yuav tsum tsuas yog siv thaum lub Circuit Court twb tawm lawm. Nyob rau hauv 34.5 kv switchgear, disconnect keyboards ua hauj lwm nrog Circuit Court breakers los kho qhov system thaiv thaum lub sij hawm daim phiaj tu. XGN15-12 hloov txee muaj peb-txoj hauj lwm load keyboards uas ua ke disconnect, load tswj, thiab grounding functions. Qhov no ua rau kev ua haujlwm yooj yim dua thiab ua tau raws li "tsib-tiv thaiv" cov cai kev nyab xeeb. Txawm hais tias 11 kv lub nplhaib tseem ceeb muaj phau ntawv txiav tawm cov keyboards kom cov neeg ua haujlwm nyab xeeb xyuas thiab kho cov kab txuas thiab cov hloov pauv.
4. Voltage Transformers (VT) thiab Tam sim no Transformers (CT): Cov "Signal Translators"
VTs thiab CTs zoo li "qhov muag thiab pob ntseg" ntawm switchgear. Lawv tau siv nyob rau hauv XGN15-12 hloov txee, 34.5 kv switchgear, thiab 11 kv lub nplhaib tseem ceeb. Cov khoom siv no hloov cov hluav taws xob siab (xws li 34.5 kV) lossis cov tam sim no loj rau hauv cov qauv qis: 100V rau VTs, thiab 5A lossis 1A rau CTs. Qhov no cia cov engineers siv cov cuab yeej ntsuas ntsuas thiab cov cuab yeej tiv thaiv. Hauv 34.5 kv switchgear, siab -precision CTs xa cov ntaub ntawv tam sim no mus rau ntse tiv thaiv relays. Cov relays sai sai pom qhov yuam kev. XGN15-12 hloov txee tuaj yeem muaj 0-3 CTs rau ib lub voj voog los pab nrog kev ntsuas thiab tiv thaiv overcurrent. 11 kv lub nplhaib tseem ceeb siv VTs los saib xyuas cov tsheb npav voltage, ua kom cov tsev lag luam tau txais lub zog ruaj khov. Qhov tseem ceeb tshaj plaws, VTs thiab CTs cais cov tshuab hluav taws xob siab los ntawm kev tswj hluav taws xob qis-ua rau tib neeg thiab khoom siv nyab xeeb.
5. Surge Arresters: Tiv thaiv tiv thaiv overvoltage
Surge arresters shield switchgear los ntawm qhov tam sim no voltage spikes tshwm sim los ntawm xob laim lossis hloov ua haujlwm. Lawv tseem ceeb heev rau 34.5 kv switchgear thiab XGN15-12 hloov cov khoom siv ze ntawm ntug dej hiav txwv. Siv cov resistors tshwj xeeb los yog tawm qhov khoob, lawv nqus thiab tso tawm lub zog ntxiv los ntawm qhov hluav taws xob hluav taws xob. Qhov no ua kom cov voltages nyob rau theem kev nyab xeeb. Nyob rau hauv 34.5 kv switchgear nyob rau hauv qhib substations, hlau oxide ntes (MOAs) nres kev puas tsuaj los ntawm hluav taws xob hluav taws xob. XGN15-12 hloov txee muaj peb tus neeg ntes nyob rau hauv nws cov kab hluav taws xob los tiv thaiv qhov hluav taws xob hluav taws xob thaum lub sijhawm hloov pauv. Txawm tias 11 kv lub nplhaib tseem ceeb hauv cov cheeb tsam hauv nroog siv cov neeg ntes los tiv thaiv qhov chaw rhiab zoo li qhov hluav taws xob hloov hluav taws xob los ntawm kev puas tsuaj los ntawm hluav taws xob.
Yog vim li cas Component Teamwork Matters rau txawv Switchgear
Txawm hais tias nws yog modular XGN15-12 hloov txee, siab-voltage 34.5 kv switchgear, lossis kev faib tawm- tsom 11 kv lub nplhaib tseem ceeb- cov khoom ua haujlwm ua ke yog qhov ua rau lub kaw lus ntseeg tau. Piv txwv li, XGN15-12 hloov txee lub kaw SF₆ thauj khoom hloov, fuses, thiab CTs ua haujlwm ua pab pawg. Qhov no cia nws khiav yam tsis muaj kev saib xyuas ntau, txawm tias nyob rau hauv ib puag ncig nyuaj. 34.5 kv switchgear muab cov kev sib txuas ntawm Circuit Court breakers, ntes, thiab kev tiv thaiv ntse los lis daim phiaj - qib faults. 11 kv lub nplhaib tseem ceeb siv cov hloov pauv, fuses, thiab VTs kom "loop" fais fab mov. Qhov no txhais tau hais tias yog ib txoj kab tsis ua haujlwm, lub zog tuaj yeem los ntawm lwm qhov-txhim hluav taws xob tsawg. Paub tias cov khoom siv no ua haujlwm li cas pab koj xaiv qhov zoo switchgear thiab ua kom lub zog ua haujlwm ruaj khov mus ntev.