High-voltage switchgear muaj xws li high-voltage incoming line txees, PT metering cabinets, surge arresters, bus tie bins, transformer cabinets, outgoing line txee, thiab capacitor them nyiaj txee. Cov khoom tseem ceeb muaj xws li: siab -voltage circuit breakers (nqus / SF6, thiab lwm yam), voltage transformers, tam sim no transformers, surge arresters, cais switches, capacitors, hluav taws xob meters, ntau yam kev tiv thaiv relays, thiab lwm yam.
Tsawg-voltage switchgear units muaj cais cov khoom ua haujlwm, categorized li functional unit compartments, busbar compartments, thiab cable compartments (GCS type low-voltage switchgear). Txhua compartment ua haujlwm ntawm nws tus kheej.
High-voltage switchgear feem ntau muaj cov khoom sib cais, cov khoom xa tuaj, cov khoom ntsuas ntsuas, cov khoom siv busbar, thiab cov kab tawm sab nraud. Cov khoom cais tawm thiab cov kab nkag nkag yog siv los txiav lub zog tuaj. Busbar khoom txee, tseem hu ua PT txee lossis chaw nres tsheb transformer txee, muab lub zog ua haujlwm. Metering txee hauv tsev hluav taws xob ntsuas hluav taws xob rau kev them nqi, thiab cov kab hluav taws xob sab nraud muab hluav taws xob rau ntau yam hloov pauv.
Tam sim no, siab- cov phiaj xwm hluav taws xob faib hluav taws xob feem ntau tsis siv cov khoom them nyiaj; lawv siv tsawg-voltage them xwb. Tsawg- cov khoom siv hluav taws xob muaj xws li cov kab nkag nkag, cov kab tawm sab nraud, thiab cov khoom siv hluav taws xob rov ua haujlwm. Cov kab tawm sab nraud, uas yog cov tub rau khoom uas koj tau hais, tuaj hauv GCK, GCS, thiab MNS hom. Txhua lub tub rau khoom yog ib qho chaw tawm mus, thiab ib lub tub rau khoom feem ntau muab ib txoj kab tawm. Kom paub seb leej twg txhua tus tub rau khoom siv, kos daim ntawv lo ntawm lub tub rau khoom; daim ntawv lo feem ntau qhia lub npe load.
Kev ua haujlwm ntawm cov khoom siv hluav taws xob siab thiab qis qis feem ntau yog plaub npaug: hloov, ntsuas, tswj, thiab faib. Kuv tsis paub meej tias koj txhais li cas los ntawm "lub roj teeb txee." Feem ntau, nws yuav tsum yog DC fais fab mov vaj huam sib luag nrog lub txhab nyiaj roj teeb, nws txoj haujlwm yog los hloov AC lub zog los ntawm lub tshuab hloov pauv lossis qis-voltage txee rau hauv DC lub zog ua haujlwm rau lub siab -voltage txee.