Qhov nruab nrab hauv av, raws li ib qho ntawm cov thev naus laus zis tseem ceeb ntawm lub tshuab hluav taws xob, ua rau muaj kev cuam tshuam rau kev ua haujlwm ruaj khov, kev ua txhaum kev muaj peev xwm, thiab cov khoom siv hluav taws xob ntawm cov kab hluav taws xob. Cov thev naus laus zis no, los ntawm kev sib txuas hluav taws xob ntawm qhov nruab nrab ntawm qhov nruab nrab thiab lub ntiaj teb, tsim cov txheej txheem - mus rau - hauv av siv, tsim cov yam ntxwv tshwj xeeb ntawm electromagnetic thiab tswj logic, qhia txog qhov sib txawv ntawm qhov zoo ntawm cov ntawv thov sib txawv.
Los ntawm cov yam ntxwv ntawm hluav taws xob kev xav, lub ntsiab feature ntawm nruab nrab grounding yog nws txhaum cai tam sim no muaj peev xwm. Cov kev siv hauv av zoo (xws li kev siv av ncaj qha thiab qis- tsis kam grounding), nrog rau lawv txoj kev qis -impedance, tuaj yeem tso cai rau ib qho - theem av txhaum tam sim no mus txog ntau txhiab amperes, muab lub teeb liab meej rau kev tiv thaiv relay thiab ua tiav millisecond - theem kev sib cais. Txoj kev siv av tsis zoo (xws li tsis muaj av lossis hauv av los ntawm kev siv hluav taws xob arc), los ntawm cov impedance siab lossis inductive them nyiaj, txwv qhov txhaum tam sim no rau ntau txog kaum tawm amperes, tiv thaiv kev ua txhaum ib ntus los ntawm kev hloov mus rau hauv hluav taws xob tas mus li, tshwj xeeb tshaj yog tsim rau siab -kev tiv thaiv grounding scenarios nyob rau hauv kev faib network. Qhov "adjustable tam sim no theem" tus yam ntxwv tso cai rau grounding thev naus laus zis los ua kom haum raws li qhov yuav tsum tau ua txhaum cai ntawm cov tshuab sib txawv.
Thib ob, nws kuj muaj cov yam ntxwv ntawm kev tiv thaiv overvoltage. Thaum ib qho - theem hauv av txhaum tshwm sim hauv qhov system, qhov hluav taws xob ntawm cov theem tsis muaj av yuav nce mus rau cov kab hluav taws xob, uas ua rau muaj kev puas tsuaj los ntawm hluav taws xob. Qhov nruab nrab hauv av txwv tsis pub dhau lub sijhawm dhau los ntawm cov khoom siv hluav taws xob tsim hluav taws xob los ntawm kev hloov pauv lub zog yuam kev thiab ntsuas qhov peb -theem muaj peev xwm. Piv txwv li, grounding ntawm arc suppression coil siv tau inductive tam sim no los offset capacitive tam sim no, txhawb arc extinction thiab txo qis arc reignition overvoltage; direct grounding, ntawm qhov tod tes, sai smooths muaj peev xwm hloov tau los ntawm muaj zog tawm tam sim no. Ob txoj kev txhim kho lub cev xob laim tuaj yeem muaj peev xwm los ntawm qhov ntev ntawm "suppressing excitation" thiab "sabsorption sai," feem.
Tsis tas li ntawd, muaj kev sib koom ua ke ntawm kev tiv thaiv thiab kev ua haujlwm. Txoj kev hauv av ncaj qha cuam tshuam rau kev xaiv thiab kev nkag siab ntawm cov cuab yeej tiv thaiv: cov txheej txheem hauv av tau txais txiaj ntsig zoo nyob ntawm cov txheej txheem amplitude tam sim no thiab tsim nyog rau kev teeb tsa kev tiv thaiv overcurrent instantaneous; uas tsis yog- cov txheej txheem hauv av zoo yuav tsum xav txog ntau qhov ntev xws li xoom- qhov sib npaug ntawm qhov hluav taws xob thiab cov khoom sib haum xeeb los tsav kev txhim kho cov kev tiv thaiv kev txawj ntse. Nyob rau tib lub sijhawm, kev siv tshuab hauv av kuj tseem cuam tshuam nrog kev ntseeg siab ntawm lub zog siv hluav taws xob- tsis muaj av lossis arc suppression coil grounding tuaj yeem txo qhov zaus ntawm lub zog hluav taws xob, thaum qis- tsis kam grounding, txawm tias nce qhov tshwm sim ntawm tripping, tuaj yeem txo qhov kev pheej hmoo ntawm cov cuab yeej puas tsuaj, cuam tshuam txog kev ntsuas "kev nyab xeeb thiab rov qab."
Tsis tas li ntawd, cov cuab yeej siv hauv av nruab nrab yog tus cwj pwm los ntawm nws qhov kev hloov pauv tau zoo rau ntau yam xwm txheej. Tau ntsib nrog cov kev cov nyom tshiab xws li bidirectional lub zog khiav thiab kev sib haum xeeb cuam tshuam los ntawm kev sib koom ua ke ntawm cov khoom siv hluav taws xob tshiab rau hauv daim phiaj, cov khoom siv hauv av tuaj yeem ua kom lub cev muaj zog ruaj khov los ntawm kev ua kom zoo dua qub (xws li kho cov nyiaj them poob haujlwm ntawm arc suppression coil thiab tus nqi tsis kam) lossis kev taw qhia txog kev tswj xyuas ntse (xws li hloov pauv hloov thiab kev ntsuas kev ua txhaum cai). Qhov kev hloov pauv zoo li no ua rau nws yog ib qho ntawm cov thev naus laus zis uas txhawb kev hloov pauv hloov pauv ntawm cov tshuab hluav taws xob tshiab.
Nyob rau hauv cov ntsiab lus, nruab nrab grounding technology, nrog rau nws cov yam ntxwv tseem ceeb ntawm kev tswj tam sim no, overvoltage suppression, kev tiv thaiv kev sib koom tes, thiab scenario adaptability, tsis tsuas yog tiv thaiv kev ruaj ntseg hauv paus ntawm ib txwm hwj chim daim phiaj tab sis kuj muab kev txhawb nqa tseem ceeb rau txoj kev loj hlob ntawm lub zog tshiab. Hauv -Kev tshawb nrhiav qhov tob ntawm nws cov yam ntxwv kev ua haujlwm yog qhov tseem ceeb rau kev txhawb nqa kev nce qib ntawm lub zog hluav taws xob mus rau kev ntseeg siab dua.
