TusVLF Cable TesterNyob rau hauv Wuhan UHV tuaj yeem pab cov neeg ua haujlwm ua haujlwm ntau lub zog ua ntau yam kev ntsuas hluav taws xob ntau dua.
Rau feem ntau nruab nrab - voltage cables thiab cov khoom siv loj heev (VLF) Kev kuaj mob tuaj yeem hloov cov DC FRANTING thiab yog txoj kev pom zoo. Txawm li cas los xij, hauv qee cov ntawv thov tshwj xeeb thiab rau siab - voltage khoom, DC tiv thaiv tus nqi tseem tuav tus nqi tsis muaj nqi.
Cov hauv paus ntsiab lus ntawm ob qho kev ntsuam xyuas
1.DC wallstand kuaj
Lub hauv paus ntsiab lus: Siv daim DC siab ntau, ntau dua li cov cuab yeej siv hluav taws xob, rau cov khoom siv hauv kev kuaj xyuas yog tias cov rwb thaiv tsev tuaj yeem tiv thaiv nws tsis tau tawg.
Cov yam ntxwv: Vim tias nws yog DC, tam sim no yog txiav txim siab tsuas yog los ntawm kev xau dej tam sim no ntawm cov khoom rwb thaiv tsev. Qhov no yuav tsum tau kuaj cov cuab yeej siv nrog cov peev txheej me dua, ua rau nws sib zog dua thiab ntau lub chaw. Txawm li cas los xij, lub tshuab hluav taws xob faib nyob ntawm cov ntaub ntawv tiv taus, uas txawv ntawm qhov tseeb AC kev faib khoom yog nyob ntawm permittivity).
2.Very tsawg zaus (VLF) Kev Ntsuas (Feem Ntau 0.1 Hz)
Lub hauv paus ntsiab lus: siv lub zog tsawg heev (0.1 hz lossis 0.05 hz) ac siab voltage rau cov khoom siv. Lub ncov voltage yog sib npaug rau AC wallage voltage tus nqi ntawm lub zog zaus (50/60 hz).
Cov yam ntxwv: nws simulates lub ac voltage mob, yog li hluav taws xob teb kev faib tawm los ze zog rau lub xeev ua haujlwm tiag tiag. Lub caij no, vim qhov muaj peev xwm ntsuas tau tsawg heev, cov cuab yeej kuaj sim uas tsim nyog yog ntau dua li ntau zaus muaj zog zaus.
Vim li cas VLF feem ntau zoo dua thiab hloov DC kuaj?
Qhov teeb meem loj tshaj plaws nrog DC tiv thaiv DC yog tias nws tuaj yeem muaj kev puas tsuaj rwb thaiv tsev cov ntaub ntawv xws li cov kab ke sib xyaw tsis xws luag:
1.SPACE Chase:Raws li DC cov hluav taws xob ntau, cov nqi sib tw tuaj yeem sib sau rau hauv cov khoom siv rwb thaiv tsev. Tom qab kuaj, cov nqi no tsis cuam tshuam tam sim ntawd. Thaum cov khoom siv? Rov-}} DC teb muaj peev xwm superbose actigle actigenties ac teb, muaj peev xwm tsim kev ntxhov siab ntau ntawm cov ntsiab lus tsis muaj zog. Qhov no tuaj yeem ua rau "zais kev puas tsuaj" rau cov rwb thaiv tsev, qee zaum ua rau tsis them sai sai tom qab rov qab los pabcuam.
2.Qhov hluav taws xob teb faib:Rau multi - txheej lossis tsis - Cov Hluav Taws Xob Hluav Taws Xob Cov kev faib tawm no tuaj yeem sib txawv kiag li, txhais tau tias DC qhov kev kuaj yuav tsis paub meej lub rwb thaiv tsev kev ua haujlwm nyob rau hauv kev ua haujlwm tiag tiag.
3.Diffultey pom qee yam tsis xws luag:DC kev sim tsis zoo ntawm kev tshawb xyuas cov kev laus me me hauv XLPE cable zoo li "dej ntoo" thiab "ntoo hluav taws xob." Qhov kev sim hloov ntawm VLF ntau dua kev ntxhov siab cov kev tsis xws, pab qhia lawv.
Yog li ntawd, rau niaj hnub nruab nrab - voltage (piv txwv li cov qauv siv)
Cov xwm txheej uas DC FREALT SECTINGS tseem yog irreplaceable
Txawm hais tias muaj qhov zoo ntawm VLF, DC tiv thaiv kev sim tseem cuam tshuam hauv cov chaw hauv qab no:
1.Qhov thiab ntxiv -} cov khoom siv hluav taws xob siab:Rau cov cuab yeej xws li transformers thiab siab - Cov Rwb Thaiv Tsev Circuit Court, feem ntau hu ua DC lead ua kev ntsuas (feem ntau hu ua DC Nws zoo kuaj pom cov tsis xws luag.
2.oil {- impregnated ntawv -}} insulated clesulated cables:Rau cov roj roj tsoos -} ntawv -}} Puas yog kev tsim txom cov qauv rwb thaiv tsev.
3. Tsis pub siv rwb thaiv tsev rwb thaiv tsev)DC Kev Tshuaj Ntsuam Xyuas muaj ib txoj kev ruaj khov rau ntsuas rwb thaiv tsev tsis kam, tseem ceeb txuas ntxiv ntawm MEGOHMMETHER LICE.
4.reafters ntawm qee yam qauv:Qee cov khoom siv qub dua lossis cov qauv kev lag luam tshwj xeeb tseem yuav tau muab kev siv DC tiv thaiv DC tiv thaiv DC.