Kev Siv Xob Taus ntawm Kev Tos Neeg

1. Yuav tsum muab ntsia ze rau ntawm qhov chaw xa khoom hluav taws xob sab hloov Cov hlau oxide ntes (MOA) txuas nrog rau txoj hauv kev sib txig nrog cov hloov hluav taws xob thaum lub sijhawm ua haujlwm, qhov kawg kawg txuas nrog rau txoj kab, thiab qis kawg yog av. Thaum lub overvoltage tshwm sim ntawm txoj kab, lub tshuab xa khoom hluav taws xob nyob rau lub sijhawm no yuav tiv thaiv qhov peb-seem hluav taws xob tso tawm thaum lub tshuab hluav taws xob overvoltage dhau los ntawm kev ntes, cov hlau txhuas thiab cov khoom siv hauv av, uas yog hu ua cov seem hluav taws xob. Ntawm cov peb ntu ntawm overvoltage, qhov seem hluav taws xob ntawm tus neeg ntes tau cuam tshuam nrog nws qhov kev ua tau zoo, thiab nws cov nqi hluav taws xob tsis tu ncua. Qhov seem hluav taws xob ntawm cov khoom siv hluav taws xob hauv av tuaj yeem raug tshem tawm los ntawm kev sib txuas ntawm tus neeg tsav hluav taws xob hauv av mus rau cov vaj tsev faib hluav taws xob thiab tom qab ntawd txuas nws mus rau qhov cuab yeej grounding. Yuav ua li cas thiaj li txo qhov seem hluav taws xob ntawm lub hau ua qhov tseem ceeb ntawm kev tiv thaiv cov xa hluav taws xob. Lub impedance ntawm cov hlau txhuas cuam tshuam nrog rau qhov muaj ntau ntawm qhov tam sim no dhau. Ntau dua qhov zaus, qhov ua kom muaj zog ntawm cov hlau thiab ntau dua cov impedance. Nws tuaj yeem pom los ntawm U=IR uas txhawm rau txo cov seem hluav taws xob ntawm cov hlau lead, nws yog qhov tsim nyog los txo cov hlau lead tsis haum, thiab qhov ua tau los txo cov hmoov txhuas cuam tshuam ua kom luv luv ntawm MOA thiab qhov hloov hluav taws xob kom txo qis cov hlau lead impedance thiab txo qhov txhuas cov hluav taws xob poob. Tus neeg txhom tus neeg yuav tsum muab ntsia ntawm qhov taw tes ze ntawm lub tshuab xa hluav taws xob. 2. Lub sab hluav taws xob tsawg ntawm cov xa hluav taws xob hloov hluav taws xob kuj tseem yuav tsum tau nruab yog tias tsis muaj MOA rau ntawm lub tshuab hluav taws xob tsawg sab ntawm lub tshuab xa khoom hluav taws xob, thaum lub tshuab hluav taws xob sab hluav taws xob raug ntes hluav taws xob mus rau hauv av, qhov hluav taws xob poob yuav raug tsim tawm ntawm cov cuab yeej tso hluav taws xob hauv av, thiab qhov poob hluav taws xob no yuav ua rau qhov nruab nrab ntawm qhov nruab nrab ntawm cov hluav taws xob tsawg tsawg nyob rau tib lub sijhawm los ntawm kev faib cov khoom hluav taws xob. Yog li ntawd, qhov hluav taws xob tam sim no ntws hauv qhov tsawg-voltage sab winding yuav ua rau muaj qhov muaj peev xwm loj (txog 1000 kV) hauv qhov high-voltage sab winding raws li kev sib piv hloov. Qhov peev xwm no yuav tau superimposed nrog xob laim ntawm lub siab-voltage sab winding, uas ua rau nruab nrab lub taw tes muaj peev xwm ntawm lub high-voltage sab winding nce, tawg lub rwb thaiv tsev nyob ze qhov nruab nrab kis. Yog tias MOA raug teeb tsa rau ntawm qhov qis-hluav taws xob sab, thaum MOA nyob rau sab high-voltage tau tso tawm kom tsa qhov peev xwm ntawm cov khoom ntaus nqi mus rau qee yam nqi, MOA rau ntawm sab hluav taws xob tsawg pib tawm, yog li lub peev xwm sib txawv ntawm qhov hluav taws xob kawg ntawm qhov tsawg-voltage sab winding thiab nruab nrab taw tes thiab lub plhaub yog txo qis. Nws tuaj yeem tshem tawm lossis txo qhov cuam tshuam ntawm" rov qab hloov pauv" hluav taws xob muaj peev xwm. 3. Cov hlau MOA hauv av yuav tsum txuas nrog cov tsev tsim hluav taws xob faib hluav taws xob Cov hlau hluav taws xob hauv av ntawm MOA yuav tsum txuas ncaj qha rau cov tsev nyob ntawm cov tshuab hluav taws xob faib, thiab tom qab ntawd lub tsev txuas nrog lub ntiaj teb. Nws yog tsis ncaj ncees lawm los txuas rau hauv av hlau ntawm tus neeg ntes tawm ncaj qha rau lub ntiaj teb, thiab tom qab ntawd coj lwm tus hlau xaim los ntawm qhov ceg txheem ceg rau hauv pem teb mus rau lub plhaub transformer. Ntxiv rau, cov hlau xov hauv av ntawm lub ntes yuav tsum yog luv li sai tau kom txo qhov seem ntawm voltage. 4. nruj me ntsis raws li kev ntsuas tu tsis tu ncua Nquag ntsuas rwb thaiv kev tiv thaiv kev ntsuas thiab to qhov tam sim no kuaj ntawm MOA. Thaum pom cov rwb thaiv kev tiv thaiv ntawm MOA pom tau hais tias tau txo qis lossis tawg, nws yuav tsum tau hloov tam sim ntawd kom muaj kev nyab xeeb thiab noj qab haus huv ua haujlwm ntawm kev faib tawm.