Lub hom phiaj tseem ceeb ntawm kev siv hloov pauv tam sim no hauv kev hloov pauv thiab tiv thaiv cov hluav taws xob muaj kev nyab xeeb thiab ua kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm thiab khoom siv. Nws cov haujlwm tshwj xeeb tuaj yeem yog sau ua ke raws li hauv qab no:
1.Cov kev hloov dua siab tshiab: hloov kho kev ntsuas thiab cov khoom siv tiv thaiv
Hloov siab tam sim no mus rau qis tam sim no
Kev hloov pauv tuaj yeem muaj ib qho tam sim no ntawm ob peb txhiab amperes (piv txwv li, xws li cov khoom siv hluav taws xob (xws li kev sib tw) feem ntau muaj cov tswv yim sib txawv ntawm 5A lossis 1a. Lub indformer Inectsy Inisects Incompagnetic induction hauv paus ntsiab lus hluav taws xob thiab hloov tau cov kev ua haujlwm siab tam sim no mus rau qhov tsawg kawg nkaus. Piv txwv li, AA 500: 5 piv cov kev hloov pauv 500A mus rau 5A, tso cai rau lub cuab yeej los ua haujlwm kom nyab xeeb thiab raug.
2. tsaus muag thiab lag luam
Txheeb xyuas cov thib ob tam sim no rau ib qho 5A lossis 1a yooj yim tus qauv tsim ntawm cov twj thiab cov khoom tiv thaiv thiab txo cov khoom siv tsim khoom. Tsis tas li ntawd, thicker xaim yuav siv tau rau cov khoom siv kis tau tam sim no, txo cov khoom siv thiab kev txhawb nqa kev nyuaj. Piv txwv li, tus ntoo khaub lig-} ntu ntawm cov khoom sib kis tau 500, muaj ntau dua li cov nqi sib kis tau 2. Hluav taws xob rho tawm: kom muaj kev nyab xeeb ntawm tus kheej thiab khoom siv kev nyab xeeb
Siab - voltage rho
Lub ntsej muag tseem ceeb ntawm cov hloov pauv tam sim no tau txuas nrog lub siab voltage Circuit hauv series, thiab ob lub winding yog txuas nrog ntsuas cov khoom siv thiab kev tiv thaiv. Cov khoom siv ua ntej thiab theem nrab sib cais los ntawm cov khoom siv insulating los xyuas kom meej tias cov cuab yeej ob yog cais tawm ntawm lub siab- voltage thawj system. Piv txwv li, hloov 220kv hloov, hloov pauv tam sim no tuaj yeem tiv thaiv kev puas tsuaj rau cov khoom siv tsis txaus ntseeg (xws li luv luv ntawm cov kev pheej hmoo ntawm cov tshuab hluav taws xob.
Kev tiv thaiv ntawm theem nrab - sab qhib - kev phom sij
Qhov thib ob ntawm tus hloov pauv tam sim no tsis tuaj yeem qhib. Ua li ntawd yuav tsim kom muaj ntau lub zog hluav taws xob (mus txog ntau txhiab volts) hauv cov khoom siv sib txuas ob, cov cuab yeej siv ntxiv thiab cov neeg ua haujlwm. Nyob rau hauv kev muaj tiag, qhib nyob rau hauv theem nrab winding ntawm lub transformer tam sim no ntawm kev hloov chaw tuaj yeem ua rau rwb thaiv tsev tawg thiab hluav taws. Cov kev raug xwm txheej zoo li no tuaj yeem zam los ntawm cov qauv kev ua haujlwm (piv txwv li luv, thib ob {{5 5}}, thiab lwm yam.
3. Txuas ntawm cov haujlwm: Txhawb kev tiv thaiv thiab saib xyuas
Overcurrent tiv thaiv
Cov hloov hluav taws xob tam sim no tuaj yeem soj ntsuam lub ntsej muag ncig ntawm lub sijhawm. Thaum qhov tam sim no tshaj qhov chaw pib, kev tiv thaiv cov cuab yeej ua rau lub Circuit Court breaker los ntawm cov paib hloov pauv, tiv thaiv cov cuab yeej los ntawm kev tshaj lij. Piv txwv li, ib txoj kab 10kv, yog tias tus hloov pauv tam sim no tsis txaus ntseeg (piv txwv li, 500a), kev tiv thaiv yuav txiav tawm lub zog hluav taws xob hauv 0.1 ob peb zaug los tiv thaiv cov transformer los ntawm kev kub hnyiab.
Kev tiv thaiv sib txawv
Sab hauv cov kev ua txhaum raug kuaj pom los ntawm kev sib piv cov cim hloov pauv tam sim no ntawm qhov kawg ntawm lub cuab yeej, xws li lub tsheb thauj khoom lossis tsheb npav. Piv txwv li, hauv transformer kev tiv thaiv sib txawv, yog tias qhov sib txawv ntawm cov khoom siv hloov pauv tam sim no ntawm ob tog), tus hloov pauv sab hauv tau raug cais tawm tam sim ntawd kom tiv thaiv kev puas tsuaj ntxiv.
Zog Metering thiab Thauj Khoom Ntsuas
Lub chaw hloov hluav taws xob tam sim no muab cov teeb liab raug rau cov hluav taws xob me me thiab ua kom pom tseeb tus nqi hluav taws xob muaj tseeb. Ntawm tus neeg siv sab, piv txwv li, lub ntsuas ntsuas qhov tseeb 0.2 Tam sim no hloov tuaj yeem yog ± 0.2%, txo cov nqi hluav taws xob. Tsis tas li ntawd, los ntawm kev soj ntsuam qhov tiag {{lub sij hawm tam sim no ntawm cov hloov pauv thiab cov khoom siv (cov khoom siv ua haujlwm tau zoo thiab cov cuab yeej siv lub neej txuas ntxiv.
