Yav dhau los, peb tau piav qhia txog txoj kev ntsuas tam sim no ntawm AC zog ntsuas:Kev Txhais Lus Ntawm Kev Ntsuas Tam Sim No Ntawm Lub Zog Meter: Qhov Sib Txawv Ntawm 5(60)A Thiab 0.25-0.5(60)A Thiab Vim Li Cas
Cov ntsiab lus tseem ceeb ntawm kev pib tam sim no thiab calibration tam sim no
Hauv thaj teb ntawmhluav taws xob ntsuas hluav taws xobKev ntsuas, feem ntau hais lus, qhov pib tam sim no ntawm lub ntsuas hluav taws xob yog hais txog tus nqi tam sim no dhau los ntawm Circuit Court thaum lub ntsuas hluav taws xob pib ntsuas. Qhov kev ntsuas no cuam tshuam ncaj qha rau lub ntsuas hluav taws xob hluav taws xob lub peev xwm los ntsuas qhov me me tam sim no, tshwj xeeb tshaj yog rau kev saib xyuas lub zog me me ntawm ntau yam khoom siv standby hauv tsev neeg niaj hnub no.
Lwm qhov tseem ceeb parameter ze ze rau qhov pib tam sim no yog calibration tam sim no (tseem hu ua tam sim no yooj yim, cim Ib). Nws yog tus nqi siv tam sim no rau kev txiav txim siab cov yam ntxwv ntawm lub ntsuas hluav taws xob hluav taws xob thiab ua lub hauv paus rau kev suav cov ntsuas ntsuas ntawm lub ntsuas hluav taws xob. Nyob rau hauv cov qauv qub, lub ntsuas hluav taws xob hluav taws xob feem ntau tau cim tus nqi tam sim no xws li "5 (60) A", qhov twg tus nqi ua ntej lub bracket yog qhov ntsuas tam sim no.
Qhov piv ntawm qhov pib tam sim no rau kev tawg tam sim no nyob rau hauv cov qib sib txawv
Raws li lub teb chaws tus qauv GB / T 17215.321-2021, qhov piv ntawm qhov pib tam sim no rau kev tawg tam sim no rau hluav taws xob ntsuas hluav taws xob ntawm cov qib sib txawv tau qhia meej meej.
Chav Kawm 1.0 (ie Class B) AC hluav taws xob ntsuas hluav taws xob txais yuav lub teb chaws tus qauv cim tshiab: 0.25-0.5 (60) A, qhov twg 0.5 yog Itr, sawv cev "tawg tam sim no". Nws tuaj yeem suav tias pib tam sim no=0.04Itr=0.04*0.5A=0.02A
Daim ntawv thov tseem ceeb ntawm kev pib tam sim no
Kev teeb tsa ntawm qhov pib tam sim no muaj qhov cuam tshuam tseem ceeb ntawm kev siv cov ntsuas hluav taws xob tiag tiag. Ua ib qho piv txwv ntawm kev siv hluav taws xob hauv tsev ua piv txwv: Chav Kawm 1 (Class B) ib zaug -theem lub zog ntsuas nrog qhov tshwj xeeb ntawm 5 (60) A muaj qhov pib tam sim no ntawm 0.004 × 5A=0.02A, thiab tus nqi hloov pauv yog 0.02A × 220V=4.4W ({1} xam ntsuas 1} tam sim no). Qhov no txhais tau hais tias thaum tag nrho lub zog ntawm cov khoom siv standby nyob rau hauv tsev neeg Circuit Court tshaj 4.4W, lub 'meter' yuav pib ntsuas. Qhov no kuj yog vim li cas lub 'meter' tseem tseem yuav txav mus qeeb txawm tias cov khoom siv hauv tsev tsis tau qhib - qhov suav ntawm kev siv hluav taws xob standby ntawm ntau yam khoom siv yuav tau tshaj qhov pib tam sim no ntawm lub ntsuas hluav taws xob. Yog li ntawd, kev nkag siab lub tswv yim ntawm kev pib tam sim no muaj qhov tseem ceeb hauv kev taw qhia rau cov neeg siv kom txuag hluav taws xob thiab txo qis kev siv hluav taws xob.
Qhov kev sib raug zoo ntawm qhov tsawg kawg nkaus tam sim no thiab breakover tam sim no nyob rau hauv ntau qhov tseeb
Tsis tas li ntawd raws li lub teb chaws tus qauv GB / T 17215.321-2021, qhov sib npaug sib npaug ntawm qhov tsawg kawg nkaus tam sim no thiab qhov tawg tam sim no ntawm lub ntsuas hluav taws xob hluav taws xob nrog ntau qhov tseeb.
Qib 1.0 (piv txwv li, theem B) peb -theem AC lub zog hluav taws xob ntsuas tau txais cov txheej txheem tshiab hauv lub tebchaws: 0.2-0.5 (60) A, qhov twg 0.2 yog qhov tsawg kawg nkaus tam sim no 0.2A, thiab 0.5 yog Itr, uas txhais tau tias "breakover tam sim no". Nws tuaj yeem suav tias qhov tam sim no yam tsawg kawg nkaus=0.4Itr=0.4*0.5A=0.2A
Evolution ntawm lub teb chaws cov qauv thiab kev hloov hauv cov txheej txheem cim
Nrog rau kev nce qib ntawm thev naus laus zis, txoj kev kos npe ntawm cov ntsuas hluav taws xob tam sim no kuj tseem txhim kho tas li. Thaum ntxov lub zog ntsuas feem ntau tau txais 5 (60) A cim txoj kev, thaum lub zog tshiab ntsuas tau txais 0.25-0.5 (60) A cim txoj kev.
5 (60) A yog lub cim qub, 5 yog qhov ntsuas tam sim no (los yog tam sim no yooj yim, cim Ib). Raws li lub teb chaws tus qauv GB/T 17215.321-2008 (tus qauv qub), qhov tseeb theem ntawm kev sib txuas ncaj qha AC zog ntsuas yog qib 1, pib tam sim no=0.004Ib=0.004*5A=0.02A. Txoj kev cim tshiab ncaj qha nthuav tawm qhov tsawg kawg nkaus tam sim no (0.25A) thiab qhov tawg tam sim no (0.5A), thiab siv GB / T 17215.321-2021 (tus qauv tshiab) qauv: pib tam sim no=0.04Itr=0.04*0.5A=0.02A. Qhov pib tam sim no ntawm lub ntsuas hluav taws xob AC no kuj suav nrog (cov neeg siv ceev faj yuav pom tias kev sib raug zoo ntawm calibration tam sim no thiab breakover tam sim no yog: calibration tam sim no Ib=breakover tam sim no Itr * 10). Nws kuj tseem tuaj yeem txhim kho qhov tsis pom kev pom tseeb thiab pab cov neeg siv nkag siab txog qhov ntsuas qhov ntsuas qhov tseeb hauv ntu lub teeb.
Raws li tau hais hauv kev tshuaj xyuas, raws li lub teb chaws tus qauv GB / T 17215.321-2021, tsuav yog lub ntsuas hluav taws xob tau cim nrog lub teb chaws tshiab tam sim no, xws li 0.25-0.5 (60) A, peb paub tias 0.5 yog qhov hloov tam sim no Itr, thiab peb tuaj yeem suav qhov tsawg kawg nkaus tam sim no thiab pib tam sim no.