Clamp meter nrhiav txoj hauv kev rau cov khoom siv hluav taws xob thiab lub zog ntsuas
Kev kuaj xyuas txoj kev
Kev txheeb xyuas cov khoom siv siab thiab cov nqi qis
(1) Siv lub ammeter digital los ntsuas lub taub hau ntawm qhov qis-voltage ntawm transformer, uas yog, tam sim no ntawm L davhlau ya nyob twg ntawm tam sim no transformer 1w1v, Iwo
(2) Tom qab ntawd ntsuas qhov thib ob lub davhlau ya nyob twg ntawm qhov tam sim no transformer, uas yog, K, lossis tam sim no 1IwIvJw ntawm K2 davhlau ya nyob twg (koj tuaj yeem xa mus rau qhov ntsuas tam sim no ntawm lub ntsuas hluav taws xob ntau lub sijhawm rau kev sib piv, thiab qhov yuam kev yuav tsum tsis pub tshaj 2 feem pua).
(3) IJIJ, INI, IwI. Ntawd yog, seb qhov tam sim no transformer-primary mus rau theem nrab piv yog zoo ib yam nrog lub magnification ntawm lub npe ntawm lub transformer tam sim no thiab daim ntawv nyeem meter.
(4) Siv lub ammeter bayonet ib txhij clamp cov xov hlau thib ob K1 thiab K2 ntawm U-theem tam sim no transformer, thiab qhov taw qhia ammeter yuav tsum yog xoom nyob rau lub sijhawm no. Yog tias nws tsis yog xoom, nws txhais tau hais tias ib qho ntawm cov xov hlau ntawm tam sim no transformer K1 lossis K2 tau tawg lawm. Lub sijhawm no, cov nqi yuav raug txo los ntawm 1/3. Txoj kev ntsuas ntawm V theem thiab W theem yog tib yam li U theem.
(5) Siv lub ammeter bayonet clamp K1 ntawm U-theem tam sim no transformer thiab K1 kab ntawm W-theem tam sim no transformer tib lub sijhawm. Lub sijhawm no, qhov taw qhia tus nqi ntawm ammeter yog tus nqi thib ob tam sim no ntawm V-theem tam sim no transformer. Nws tus nqi yog tus nqi thib ob tam sim no ntawm U theem lossis W theem. Yog tias tus nqi yog 1.73 npaug ntawm U-phase lossis W-theem, nws txhais tau hais tias theem nrab K1 lossis K2 ntawm U-phase lossis W-phase tam sim no transformer yuav tsum muaj - - tsuas yog thim rov qab. Nyob rau hauv tib txoj kev, nws tuaj yeem kuaj xyuas seb qhov kev sib txuas thib ob ntawm V-theem tam sim no hloov pauv hloov pauv.
Kev txheeb xyuas cov khoom siv hluav taws xob siab thiab cov ntsuas hluav taws xob siab
(1) Siv lub ammeter los ntsuas qhov tam sim no Lu, Iv, thiab Iwo ntawm transformer low-voltage pawg taub hau
(2) Siv cov ntaub ntawv ntsuas 1J / 25 thiab Iw / 25 los suav cov ntsuas hluav taws xob siab tam sim no ntawm lub tshuab hluav taws xob, uas yog, tam sim no thawj tam sim no ntawm lub thawv ntsuas hluav taws xob siab.
(3) Faib qhov sib piv ntawm 1J25 los ntawm qhov sib npaug ntawm qhov tam sim no transformer nyob rau hauv high-voltage metering box kom tau txais qhov thib ob tam sim no ntawm high-voltage tam sim no transformer.
(4). Qhov thib ob tam sim no ntawm cov hais saum toj no-voltage high-voltage tam sim no transformer yuav tsum sib npaug zos rau U-theem tam sim no nyob rau hauv tus nqi meter (saib rau tib theem tam sim no qhia tus nqi ntawm lub multi-function meter), thiab W-theem tam sim no tuaj yeem suav nrog tib txoj kev.
(5) Koj tuaj yeem siv lub ammeter bayonet txhawm rau txhawm rau U-theem tam sim no rau hauv meter kab K1 kom tau txais tus nqi tam sim no, muab tus nqi no los ntawm high-voltage tam sim no transformer multiplier thiab muab ntau dua los ntawm 25, uas yog, U. -phase low-voltage tam sim no nyob rau sab qis-voltage ntawm transformer siv tus nqi. Tib txoj kev tseem tuaj yeem suav cov W-theem qis-voltage tam sim no tus nqi.
(6) Siv lub bayonet ntawm lub ammeter los clamp U-theem nkag mus meter hlau K1 thiab W-theem tawm meter hlau K2 tib lub sijhawm. Yog tias tus nqi tam sim no nyob ze rau U-phase lossis W-phase, txoj hlua txuas tam sim no yog lawm. Yog tias tus nqi tam sim no yog 1.73 npaug ntawm U-theem lossis W-theem, nws txhais tau tias cov kab thib ob ntawm U-theem lossis W-phase tam sim no yuav tsum tau thim rov qab.
Xyuas nrog lub voltmeter
Cov ntaub ntawv hluav taws xob ntawm ib qho voltmeter zoo tib yam lossis multimeter tuaj yeem siv los xyuas seb qhov hluav taws xob ntawm qhov ntsuas hluav taws xob hluav taws xob yog qhov qub.
(1) Tshawb xyuas qhov tsis muaj hluav taws xob thiab tsis tshua muaj hluav taws xob tshwm sim los ntawm kev qhib Circuit Court lossis kev sib cuag tsis zoo. Feem ntau, cov tswv yim thiab cov zis tawm ntawm lub ntsuas hluav taws xob hluav taws xob raug kuaj xyuas ua ntej. Feem ntau, qhov voltage ntawm lub davhlau ya nyob twg voltage yuav tsum sib npaug zos rau sab nraud voltage. Yog tias tsis muaj qhov hluav taws xob, nws txhais tau hais tias qhov hluav taws xob yog qhib Circuit Court, lossis cov kab nkag thiab tawm ntawm lub ntsuas hluav taws xob hluav taws xob tau qhib circuited. Yog tias qhov hluav taws xob sab nraud ntawm lub ntsuas hluav taws xob siab tshaj qhov hluav taws xob hauv lub ntsuas hluav taws xob, nws yuav yog vim qhov tsis zoo ntawm lub ntsuas hluav taws xob los yog lub siab tsis kam txuas nrog lub zog hluav taws xob hauv lub ntsuas hluav taws xob. Kev sib xyaw cov nqi hluav taws xob ntawm ntau lub ntsuas hluav taws xob nrog qhov ntsuas qhov tseeb, ob qho tib si yuav tsum ua kom zoo ib yam, thiab qhov hluav taws xob poob yuav tsum tsis txhob ntau dua 2 feem pua.
(2) Tshawb xyuas seb qhov hluav taws xob puas txawv txav vim qhov tsis ncaj ncees lawm rov qab ua ntu zus.
(3) Txheeb xyuas qhov hluav taws xob hauv hluav taws xob poob ntawm qhov hluav taws xob kab hluav taws xob mus rau lub ntsuas hluav taws xob. Raws li ib txwm muaj, qhov poob siab tsis ntau tshaj 2 feem pua.
