Kev ua haujlwm zoo ntawm cov khoom siv ntsuas hluav taws xob thib ob ncaj qha cuam tshuam rau qhov tseeb ntawm cov ntaub ntawv xeem thiab kev ua haujlwm nyab xeeb ntawm lub zog hluav taws xob. Kev txiav txim siab nws txoj haujlwm ua haujlwm yuav tsum muaj kev ntsuam xyuas dav dav ntawm plaub yam: kev tshuaj xyuas qhov muag, lub zog- ntawm tus kheej- kuaj, ntsuas ntsuas ntsuas, thiab ntsuas lub sijhawm.
1. Kev Tshuaj Xyuas Kev Pom Zoo thiab Kev Tshawb Xyuas Hluav Taws Xob: Tshawb xyuas cov khoom siv casing rau kev puas tsuaj, kom ntseeg tau tias tsis muaj kab nrib pleb, deformations, lossis kub hnyiab.
Paub meej tias cov cables kuaj tsis muaj kev puas tsuaj, cov ntsaws ruaj ruaj, thiab cov clamp meter lub puab tsaig yog huv si thiab kaw nruj nreem.
Rau plaub -terminal resistance testers, xyuas kom meej tias cov kab tam sim no thiab voltage yog ywj siab thiab tsis luv -circuited.
Yog tias pom muaj kev puas tsuaj rau lub cev, cov khoom siv yuav ua haujlwm tsis zoo thiab yuav tsum tau txiav tawm.
2. Fais fab-ntawm Tus Kheej- kuaj thiab Kev Tshawb Fawb Ua Haujlwm: Tom qab lub tshuab hluav taws xob, saib seb cov khoom puas ua tiav tus kheej- cov txheej txheem kuaj (piv txwv li, screen zaub, qhia lub teeb flashing, buzzer suab).
Txheeb xyuas cov ntawv qhia zaub mov rau cov lej yuam kev lossis cov lus ceeb toom (xws li "qhib Circuit Court," "dhau-kub," "synchronization tsis ua haujlwm"). Tom qab nkag mus rau lub ntsiab interface, sim hloov kev ntsuas hom (piv txwv li, CT / PT load, voltage poob, tsis kam) kom paub meej tias cov lus teb ua haujlwm.
3. Kev Ntsuas Kev Ntsuas (Txoj Kev Sib Piv) Ua tus ntoo khaub lig- siv tau raws li cov qauv voj voog lossis cov cuab yeej zoo sib xws nrog cov tsis paub:
Inductor Load Tester: Kuaj ntawm lub simulated load nrog paub impedance qhov tseem ceeb thiab sib piv kev nyeem ntawv deviations kom pom tias lawv nyob hauv qhov kev tso cai (feem ntau Tsawg dua lossis sib npaug li ± 3%).
Voltage Drop Tester: Los ntawm shorting tus tswv thiab qhev input terminals, qhov kev cia siab voltage poob yuav tsum nyob ze rau 0%. Ib qho kev nyeem ntawv txawv txav qhia tau hais tias qhov kev ua txhaum ntawm cov channel.
Loop Resistance Tester: Siv tus qauv resistor (xws li, 100μΩ) rau kev ntsuas thiab txiav txim siab seb cov txiaj ntsig zoo ib yam.
Nws raug nquahu kom ua qhov ntsuas ntsuas nrawm ua ntej ua haujlwm txhua hnub kom ntseeg tau tias cov khoom siv nyob rau hauv lub xeev txhim khu kev qha.
4. Periodic Calibration thiab Certificate Verification Tag nrho cov khoom siv kuaj thib ob yuav tsum raug xa mus kuaj xyuas txhua xyoo kom tau txais daim ntawv pov thawj calibration uas muab los ntawm lub chaw ntsuas ntsuas.
Txheeb xyuas hnub calibration tom ntej ntawm cov khoom siv ua ntej siv. Cov cuab yeej siv tas sij hawm yuav tsum tsis txhob siv rau kev sim.
Cov khoom ntsuas ntsuas yuav tsum suav nrog cov ntsuas tseem ceeb xws li qhov raug, linearity, thiab tiv thaiv - muaj peev xwm cuam tshuam.
Kev ceeb toom tshwj xeeb: Tom qab ua haujlwm ntev hauv cov av noo, siab - kub, lossis muaj zog electromagnetic ib puag ncig, nws raug nquahu kom ua qhov kev sim tam sim ntawm - qhov chaw sib piv los tiv thaiv cov khoom siv los ntawm ib puag ncig.
