Multimeter xeem inverter rectifier choj txoj kev zoo los yog phem
Nrog ib tug multimeter tiv thaiv thaiv tuaj yeem txiav txim siab qhov kev puas tsuaj ntawm tus choj inverter rectifier, tus choj rectifier txuas mus ntxiv kom loosen cov connectors, nrhiav qhov phem.
1, kuaj lub rectifier Circuit Court
Lub multimeter yuav raug hloov kho rau cov ntaub ntawv tsis kam X10, tus cwj mem liab mus rau P davhlau ya nyob twg, tus cwj mem dub rau R, S, T davhlau ya nyob twg, yuav tsum muaj txog kaum tawm ohms ntawm qhov tsis kam, thiab qhov sib npaug yooj yim. Txuas tus cwj mem dub mus rau P davhlau ya nyob twg, tus cwj mem liab rau R, S, T nyob rau hauv lem, muaj ib tug kuj nqi ze rau infinity. Tus cwj mem liab mus rau N davhlau ya nyob twg, rov ua cov kauj ruam saum toj no, yuav tsum muaj qhov tshwm sim zoo ib yam. Yog hais tias tus nqi kuj ntawm peb-theem imbalance los yog tus cwj mem liab rau lub P davhlau ya nyob twg, qhov kev tiv thaiv yog infinite, nws yuav txiav txim tau hais tias lub Circuit Court tau txawv txav, rectifier choj tsis ua hauj lwm.
2, kuaj lub inverter Circuit Court
Tus cwj mem liab mus rau P davhlau ya nyob twg, tus cwj mem dub rau U, V, W, yuav tsum muaj ob peb kaum ohms ntawm qhov tsis kam, thiab tus nqi tsis kam ntawm txhua theem yog tib yam, yuav txuas nrog tus cwj mem dub rau hauv P davhlau ya nyob twg, tus cwj mem liab rau U, V, W, muaj qhov ze rau infinity ntawm tus nqi tsis kam. Tus cwj mem dub rau N davhlau ya nyob twg, rov ua cov kauj ruam saum toj no, yuav tsum tau txais cov txiaj ntsig zoo ib yam, txwv tsis pub koj tuaj yeem txiav txim siab qhov inverter module tsis ua haujlwm.
Nyob rau hauv lub rectifier Circuit Court thiab inverter Circuit Court test yog ib txwm, tsuas yog tom qab lub hwj chim kuaj. Ua ntej thiab tom qab lub hwj chim-on raws li cov ntsiab lus ntawm qhov teeb meem txhaum cai, los txiav txim qhov txhaum thiab qhov ua rau.
Kev puas tsuaj ua rau kev tsom xam:
(1) Cov cuab yeej nws tus kheej tsis zoo;
(2) Lub tshuab hluav taws xob rov qab thiab lub tshuab hluav taws xob hloov hluav taws xob tau raug puas ntsoog, ua rau tus choj rectifier ntws los ntawm qhov luv-circuit tam sim no thiab kev puas tsuaj;
(3) Cov kab hluav taws xob hluav taws xob siab dhau lawm, thiab kab sib chaws ntsib xob laim thiab overvoltage surges. Sab hauv tsis kam ntawm daim phiaj yog me me, thiab lub varistor rau kev tiv thaiv overvoltage tau hlawv tawm thiab tsis ua haujlwm, ua rau tag nrho cov overvoltage ntxiv rau tus choj rectifier;
(4) inverter thiab daim phiaj fais fab transformer yog ze heev, kab impedance nyob rau hauv nruab nrab yog heev me me, lub inverter yog tsis ntsia DC reactor thiab input sab AC reactor, yog li ntawd tus rectifier choj nyob rau hauv lub capacitive filtering ntawm siab amplitude ntse mem tes tam sim no cuam tshuam lub xeev, ua rau muaj kev puas tsuaj ntxov ntxov rau tus choj rectifier;
(5) Kev nkag mus rau theem poob, kom tus choj rectifier lub nra thiab kev puas tsuaj.
Nrhiav lub hauv paus ua rau tus choj rectifier puas, thiab tshem tawm, tiv thaiv kev hloov ntawm tus choj rectifier tshiab thiab kev puas tsuaj.
(1) Hloov tus choj rectifier tshiab, vuam ntawm tus choj rectifier yuav tsum xyuas kom meej tias cov vuam yog txhim khu kev qha. Xyuas kom meej tias cov hluav taws xob muaj kev ruaj ntseg nrog cov khoom siv peripheral ntawm qhov sib nrug, cov ntsia hlau txuas yuav tsum tau nruj kom tiv thaiv kev tiv thaiv thiab cua sov. Thaum tshav kub kub dab dej muaj conduction tshav kub conduction, yuav tsum tau ib tug zoo txheej ntawm silicone roj kom txo thermal kuj;
(2) Kev sib txuas rectifier choj siv tib tus qauv, tib lub chaw tsim khoom cov khoom kom tsis txhob muaj qhov tsis sib xws tam sim no thiab kev puas tsuaj.
1. Ib nrab-choj nrhiav kom tau ib nrab-bridge yog tsim los ntawm ob lub diodes rectifier, los ntawm kev siv ib lub multimeter los ntsuas ob lub diodes nyob rau hauv ib nrab-bridge zoo thiab tsis zoo kuj tus nqi yog qhov qub, koj tuaj yeem txiav txim siab seb tus choj ib nrab yog qhov qub.
2. tag nrho-bridge nrhiav tau ntawm feem ntau ntawm cov rectifier tag nrho-bridge, yog cim nrog "+", "-", "~" cov cim (xws li "+") " rau qhov zoo ncej ntawm rectified output voltage, "-" rau qhov tsis zoo ncej ntawm qhov tso zis voltage, "~" rau AC voltage input), nws yog ib qho yooj yim los txiav txim cov electrodes.
Kev kuaj pom, los ntawm kev ntsuas lub "+" ncej thiab ob "~" ncej, "-" ncej thiab ob "~" Nruab nrab ntawm lub rectifier diode zoo thiab tsis zoo kuj muaj nuj nqis (thiab cov qauv ntsuas diode zoo tib yam) yog qhov qub, koj tuaj yeem ua tau. txiav txim siab seb tus choj tag nrho puas tau puas lawm. Yog hais tias qhov ntsuas tag nrho-bridge nplawm diode qhov zoo thiab qhov tsis zoo kuj tseem ceeb yog 0 lossis infinity, koj tuaj yeem txiav txim siab tias lub diode tau tawg lossis qhib-circuit puas.
