Multimeter los kuaj inverter rectifier choj zoo los yog phem txoj kev
Nrog ib tug multimeter tiv thaiv thaiv yuav txiav txim lub inverter rectifier choj puas, lub parallel rectifier choj 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 cov txiaj ntsig zoo ib yam. Yog hais tias tus nqi kuj ntawm peb-theem imbalance los yog tus cwj mem liab mus rau lub P davhlau ya nyob twg, qhov kev tiv thaiv yog infinite, koj muaj peev xwm txiav txim siab 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 hauv lem, yuav tsum muaj ob peb kaum ohms ntawm qhov tsis kam, thiab tus nqi tsis kam ntawm txhua theem yog tib yam, tus cwj mem dub rau P davhlau ya nyob twg, tus cwj mem liab mus rau U, V, W nyob rau hauv lem, muaj ib tug nyob ze rau infinity ntawm tus nqi kuj. Tus cwj mem dub rau N davhlau ya nyob twg, rov ua cov kauj ruam saum toj no, koj 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-up xeem. Ua ntej thiab tom qab fais fab tuag raws li cov ntsiab lus ntawm qhov kev ua txhaum, txiav txim siab qhov txhaum thiab ua rau.
Kev puas tsuaj ua rau kev tsom xam:
(1) Cov cuab yeej nws tus kheej tsis zoo;
(2) Lub hauv qab theem Circuit Court thiab inverter fais fab hloov cuab yeej raug puas ntsoog, ua rau lub rectifier choj ntws los ntawm lub luv luv tam sim no thiab puas;
(3) Cov kab hluav taws xob hluav taws xob siab dhau lawm, thiab cov kab hluav taws xob raug cuam tshuam rau xob laim thiab overvoltage surges. Sab hauv tsis kam ntawm daim phiaj yog me me, thiab 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) Lub zog hloov hluav taws xob ntawm lub inverter thiab daim phiaj hluav taws xob ze dhau, cov kab impedance nyob rau hauv nruab nrab yog me me, thiab lub inverter tsis tau nruab nrog DC reactor thiab input sab AC reactor, uas tso lub rectifier choj nyob rau hauv lub xeev. ntawm capacitive filtering ntawm lub siab amplitude ntawm lub ntse mem tes tam sim no cuam tshuam, ua rau ntxov ntxov puas rau lub rectifier choj;
(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 nyab xeeb 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. Nrog lub dab dej kub muaj cov thermal conductivity, yuav tsum muaj cov txheej txheem zoo ntawm silicone roj kom txo tau cov thermal tsis kam;
(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-bridge nrhiav kom tau ib nrab-bridge yog tsim los ntawm ob lub diodes rectifier, los ntawm kev siv lub multimeter los ntsuas ob lub diodes nyob rau hauv ib nrab-bridge, raws li, qhov zoo thiab tsis zoo kuj tus nqi yog qhov qub, koj tuaj yeem txiav txim seb ib nrab ntawm tus choj yog ib txwm.
2. tag nrho-bridge nrhiav tau ntawm feem ntau ntawm cov rectifier tag nrho-bridge, yog cim nrog "+", "-", "~" cov cim (ntawm qhov "+" yog tus nqi ntawm cov zis rectified). "rau qhov zoo tso zis voltage tom qab rectification, "-" rau qhov tsis zoo 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 tus nqi (thiab cov qauv ntsuas diode zoo tib yam) yog qhov qub, koj tuaj yeem ua tau. txiav txim seb tus choj tag puas puas lawm. Yog hais tias ntsuas nyob rau hauv tag nrho tus choj nplawm diode rau pem hauv ntej thiab thim rov qab qhov tseem ceeb yog 0 lossis infinity, nws tuaj yeem txiav txim siab tias lub diode tau raug puas tsuaj los ntawm kev tawg lossis qhib-circuit.
