Ib qho ohmmeter txaus txaus los xyuas cov teeb tsa lub tshuab hluav taws xob thiab teeb meem. Txawm li cas los xij, cov ntaub ntawv muaj tseeb ntau ntxiv ntawm cov kab xev winding tuaj yeem tau txais kev siv cov cuab yeej tshwj xeeb uas tshawb rau cov kev ua yuam kev hauv cov windings los ntawm kev sib piv lawv cov tsis muaj qhov paub zoo winding. Lawv tsim nyog rau kev daws teeb meem ob qho tib si stator windings thiab kev zoo siab.
Tsim nyog
Ohmmeter, PDO-1 ntaus ntawv
Cov Lus Qhia
Kauj ruam 1
Tshawb xyuas lub rotor winding. Txhawm rau ua qhov no, tig rau ntawm ohmmeter los ntsuas qhov tsis kam ntawm kev tiv thaiv ntawm winding, thiab nqa nws txoj kev coj mus rau cov rotor ncig. Qhov tsis kam ntawm lub rotor pabcuam ntawm qhov hluav taws xob ntawm 14 V yog nyob rau hauv cov kev txwv hauv qab no: rau cov tshuab hluav taws xob uas ua haujlwm nrog voltage tus tswj tsim rau qhov tam sim no ntau ntawm 3, 5-4, 0 A - 3-5 Ohms, rau cov ua haujlwm nrog voltage cov tswj muab cai uas tsim los rau amperage 5 A - 2.5-3 Ohm Yog tias lub cuab yeej pom muaj qhov cuam tshuam loj heev, qhov no txhais tau tias lub tshav pob winding Circuit Court tau tawg. Qhov no feem ntau tshwm sim rau ntawm qhov chaw uas muaj lub viav vias sib txuas tau muag rau ntawm qhov ncig, thaum winding hlawv tawm lossis thaum lub thav duab nrog lub siab winding yog tig rau ntawm ib nrab-bushings ntawm tus ncej halves. Qhov no tseem qhia tau los ntawm qhov tsaus ntuj nti, nrog rau qhov tawg ntawm nws lub rwb thaiv tsev, uas tuaj yeem pom qhov muag pom. Qhov kev ua haujlwm tsis zoo no ua rau tig mus luv luv Circuit Court nyob rau hauv winding, uas yog nrog los ntawm qhov txo qis hauv cov tsis kam tag nrho. Yuav kom txiav txim siab ib feem tig-rau-tig luv Circuit Court, thaum qhov tsis kam ntawm windings hloov me ntsis, nws yog ua tau nrog cov cuab yeej tshwj xeeb nkaus xwb, piv txwv li PDO-1. Hauv qhov no, qhov ntsuas cua no yog piv nrog ib tus neeg paub zoo. Qhov ntsuas tsis pub cua ntawm cov neeg tsis sib haum (GA2, 955.3701) tau tshawb xyuas nrog ib qho ohmmeter, cov zis xaus ntawm uas txuas nrog ncaj qha rau cov kab hluav taws xob. Tom qab ntawv xyuas rau kom luv luv rau hauv av. Txhawm rau ua qhov no, ib qho kev coj ntawm ohmmeter yuav tsum nqa mus rau nws lub nqaj, lwm qhov - rau txhua lub nplhaib ntawm lub rotor, thiab hauv cov tshuab hluav taws xob tsis sib haum - mus rau inductor bushing thiab ib qho kev sib tw winding. Kev ua haujlwm winding yuav tsum qhia kev tawg ntawm ohmmeter, i.e. infinitely kuj zoo kawg thiab tsis kam.
Kauj ruam 2
Tshawb xyuas cov stator windings. Txhawm rau ua qhov no, txuas qhov xaus ntawm ohmmeter rau ib qho ntawm cov nqe lus ntawm winding thiab hlau pob, i.e. tshuaj xyuas kom luv rau hauv av. Cov cuab yeej nrog ua haujlwm winding yuav tsum qhia qhov qhib kev sib txuas lus. Kuaj qhov tig-rau-tig luv Circuit Court hauv lub stator windings. Txhawm rau ua qhov no, ntsuas qhov tsis kam ntawm ib theem zuj zus thiab sib piv cov txiaj ntsig nrog ib leeg, qhov sib txawv yuav tsum tsis ntau tshaj 10%. Cov theem tsis kam yog ib feem ntawm ib qho Ohm, yog li qhov no yuav tsum tau ntsuas cov cuab yeej ntsuas siab. Qhov tiav cov ntaub ntawv hais txog qhov xwm txheej ntawm lub tshuab hluav taws xob windings tuaj yeem muab los ntawm PDO-1 ntaus txuas nrog cov txuas ntawm peb theem. Thaum cov qib muaj zoo ib yam, tom qab ntawd ib qho nkhaus oscillographic tau pom ntawm qhov screen, yog tias tsis yog (vim tig rov qab kaw hauv theem) ces muaj ob txoj kab hlau nkhaus. Qhov ntsuas yuav tsum rov qab ua dua, tau yav tas los rov qab ua ntu ntawm cov theem. Yog li, nws yog qhov ua tau kom pom qhov tsis sib xws ntawm theem, piv txwv li, muaj ntau qhov sib txawv ntawm lawv, uas tuaj yeem tshwm sim tom qab rewinding cov stator. Txheeb xyuas cov theem tsis ua tiav nrog ib qho ohmmeter, hloov txuas nws txuas mus rau xoom thiab ua kom cov zis txhua theem.
