Txoj kev ntawm multimeter los txiav txim tib lub npe kawg ntawm peb-theem asynchronous lub cev muaj zog winding
Txoj kev 1. Daim duab peb sab txuas kev soj ntsuam
Kauj Ruam 1: Teem lub multimeter rau R × 100 iav, thiab ntsuas rau 6 lub xov hlau tawm ntawm lub cev muaj zog hlws ris lub thawv, ob thiab ob, ntsig txog, txhawm rau txiav txim siab peb theem winding.
Txoj kev tshwj xeeb: txuas cov xim liab (lossis dub) ua rau ib qho ntawm cov hlau lead; cov dub (lossis liab) kuaj cov hmoov txhuas tiv tauj lwm tsib cov hlau lead hauv lem; ob qhov kawg ntawm cov channel (hais txog qhov loj dua deflection thiab me me tsis kam) yog ib theem, thiab ua ib qho cim (nws pom zoo kom siv knotting lossis coloring ua tus cim cim) kom paub qhov txawv ntawm ob theem hauv qab no, thiab lwm yam. , faib rau cov kab hlau lead ua peb pawg (raws li qhia hauv daim duab 2).
Kauj ruam 2: Teem lub multimeter rau tam sim no micro-ampere thaiv, thiab xyuas cov xov hlau raws li qhia hauv daim duab los txiav txim lub taub hau thiab tus Tsov tus tw kawg ntawm ob-theem windings.
txoj kev tshwj xeeb:
(1) Teem lub multimeter rau microamp tam sim no;
(2) Cov cwj mem liab thiab xim dub ntawm lub multimeter txuas nrog ob kawg ntawm ib qho ntawm cov windings ntawm lub cev muaj zog; los ntawm: Tsev Hluav Taws Xob Technology
(3) Tom qab ntawd hu rau ob lub terminals ntawm lwm theem ntawm lub cev muaj zog ua tiav nrog qhov tsis zoo thiab zoo electrodes ntawm lub roj teeb (los yog tshem tawm cov roj teeb hauv lub multimeter rau kev sim) E (9V lossis 1.5V roj teeb);
(4) Yog hais tias lub pointer ntawm lub multimeter yog deflected nyob rau hauv qhov zoo kev taw qhia, lub davhlau ya nyob twg txuas nrog lub zoo davhlau ya nyob twg ntawm lub roj teeb thiab lub davhlau ya nyob twg txuas mus rau qhov tsis zoo davhlau ya nyob twg multimeter (dub xeem cwj mem) yog cov terminals ntawm tib lub npe; txwv tsis pub, lub davhlau ya nyob twg txuas nrog lub davhlau ya nyob twg tsis zoo ntawm lub roj teeb thiab lub davhlau ya nyob twg txuas nrog lub davhlau ya nyob twg tsis zoo ntawm multimeter (black test cwj mem) yog cov terminals ntawm tib lub npe. Tib lub npe kawg; raws li pom nyob rau hauv daim duab, nws yog cim nrog ib tug dub dot raws li lub taub hau kawg (los yog tus Tsov tus tw kawg), uas yog tib lub npe kawg. Nyob rau hauv tib txoj kev, txiav txim lub taub hau thiab tus Tsov tus tw ntawm lwm theem.
Txoj Kev 2: Kev ntsuam xyuas Star junction
Kauj ruam 1: Txiav txim siab peb-theem winding (txoj kev yog tib yam li saum toj no, nco ntsoov tias tom qab txhua theem tau kuaj pom, yuav tsum tau ua ib qho yooj yim thiab meej kos npe; txhawm rau paub qhov txawv peb-theem stator winding).
Kauj ruam 2: Lub hnub qub kev sib txuas los txiav txim qhov pib thiab xaus ntawm peb theem winding 1.
txoj kev tshwj xeeb:
(1) Teem lub multimeter rau micro-block;
(2) luv luv-circuit txhua qhov kawg ntawm peb windings ntawm peb-theem asynchronous lub cev muaj zog ua ke los txuas cov hlau kuaj liab, txuas rau peb qhov kawg ua ke, thiab tom qab ntawd txuas mus rau cov hlau lead kuaj dub;
(3) Tig lub cev muaj zog ntawm qhov ceev tsis tu ncua thiab saib xyuas qhov deflection ntawm tus taw tes.
(4) Yog hais tias tus pointer tsis yog deflected, peb xaim xaus xaiv los ntawm txhua qhov winding txuas ua ke yog tib lub npe xaus (raws li qhia hauv daim duab 3). Txwv tsis pub, nws yuav tsum tau kho los ntawm kev hloov cov kab.
2. Txoj cai hloov kab:
(1) Kos lub taub hau thiab tus Tsov tus tw ntawm peb lub windings feem, thiab txiav txim siab cov lej davhlau ya nyob twg.
(2) Ib pawg windings (xav tias yog ⑤-⑥ kawg) yog ib txwm kho thiab siv los ua ib qho kev siv.
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Txuas nrog, daim duab sib txuas ntawm lub hnub qub thiab delta kev sib txuas ntawm stator windings UI-U2, V1-V2, W1-W2 ntawm peb-theem asynchronous lub cev muaj zog yog qhia hauv daim duab{{7} }. Qhov dav nkhaus qhia tau hais tias lub hnub qub kev sib txuas ntawm peb-theem asynchronous lub cev muaj zog yog qhov ruaj khov tes winding. Lub taub hau kawg (los yog tus Tsov tus tw) ntawm peb-theem asynchronous lub cev muaj zog yog txuas nrog ib leeg; thiab delta kev twb kev txuas ntawm peb-theem asynchronous lub cev muaj zog yog tias lub taub hau kawg ntawm stator winding ntawm ib theem yog txuas nrog tus Tsov tus tw kawg ntawm stator winding ntawm lwm theem. Ntawd yog hais tias, txawm hais tias nws yog lub hnub qub kev sib txuas lossis kev sib txuas ntawm delta, thaum kho lub cev muaj zog, tus yuam sij yog thawj zaug txiav txim siab peb-theem tsau-tes winding thiab nws lub taub hau thiab tus Tsov tus tw kawg ntawm peb-theem asynchronous lub cev muaj zog. Tus kws sau ntawv muab nws tus kheej kev xyaum qhia kev paub thiab piav qhia txog ob hom kev siv ceev ceev ntawm multimeters. Ib txoj hauv kev los txiav txim lub taub hau thiab tus Tsov tus tw kawg ntawm peb-theem asynchronous lub cev muaj zog windings.
