Kev poob thaum lub sijhawm ua haujlwm transformer muaj ob ntu:
(1) Nws yog tshwm sim los ntawm cov tub ntxhais hlau. Thaum lub coil yog energized, cov kab sib nqus ntawm lub zog yog alternating, ua rau eddy tam sim no thiab hysteresis poob nyob rau hauv cov tub ntxhais hlau. Qhov kev poob no yog sib sau ua ke hu ua hlau poob.
(2) Nws yog tshwm sim los ntawm qhov tsis kam ntawm lub kauj nws tus kheej. Thaum tam sim no dhau los ntawm thawj kauj thiab theem nrab ntawm lub transformer, yuav muaj kev poob ntawm hluav taws xob. Qhov kev poob no hu ua tooj liab poob.
Qhov sib npaug ntawm cov hlau poob thiab tooj liab poob yog qhov poob ntawm transformer. Cov kev poob no muaj feem xyuam nrog lub peev xwm ntawm lub tshuab hluav taws xob, qhov hluav taws xob thiab kev siv cov khoom siv. Yog li ntawd, thaum xaiv lub transformer, koj yuav tsum sim ua kom cov cuab yeej muaj peev xwm ua tau raws li qhov tseeb kev siv los txhim kho cov khoom siv, thiab ceev faj tsis txhob khiav lub transformer ntawm lub teeb load.
Dab tsi yog transformer nameplate? Cov ntaub ntawv tseem ceeb ntawm daim ntawv teev npe yog dab tsi?
Lub npe ntawm lub transformer qhia txog kev ua tau zoo, kev qhia tshwj xeeb thiab kev siv sijhawm ntawm lub tshuab hloov pauv kom txaus siab rau cov neeg siv xaiv. Cov ntaub ntawv tseem ceeb uas yuav tsum tau them rau thaum xaiv yog feem ntau:
(1) Kilovolt-ampere ntawm lub peev xwm ntsuas. Ntawd yog, qhov tso zis muaj peev xwm ntawm lub transformer nyob rau hauv rated tej yam kev mob. Piv txwv li, lub peev xwm ntsuas ntawm ib theem transformer=U kab × I kab; lub peev xwm ntawm peb-theem transformer=U kab × I kab.
(2) Rated voltage volts. Kos lub davhlau ya nyob twg voltage ntawm thawj kauj thiab lub davhlau ya nyob twg voltage ntawm lub thib ob kauj (thaum tsis muaj load txuas) raws li. Nco ntsoov tias lub davhlau ya nyob twg voltage ntawm peb-theem transformer yog hais txog kab voltage U kab nqi.
(3) Rated tam sim no amperes. Nws yog hais txog cov kab tam sim no kuv kab tus nqi uas thawj kauj thiab theem ob coil raug tso cai kom dhau mus ntev nyob rau hauv cov xwm txheej ntawm cov peev txheej ntsuas thiab tso cai kom sov.
(4), voltage piv. Hais txog qhov sib piv ntawm qhov ntsuas hluav taws xob ntawm thawj kauj ruam mus rau qhov ntsuas hluav taws xob ntawm theem nrab kauj.
(5), txoj kev xaim.Ib-theem transformerstsuas yog muaj ib txheej coils rau siab thiab qis voltage, thiab tsuas yog siv rau ib theem xwb. Peb-theem transformers muaj Y / Δ hom. Ntxiv nrog rau cov ntaub ntawv saum toj no, kuj tseem muaj qhov ntsuas zaus, tus naj npawb ntawm theem, qhov kub thiab txias ntawm lub transformer, impedance feem pua ntawm transformer, thiab lwm yam.
