Cov tshuab hluav taws xob yog cov khoom siv los hloov hluav taws xob hluav taws xob rau hauv lub zog siv tshuab (thiab lwm yam). Kev ua haujlwm ntawm lub tshuab DC yog raws li txoj cai ntawm electromagnetic induction.
Cov chav no feem ntau yog siv hauv kev lag luam rau kev siv traction xws li cranes thiab winches. Ib qho tseem ceeb drawback ntawm lub cav yog tsim ntawm cov pa roj carbon deposits los ntawm cov txhuam ntawm lub collector. Txhawm rau kom tsis txhob muaj qhov ci ntsa iab ntau dhau, nws yog ib qho tsim nyog yuav tsum tshawb xyuas thiab ua kom muaj kev tiv thaiv kev tiv thaiv. Kev tsim cov tshuab DC txawv ntawm asynchronous thiab synchronous motors.
Nruab nrab ntawm cov ncej, uas tsim cov hlau nplaum tas li, muaj cov thauj tog rau nkoj ua hauv daim ntawv ntawm lub tog raj kheej steel. Coils ntawm tus neeg xyuas pib tooj liab tau muab tso rau hauv nws cov grooves, thiab qhov kawg ntawm tus neeg xyuas pib txuas nrog ib nrab lub nplhaib, uas yog cais los ntawm lwm qhov ntawm lub tshuab - qhov no yog cov khoom siv nrog cov txhuam txhuam. Lawv txuas mus rau sab nraud.
Txij li thaum lub zog hluav taws xob tshwm sim hauv cov coils, armature ntawm lub tshuab DC pib tig thaum lub teb hla nwstig.
Vim qhov tseeb tias qhov sib nqus induction yog faib tsis sib npaug ntawm lub tog raj kheej steel, qhov ceev ntawm EMF generated nyob ntawm qhov ceev tam sim no nyob rau hauv qhov sib txawv ntawm qhov lem. Yog li, nyob rau hauv tus ncej, qhov sib nqus induction yog siab tshaj plaws, thiab nyob rau hauv nruab nrab ntawm lub armature (nyob rau hauv lub longitudinal axis) nws yog sib npaug zos rau xoom.
Thaum lub armature ntawm lub tshuab DC tig, txhua ib nrab tig tus neeg xyuas pib hloov polarity, vim lawv poob rau hauv kev cuam tshuam ntawm cov ncej, yog li ntawd, cov kev taw qhia ntawm lub zog hluav taws xob hloov mus rau qhov ntxeev, thiab yog tias EMF hloov nyob rau hauv lub sij hawm thiab kev taw qhia, ces nws yuav tsum tau ntaus nqi mus rau qhov sib txawv. Txhawm rau kom cov khoom tsis tu ncua nkag mus rau sab nraud Circuit Court, cov khoom siv tau suav nrog hauv cov cuab yeej ntawm lub tshuab DC. Nws yog hom hloov. Tsau txhuam, uas txuas nrog rau sab nraud Circuit Court, swb ntawm ib nrab lub nplhaib rigidly anched.
Tig, lub armature tsuas yog nyob rau hauv kev sib cuag nrog txhuam uas nyob rau hauv ib qho kev polarity. Thaum lub sij hawm thaum cov kev taw qhia ntawm lub electromotive quab yuam hloov, lub nplhaib hloov, uas yog, rau sab nraud Circuit Court, tsis muaj kev hloov nyob rau hauv cov kev taw qhia ntawm EMF. Yog li, tus sau yog ib yam ntawm rectifier uas tsis tso cai rau lub generated tam sim no hloov.
Txhawm rau tshem tawm lub zog ntawm lub zog hluav taws xob, muaj cov coils ntawm lub armature uas txuas nrog cov khub ntawm cov ntawv sau. Cov kev hloov pauv hloov ntawm ib leeg los ntawm lub kaum sab xis me ntsis, qhov no tso cai rau koj los them nyiaj rau qhov tsis sib haum xeeb hauv kev sib haum xeeb thiab tam sim no nkag mus rau hauv Circuit Court yam tsis muaj ripple.
Yog DC cov tshuab ua haujlwm hauv lub cev muaj zog, tom qab ntawd, qhov tsis sib xws, qhov hluav taws xob tau siv rau cov txhuam hniav. Yog li, dhau los ntawm tus neeg sau, ib qho tam sim no tshwm nyob rau hauv lub lem, uas tsim nws tus kheej magnetic teb. Interacting nrog lub teb ntawm ncej, lub armature pib tig, txawm li cas los xij, nyob rau lub sijhawm thaum cov kev taw qhia ntawm kev sib hloov yuav tsum tau hloov thaum cov conductors hla ntawm tus ncej opposite, lub collector tseem hloov polarity. Yog li, cov kev taw qhia ntawm tam sim no thiab, raws li, nws cov magnetic teb hloov. Nyob rau hauv rooj plaub no, lub collector yog inverter, ib tug DC / AC converter.
