Hloov pauv tam sim no thiab ncaj qha tam sim no: sib txawv thiab zoo sib xws

tam sim no, ntauwd hluav taws xob

Koj yuav tsum sib txawv ntawm qhov hloov pauv tam sim no thiab ncaj qha tam sim no. Ob qho tseem ceeb heev, thiab tau siv ob qho tib si hauv kev lag luam thiab nyob rau qib hauv tsev kom muaj hwj chim ntau yam khoom siv. Los ntawm cov tshuab tsim khoom, rau cov cuab yeej siv hauv tsev, los ntawm cov khoom siv mobile, thiab lwm yam raws hluav taws xob.

Ib qho ntxiv, koj tseem yuav kawm qhov zoo sib xws, vim tias lawv muaj nyob nruab nrab ntawm DC thiab AC, nrog rau cov dab neeg zoo siab thiab tawm tsam ntawm ob tus neeg tsim khoom nto npe heev uas txawm coj mus rau qee qhov kev ua phem los txhawb lawv ...

Dab tsi yog kwj dej?

Faraday qhov tsis tu ncua

Una tam sim no nws yog qhov ntws ntawm qee yam, puas yog dej ntws, lossis hluav taws xob tam sim no. Hauv qhov hluav taws xob tam sim no, dab tsi tshwm sim tiag tiag yog tias muaj cov hluav taws xob ntws los ntawm sab hauv ntawm tus neeg xyuas pib, txawm tias nws tsis pom.

Qhov no hluav taws xob tam sim no Nws tuaj yeem yog ob hom hauv paus ...

Qhov ncaj qha tam sim no yog dab tsi?

Thomas Alba Edison

Raws li koj yuav tau paub yog tias koj nyeem blog no ntau zaus, lub DC, kuj tseem sau luv li CC (lossis DC hauv Askiv), yog tam sim no nrog ib qho kev taw qhia. Ntawd yog, kev siv hluav taws xob yuav nyob rau hauv cov lus qhia tshwj xeeb los ntawm tus neeg xyuas pib ntawm ob lub ntsiab lus ntawm qhov muaj peev xwm sib txawv thiab them nqi hluav taws xob. Yog tias peb tau teeb duab tam sim no ntawm kab, nws yuav tshwm sim ua ntu zus, kab tas li.

Qhov tam sim no ncaj qha tau tsim thawj zaug hauv xyoo 1800, ua tsaug rau lub roj teeb uas tsim los ntawm Italis tus kws kho mob Alessandro Volta. Qhov xwm txheej ntawm cov dej ntws tam sim no tsis nkag siab zoo thaum lub sijhawm, tab sis nws yog qhov ua tiav tseem ceeb. Xyoo 1870 thiab pib xyoo 1880, qhov hluav taws xob no tau pib tsim hauv cov chaw tsim hluav taws xob, rau kev teeb pom kev zoo ntawm cov tuam txhab thiab cov tsev tom qab tsim lub teeb pom kev zoo. Thomas Edison.

Txhawm rau tiv thaiv hom tam sim no, Edison tuaj ua qhov qhia tau zoo tiag tiag, sim ua tsis lees paub Nikola Tesla, thov tias nws tam sim no tau txaus ntshai dua. Txhawm rau ua qhov no, Edison tuaj ua rau pej xeem pom kev ua hluav taws xob tua tsiaj sib txawv. Thaum ntxov xyoo 1903, ntau txhiab tus neeg tau pom tias nws tua hluav taws thiab tua tus ntxhw nrog tam sim no ntawm 6600 volts. Txawm li cas los xij, tus ntxhw yav dhau los tau noj cov tshuaj lom cyanide lom kom ntseeg tau tias nws tuag. Txhua qhov xwm txheej no raug hu ua Tsov rog ntawm cov dej ntws.

Cov ntawv thov thiab hloov dua siab tshiab

Qhov tam sim no ncaj qha tau maj mam hloov los ntawm kev hloov pauv tam sim no, uas muaj nws qhov zoo, raws li peb yuav pom. Txawm li cas los xij, tam sim no nws tau siv dav rau kev ua haujlwm ntawm cov khoom siv hluav taws xob, xws li cov cuab yeej ua suab pom, khoos phis tawj, thiab lwm yam. Rau txhua tus ntawm lawv los ua haujlwm los ntawm cov hluav taws xob sib txuas uas tau hloov pauv, cov cuab yeej hloov kho tau siv rau kev hloov pauv, xws li cov hloov pauv lossis cov khoom siv fais fab.

Polarity

Txawm hais tias nyob hauv kev hloov pauv tam sim no polarity Nws tsis yog qhov tseem ceeb, ncaj qha tam sim no nws yog ib yam tseem ceeb heev, thiab nws yuav tsum tau hwm yog tias lub Circuit Court ua haujlwm tau zoo thiab tsis tawg. Hloov pauv qhov sib txawv hauv DC tuaj yeem txhais tau tias kev puas tsuaj tsis hloov pauv hauv qee kis, yog li koj yuav tsum tau ceev faj nrog qhov no.

Tias yog vim li cas nws thiaj li pom pom cov kab hluav taws xob lossis kab cim cim nrog lawv cov ncej sib xws, lossis xim kom paub qhov txawv nws. Feem ntau, liab yog siv rau tus ncej zoo (+), thiab dub rau qhov tsis zoo (-). Qee qhov nyuaj hauv DC Circuit tuaj yeem ntxiv xim ntxiv thiab.

AC yog dab tsi?

Nikola Tesla

La hloov tam sim no, sau luv li CA (lossis AC hauv Askiv), yog hom hluav taws xob tam sim no uas nws qhov loj thiab kev coj txawv txawv ib ntus, nyob rau lub sijhawm. Qhov ntawd yog hais, tsis zoo li CC, uas yog kab ncaj qha sawv cev hauv kab lus, thaum hloov pauv ib qho nws tau sawv cev raws li kev ua sinusoidal oscillation. Tus naj npawb ntawm kev ua tiav ib pliag yuav nyob ntawm qhov zaus ntawm lub voj voog. Piv txwv li, hauv Tebchaws Europe peb muaj 50 Hz, lossis 50 zaug hauv ib pliag, thaum nyob hauv Asmeskas nws ua haujlwm ntawm 60 Hz.

Qhov tam sim no yuav tshwm sim hauv 1832, thaum Pixii yuav tsim lub thawj alternator, lub tshuab hluav taws xob dynamoelectric, raws li Faraday cov hauv paus ntsiab lus. Tom qab ntawd, Pixii tseem yuav ntxiv qhov hloov pauv los tsim cov khoom ncaj qha, uas tau siv ntau dua thaum ub. Xyoo 1855 nws tau txiav txim siab tias AC tau zoo dua DC thiab tau hloov pauv nws.

Hloov pauv thev naus laus zis tam sim no tsim nyob hauv Europe, ua tsaug rau kev ua haujlwm ntawm Guillaume Duchenne nyob rau xyoo 1850. Xyoo 1876, tus kws tshaj lij Lavxias tseem yuav tsim lub teeb pom kev zoo ib yam li Edison, tab sis nrog AC siab. Lub tuam txhab Ganz Works hauv Budapest yuav pib tsim cov cuab yeej teeb pom kev zoo raws li cov hauv paus ntsiab lus no, ntxiv rau lwm yam khoom siv raws li cov kwj deg no.

Serbian engineer thiab inventor Nikola Tesla, yog ib tus tiv thaiv zoo tshaj plaws ntawm qhov tam sim no tawm tsam Edison qhov txuas ntxiv mus. Nws tsim thiab tsim thawj qhov hloov pauv tam sim no lub cev muaj zog, uas tuaj yeem hloov hluav taws xob lub zog mus rau kev siv tshuab. Ib qho ntxiv, tus ntse no tseem yuav pab ua kom lub zog faib hluav taws xob zoo dua qub yam tsis tau hloov pauv kab.

Ib qho ntxiv, Tesla tau tshuaj xyuas cov cuab yeej tsim los ntawm European engineers hu ua transformer. Ua tsaug rau nws, nws tuaj yeem hloov pauv mus rau qhov qis dua hluav taws xob, thiab yog li ua rau nws muaj kev nyab xeeb rau cov tsev, tsis tas yuav xav kom nws tuaj txog hauv qhov ntau uas nws tau tsim, txij li ib qho kev ntshai tshaj plaws yog nws qhov txaus ntshai. Cov kev tshawb nrhiav no yuav yog qhov pib ntawm kev hu xov tooj Tsov rog ntawm cov dej ntws.

Txhua daim ntawv pov thawj hais txog AC ntawm Nikola Tesla tau muab rau lub tuam txhab Westinghouse Hluav Taws Xob, txhawm rau nce peev thiab txuas ntxiv nrog cov phiaj xwm raws qhov kev hloov pauv no. Tom qab qhov no, thawj qhov sib kis ntawm AC yuav tsis siv sijhawm ntev, tshwm sim xyoo 1891. Qhov ntawd yuav tshwm sim hauv Telluride (Colorado), ob peb hlis tom qab kuj nyob hauv Europe, los ntawm Lauffen mus rau Frankfurt (Lub Tebchaws Yelemees).

Raws li AC yeej thiab nthuav tawm thoob plaws ntiaj teb, Thomas Edison txuas ntxiv pab txhawb rau qhov ncaj qha tam sim no, qee yam uas yuav raug nqi nws txoj haujlwm ntawm lub tuam txhab. Edison hluav taws xob (tam sim no hu ua General Electric), uas nws tus kheej tau tsim ...

Aplicaciones

Kev hloov pauv tam sim no tau siv rau kev lag luam thiab rau tsev, yog tus uas taug kev hla cov kab hluav taws xob nqa hluav taws xob mus rau txhua qhov chaw hauv ntiaj teb. Nws tuaj yeem siv cov cuab yeej siv hauv tsev, lub cev muaj zog, cov tshuab tsim khoom, cov tub yees txias, thiab ntau ntxiv.

Polarity

Raws li kuv tau hais ua ntej, thaum koj txuas a plug, koj tsis tau ceev faj li cas koj tso nws raws li nws yuav ua haujlwm nyob rau txhua kis. Qhov no yog vim qhov kev hloov pauv ntawm qhov hloov pauv tam sim no, raws li nws yuav hloov pauv. Txawm li cas los xij, rau kev teeb tsa ib txwm muaj, tseem muaj txoj hauv kev kom paub qhov txawv ntawm cov thaiv, thiab lwm yam. Feem ntau koj muaj xaim daj / ntsuab uas yog av, xaim xaim lossis xaim yuav nyob nruab nrab, thiab xim av lossis xim dub yuav yog theem.

DC vs AC: qhov zoo thiab qhov tsis zoo

cc vs cav

Ob qho dej ntws tseem siv dav niaj hnub no, zoo li lawv muaj nws qhov zoo thiab qhov tsis zoo. Piv txwv li:

  • Kev hloov pauv tam sim no yog qhov hloov pauv tau yooj yim heev, qee yam uas tsis tshwm sim nrog ncaj qha tam sim no.
  • Txhawm rau hloov qhov hluav taws xob, hauv kev hloov pauv tam sim no koj tsuas yog yuav tsum tau siv lub tshuab hloov pauv, thaum nyob rau tam sim no koj yuav tsum txuas cov tshuab hluav taws xob lossis cov tshuab hluav taws xob hauv koob, uas tsis muaj txiaj ntsig.
  • Kev hloov pauv tam sim no tuaj yeem faib rau qhov ntev uas tsis muaj qhov siab tam sim no, poob tsawg heev nyob rau hauv daim ntawv ntawm cov cua sov vim Joule cov nyhuv thiab lwm yam cuam tshuam xws li dej ntws los yog hysteresis. Thaum DC muaj kev poob ntau heev, thiab nws yuav tsim nyog kom muaj ntau lub tshuab fais fab nyob ze rau cov ntsiab lus thov.

Kev hloov pauv AC / DC

ATX qhov chaw

(saib fais fab mov)


Cov ntsiab lus ntawm tsab xov xwm ua raws li peb cov ntsiab cai ntawm kev tswj hwm kev ncaj nceesCov. Tshaj tawm ib qho yuam kev nyem no.

Yog thawj tus tuaj tawm tswv yim

Tso koj saib

Koj email chaw nyob yuav tsis tsum luam tawm. Yuav tsum tau teb cov cim nrog *

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  1. Lub luag haujlwm rau cov ntaub ntawv: Miguel Ángel Gatón
  2. Lub hom phiaj ntawm cov ntaub ntawv: Tswj SPAM, kev tswj xyuas tawm tswv yim.
  3. Sau raws cai: Koj kev tso cai
  4. Kev sib txuas lus ntawm cov ntaub ntawv: Cov ntaub ntawv yuav tsis raug xa mus rau lwm tus neeg thib peb tsuas yog los ntawm kev txiav txim siab raug cai.
  5. Cov ntaub ntawv khaws cia: Cov Ntaub Ntawv khaws tseg los ntawm Occentus Networks (EU)
  6. Txoj Cai: Txhua lub sijhawm koj tuaj yeem txwv, rov qab thiab tshem tawm koj cov ntaub ntawv.