Qhov Sib Txawv Ntawm (Lwm Yam Tam Sim No & Ncaj Ncees Tam Sim No): 13 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

Txhua leej txhua tus paub tias hluav taws xob feem ntau yog Dc, tab sis li cas txog lwm hom hluav taws xob? Koj puas paub Ac? AC sawv rau dab tsi? Puas yog nws siv tau DC? Hauv txoj kev tshawb fawb no peb yuav paub qhov sib txawv ntawm cov hom hluav taws xob, cov peev txheej, daim ntawv thov thiab keeb kwm ntawm kev ua tsov ua rog ntawm lawv thiab peb yuav sim muab xaus rau kev ua tsov rog ntawd kom peb pib

Keeb Kwm Tsov Rog (AC zoo dua, Tsis muaj Dc zoo tag nrho) Zoo siab txais tos rau xyoo 1880s. Muaj kev sib ntaus sib tua loj heev los ntawm Direct Current (DC) thiab Alternating Current (AC). Kev Tsov Rog Ntawm Tam Sim No, zoo li lwm qhov kev tsis sib haum xeeb hauv tib neeg keeb kwm, muaj cov tswv yim sib tw ntawm yuav ua li cas thiaj xa hluav taws xob zoo tshaj plaws rau ntiaj teb. Thiab ntawm chav kawm, muaj tuj ntawm cov nyiaj yuav tsum tau ua raws txoj kev. Yog li Thomas Edison thiab nws pawg tub rog DC tuav ruaj khov, lossis puas yog George Westinghouse thiab nws AC Armada thov kom yeej? Nov yog kev sib ntaus sib tua rau yav tom ntej ntawm tib neeg, nrog kev ua phem ntau yam koom nrog. Cia saib seb nws poob mus li cas. Txawm hais tias txhua yam nws siv tau zoo hauv tej yam xws li cov xov tooj, xov tooj cua, teeb nyem, thiab txawm tias lub tsheb hluav taws xob, qhov ncaj qha tam sim no muaj peb qhov kev txwv loj:

1) Siab Voltages. Yog tias koj xav tau cov hluav taws xob siab, zoo li nws yuav siv lub hwj chim rau lub tub yees lossis lub tshuab ntxuav tais diav, ces DC tsis ua haujlwm. 2) Ntev Mus. DC kuj tsis tuaj yeem mus kev deb ntev yam tsis muaj kua txiv.

3) Cov Hwj Huam Huv Ntau. Vim tias qhov luv luv uas DC tuaj yeem taug kev, koj yuav tsum tau teeb tsa ntau lub zog tsim hluav taws xob thoob plaws lub tebchaws kom tau txais nws nyob hauv tib neeg lub tsev. Qhov no tso cov pej xeem nyob hauv cov chaw nyob deb nroog hauv qhov kev khi me ntsis.

Cov kev txwv no yog teeb meem loj rau Edison raws li Kev Tsov Rog Thoob Ntiaj Teb txuas ntxiv mus. Yuav ua li cas nws thiaj muaj hwj chim thoob plaws lub nroog, tsawg dua hauv lub tebchaws, thaum DC qhov hluav taws xob tuaj yeem taug kev deb li ib mais yam tsis tau ntws tawm? Edison qhov kev daws teeb meem yog kom muaj DC lub tshuab fais fab hauv txhua ntu ntawm ib lub nroog, thiab txawm tias nyob hauv ib puag ncig. Thiab nrog 121 Edison cov chaw siv hluav taws xob tawg thoob plaws Tebchaws Meskas, Tesla ntseeg tias kev hloov pauv tam sim no (lossis AC) yog qhov kev daws teeb meem no.

Kev hloov pauv tam sim no thim rov qab cov lus qhia qee zaum ntawm ob - 60 hauv Asmeskas - thiab tuaj yeem hloov pauv mus rau qhov sib txawv ntawm qhov sib txawv yooj yim siv qhov txaus ntshai, txawm tias mus txog tam sim no transformer [1]. Edison, tsis xav plam cov cai tau txais los ntawm nws daim ntawv tso cai tam sim no ncaj qha, pib phiaj xwm kom tsis lees paub qhov hloov pauv tam sim no. Nws tshaj tawm cov ntaub ntawv tsis raug hais tias kev hloov pauv tam sim no tau nyob deb tshaj rau cov pej xeem siv hluav taws xob tsis zoo siv hluav taws xob hloov pauv los ua pov thawj nws cov ntsiab lus [2]

Kauj Ruam 1: DC Tam Sim No

DC Tam Sim No

Txhais:

yog ib qho kev taw qhia lossis ib txoj kev khiav hluav taws xob. Lub tshuab hluav taws xob hluav taws xob yog qhov piv txwv tseem ceeb ntawm DC lub zog. Ncaj qha tam sim no tuaj yeem ntws los ntawm tus neeg xyuas pib xws li xaim, tab sis tseem tuaj yeem ntws los ntawm cov khoom siv hluav taws xob, cov rwb thaiv tsev, lossis txawm tias dhau los ntawm lub tshuab nqus tsev zoo li hauv cov tshuab hluav taws xob lossis ion. Cov hluav taws xob tam sim no ntws mus rau qhov tsis tu ncua, qhov txawv ntawm qhov hloov pauv tam sim no (AC). Lub sij hawm yav tas los siv rau hom tam sim no yog galvanic tam sim no [3].

Kauj Ruam 2: Ntsuas Cov Cuab Yeej

Lub DC tam sim no tuaj yeem ntsuas los ntawm ib lub multimeter

Lub multimeter yog:

txuas nrog hauv kab nrog lub nra. Dub (COM) sojntsuam ntawm lub multimeter txuas nrog lub davhlau ya nyob twg tsis zoo ntawm lub roj teeb. Qhov kev sojntsuam zoo (sojntsuam liab) txuas nrog lub nra. Lub davhlau ya nyob twg zoo ntawm lub roj teeb txuas nrog lub thauj khoom raws li qhia hauv daim duab (3).

Kauj Ruam 3: Cov ntawv thov

Ntau yam haujlwm tau teev tseg hauv qab no:

● DC cov khoom siv hauv ntau daim ntawv thov qis qis xws li them lub roj teeb txawb. Hauv tsev thiab chaw ua lag luam, DC siv rau teeb pom kev thaum muaj xwm ceev, lub koob yees duab ruaj ntseg, thiab TV, thiab lwm yam.

● Hauv tsheb, lub roj teeb tau siv los pib lub cav, teeb thiab lub tshuab hluav taws. Lub tsheb hluav taws xob khiav ntawm lub roj teeb (DC tam sim no).

● Hauv kev sib txuas lus, siv 48V DC khoom siv. Feem ntau, nws siv ib txoj hlua hlau rau kev sib txuas lus thiab siv hauv av rau txoj kev rov qab los. Feem ntau ntawm cov cuab yeej sib txuas lus sib txuas ua haujlwm ntawm DC tam sim no.

● Cov hluav taws xob hluav taws xob siab tuaj yeem ua tau nrog HVDC Cov kab sib kis. Muaj ntau qhov zoo ntawm HVDC Kev xa cov tshuab hla cov pa HVAC Cov kab ke xa mus. HVDC system muaj txiaj ntsig zoo dua li HVAC system, vim nws tsis muaj lub zog poob vim qhov cuam tshuam los ntawm corona lossis tawv nqaij.

● Hauv lub hnub ci fais fab nroj tsuag, lub zog tsim tawm hauv daim ntawv DC tam sim no.

● Lub zog AC tsis tuaj yeem khaws cia zoo li DC. Yog li, txhawm rau khaws lub zog hluav taws xob, DC ib txwm siv.

● Hauv txoj kab ke traction, lub tshuab tsheb ciav hlau tau khiav ntawm DC tam sim no. Hauv lub tshuab hluav taws xob diesel, lub kiv cua, teeb, AC, thiab lub qhov hluav taws xob tau ua haujlwm ntawm DC tam sim no [4].

Kauj Ruam 4: AC Tam Sim No

Txhais:

yog hluav taws xob tam sim no uas ib txwm thim rov qab kev taw qhia, sib piv rau qhov ncaj qha tam sim no (DC) uas ntws tsuas yog hauv ib qho kev taw qhia. Kev hloov pauv tam sim no yog daim ntawv uas xa hluav taws xob rau cov lag luam thiab cov tsev nyob

Kauj Ruam 5: Ntsuas Cov Cuab Yeej

Nws tuaj yeem ntsuas los ntawm multimeter raws li DC tam sim no.

Ib qho ammeter yuav tsum tau txuas nrog hauv kab nrog Circuit Court los ntsuas. Qee qhov no ua rau nyuaj, vim tias koj yuav tsum qhib lub Circuit Court thiab ntxig lub ammeter. Muaj ib txoj hauv kev ntsuas tam sim no yam tsis tau qhib lub Circuit Court, yog tias koj siv Clamp Meter. Txhawm rau ntsuas tam sim no nrog cov ntsuas no, txhua yam koj yuav tsum ua yog txhawm rau nws ib ncig ntawm cov xaim kom ntsuas, yam tsis tau qhib lub Circuit Court. Ceev faj kom tsis txhob muaj hluav taws xob poob lossis luv Circuit Court, thaum lub Circuit Court yuav muaj zog.

Kauj Ruam 6: Cov ntawv thov

AC daws qhov kev txwv loj nrog DC

● Ua thiab thauj hluav taws xob.

● AC tam sim no mus tau zoo nyob rau luv- thiab nruab nrab-nrug deb, nrog rau kev poob hwj chim me ntsis

● Qhov txiaj ntsig tseem ceeb ntawm kev hloov pauv tam sim no yog nws qhov hluav taws xob tuaj yeem hloov kho tau yooj yim siv lub tshuab hloov pauv, uas tso cai rau lub zog xa mus rau qhov hluav taws xob siab heev ua ntej yuav raug txo qis kom nyab xeeb dua rau kev lag luam thiab kev siv nyob hauv qhov no txo qis kev poob peev

Kauj Ruam 7: AC Generation

Txhawm rau tsim AC hauv cov txheej kav dej, peb txuas cov tshuab

crank rau lub piston uas txav dej hauv cov kav dej rov qab los (peb "hloov pauv" tam sim no). Daim ntawv ceeb toom tias cov pinched ntu ntawm cov yeeb nkab tseem muab kev tiv thaiv rau cov dej ntws tsis hais txog kev khiav dej num li cas. F igure (8): Ac Voltage generator. Qee lub tshuab hluav taws xob AC tuaj yeem muaj ntau dua ib lub kauj hauv cov tub ntxhais armature thiab txhua lub kauj ua rau muaj kev sib hloov emf. Hauv cov tshuab hluav taws xob no, ntau dua ib qho emf tau tsim. Yog li lawv tau hu ua poly-phase generators Hauv qhov yooj yim kev tsim ntawm peb-theem AC generator, cov tub ntxhais armature muaj 6 qhov qhib, txiav ntawm nws sab hauv. Txhua qhov yog 60 ° deb ntawm ib leeg. Rau rau armature conductors tau teeb tsa hauv cov kab no. Cov neeg ua haujlwm 1 thiab 4 tau koom ua ke los ua cov kauj 1. Cov neeg ua haujlwm 3 thiab 6 tsim cov kauj 2 thaum cov neeg ua haujlwm 5 thiab 2 tsim cov kauj 3. Yog li, cov kauj no yog cov duab plaub thiab zoo ib yam 120 ° sib nrug ntawm ib leeg

Kauj Ruam 8: AC Transformer

AC hloov pauv yog cov khoom siv hluav taws xob uas siv los hloov pauv

qhov hluav taws xob hloov pauv tam sim no (AC) rau (DC) cov hluav taws xob hluav taws xob. Ib qhov txiaj ntsig zoo ntawm AC hla DC rau kev faib hluav taws xob yog tias nws yooj yim dua rau theem qib hluav taws xob nce thiab nqis nrog AC dua li DC. Rau kev xa hluav taws xob ntev-nrug nws yog qhov xav tau kom siv qhov hluav taws xob siab thiab me me tam sim no li sai tau; qhov no txo R*I2 poob hauv cov kab sib kis, thiab cov xov hlau me tuaj yeem siv tau, txuag cov khoom siv

Kauj Ruam 9: Hloov AC rau DC

Siv ib qho ntawm cov kab hluav taws xob rectifier (ib nrab nthwv dej, puv nthwv dej lossis choj txhim kho) kom hloov pauv

AC voltage rau DC. … Choj rectifiers yuav hloov nws mus rau hauv DC, yuav tsuas muaj 2 diodes ua haujlwm nyob rau txhua lub sijhawm yog li qhov hluav taws xob ntawm lub tshuab hluav taws xob yuav poob los ntawm 1.4v (0.7 rau txhua lub diode).

Kauj Ruam 10: Hom Rectifiers

Kauj ruam 11: DC rau DC Converter

yog hluav taws xob hluav taws xob lossis khoom siv hluav taws xob uas hloov pauv a

qhov ncaj qha tam sim no (DC) los ntawm qib ib qib mus rau lwm qhov. Nws yog hom hluav taws xob hloov hluav taws xob. Cov theem hluav taws xob muaj los ntawm qis heev (roj teeb me me) mus rau siab heev (xa hluav taws xob muaj zog loj)

Kauj Ruam 12: Ua kom tiav

Los ntawm txoj kev tshawb fawb no peb xaus tias ob qho AC thiab DC muaj ntau daim ntawv thov, tsis muaj leej twg

zoo dua li lwm tus, txhua tus ntawm lawv muaj nws daim ntawv thov. Ua tsaug rau Tesla thiab Edison los tsim cov hluav taws xob no, kuj ua tsaug rau thev naus laus zis uas pom txoj hauv kev hloov pauv ntawm lawv

Kauj Ruam 13: Cov neeg ua tim khawv

[1] -

[2]-https://www.energy.gov/articles/war-currents-ac-v… 0late%201880s,%20War%20of%20the%20Currents. & Text = Direct%20current%20is%20not%20ea sily,%20solution%20to%20this%20problem

[3]- Cov Khoom Siv Hluav Taws Xob & Cov Hluav Taws Xob Tawm

[4]-https://nanopdf.com/download/direct-current-sourc…

[5]-https://nanopdf.com/download/direct-current-sourc…