Maimaita halin yanzu vs halin yanzu: bambance -bambance da kamance

na yanzu, hasumiyar lantarki

Ya kammata ka rarrabe tsakanin alternating current da direct current. Dukansu suna da mahimmanci, kuma ana amfani da su ta hanyar masana'antu da kuma a matakin gida don sarrafa dumbin na'urori. Daga injunan masana'antu, zuwa kayan aikin gida, ta hanyar na'urorin hannu, da sauran su abubuwan lantarki.

Bugu da kari, zaku kuma koyi kamanceceniya, tunda suna wanzu tsakanin DC da AC, kazalika labari mai kayatarwa da gwagwarmaya tsakanin shahararrun masu ƙirƙira guda biyu wanda har ya kai ga wasu munanan ayyuka don inganta su ...

Menene rafi?

Kullum Faraday

Una na yanzu kwararar wani abu ne, ko dai rafin ruwa, ko na lantarki. Dangane da yanayin wutar lantarki, abin da ke faruwa da gaske shi ne akwai kwararar electrons da ke ratsa cikin ciki na madugu, ko da ba a gani ba.

Wannan wutar lantarki Zai iya zama iri biyu na asali ...

Menene kai tsaye?

Thomas Alba Edison

Kamar yadda zaku riga kuka sani idan kuna karanta wannan blog akai -akai, da DC, kuma an taƙaita shi a matsayin CC (ko DC a Turanci), shine halin yanzu tare da alkibla guda. Wato, kwararar electrons za ta kasance a cikin takamaiman shugabanci ta hanyar jagora tsakanin maki biyu na yuwuwar daban da cajin lantarki. Idan da za mu zana halin yanzu a kan jadawali, zai bayyana a matsayin ci gaba, layi na yau da kullun.

An samar da wannan wutar lantarki kai tsaye a karon farko a cikin 1800, godiya ga batir da masanin kimiyyar lissafi na Italiya Alessandro Volta ya ƙirƙira. Ba a fahimci yanayin wannan kwararar ta yanzu ba a lokacin, amma babbar nasara ce. A shekarar 1870 da farkon shekarun 1880, an fara samar da wannan wutar lantarkin a cibiyoyin samar da wutar lantarki, don haskaka kamfanoni da gidaje bayan kirkirar kwan fitila. Thomas Edison.

Don kare irin wannan halin yanzu, Edison ya zo don yin nunin gaske, yana ƙoƙarin lalata Nikola Tesla, yana ikirarin cewa halin da yake ciki yanzu yafi hatsari. Don yin wannan, Edison ya zo ne don yin zanga -zangar jama'a ta zaɓar dabbobi daban -daban. A farkon shekarar 1903, mutane dubu sun shaida yadda ya yi wutan lantarki tare da kashe giwa da ƙarfin wutar lantarki na 6600. Duk da haka, a baya an ciyar da giwar karas mai guba don tabbatar da cewa ta mutu. Duk waɗannan abubuwan da suka faru an kira su Yakin yanzu.

Aikace -aikace da juyawa

An maye gurbin wannan madaidaicin kai tsaye ta hanyar canza wutar lantarki, wanda ke da fa'idodi kamar yadda za mu gani. Koyaya, a halin yanzu ana amfani dashi sosai don aikin abubuwan lantarki, kamar kayan aikin gani na gani, kwamfutoci, da sauransu. Don dukkan su suyi aiki daga cibiyar sadarwar wutar lantarki da ke juyawa, ana amfani da na’urorin gyara don canji, kamar masu adaftar da wutar lantarki.

Polarity

Ko da yake a alternating halin yanzu polarity ba shi da mahimmanci, a halin yanzu kai tsaye wani abu ne mai mahimmanci, kuma dole ne a mutunta shi idan da'irar zata yi aiki yadda yakamata kuma kar ta lalace. Canza polarity a cikin DC na iya nufin lalacewar da ba za a iya juyawa ba a wasu lokuta, don haka dole ne ku yi hankali da wannan.

Wannan shine dalilin da yasa aka saba ganin tashoshi ko igiyoyi waɗanda aka yiwa alama da sandar da ta dace, ko launuka don rarrabe shi. Gabaɗaya, ana amfani da ja don madaidaicin sanda (+), kuma baƙar fata don mummunan (-). Wasu da'irori masu rikitarwa na DC na iya ƙara ƙarin launuka kuma.

Menene AC?

Nikola Tesla

La m halin yanzu, a taƙaice kamar CA (ko AC a Turanci), wani nau'in wutar lantarki ne wanda girmansa da alkiblarsa ya bambanta ta hanyar cyclically, a cikin lokaci. Wato, sabanin CC, wanda ya kasance madaidaiciyar layi wanda aka wakilta a cikin jadawali, a yanayin sauyawa ana wakilta shi azaman osusolation na sinusoidal. Adadin cikakken zagayowar daƙiƙa ɗaya zai dogara ne akan yawan zagayowar. Misali, a Turai muna da 50 Hz, ko sau 50 a sakan daya, yayin da a Amurka yana aiki a 60 Hz.

Wannan halin yanzu zai bayyana a cikin 1832, lokacin da Pixii zai ƙirƙiri farko alternator, injin janareta, bisa ƙa'idodin Faraday. Daga baya, Pixii zai ƙara juyawa don samar da madaidaicin madaidaiciya, wanda aka fi amfani da shi a zamanin da. A cikin 1855 an ƙaddara cewa AC ta fi DC girma kuma ta ƙare ta maye gurbin ta.

Sauya fasahar zamani ta kasance ci gaba a Turai, godiya ga aikin Guillaume Duchenne a shekarun 1850. A shekara ta 1876, wani injiniyan Rasha kuma zai ƙirƙiro tsarin hasken wutar lantarki irin na Edison, amma da AC mai ƙarfin lantarki. Kamfanin Ganz Works na Budapest zai fara kera kayan aikin hasken wuta bisa ga waɗannan ƙa'idodin, ban da sauran kayan aiki dangane da wannan halin yanzu.

Injiniyan Sabiya kuma mai ƙirƙira Nikola Tesla, yana ɗaya daga cikin manyan masu kare wannan halin yanzu akan ci gaban Edison. Ya ƙera kuma ya gina madaidaicin injin shigarwa na yanzu, wanda zai iya juyar da makamashin lantarki zuwa makanikai masu juyawa. Bugu da ƙari, wannan ƙwararren zai kuma taimaka wajen daidaita tsarin rarraba wutar ba tare da yin canje -canje ga layin ba.

Bugu da kari, Tesla ya binciki na’urar da Injiniyoyin Turai suka kirkiro mai sauyawa. Godiya gare shi, ana iya canza shi zuwa ƙaramin ƙarfin lantarki, don haka ya sa ya zama mafi aminci ga gidaje, ba tare da buƙatar ta isa cikin adadin da aka samar da ita ba, tunda ɗayan manyan abubuwan tsoro shine haɗarin sa. Wadannan binciken zasu zama farkon kiran Yakin yanzu.

Duk takaddun da suka shafi Nikola Tesla's CA an sanya su ga kamfanin Wutar lantarki ta yamma, don haɓaka babban jari da ci gaba da ayyukan da suka danganci wannan yanayin. Bayan wannan, watsawa na farko na CA ba zai ɗauki dogon lokaci ba, yana faruwa a 1891. Hakan zai faru a Telluride (Colorado), bayan 'yan watanni kuma a Turai, daga Lauffen zuwa Frankfurt (Jamus).

Kamar yadda AC ta yi nasara kuma ta bazu ko'ina cikin duniya, Thomas Edison ya ci gaba da ba da shawara don halin yanzu, wani abu da zai kashe masa matsayinsa a kamfanin. Edison lantarki (wanda yanzu ake kira General Electric), wanda shi da kansa ya kafa ...

Aplicaciones

Ana amfani da alternating current don masana'antu da na gida, shine wanda ke tafiya ta layukan wutar lantarki don kawo wutar lantarki a duk sassan duniya. Yana iya sarrafa kayan aikin gida, injin, injinan masana'antu, tsarin firiji, da ƙari mai yawa.

Polarity

Kamar yadda na ambata a baya, lokacin da kuka haɗa a toshe, ba ku yin taka tsantsan yadda kuke sanya shi kamar yadda zai yi aiki a kowane hali. Wannan shi ne saboda raƙuman ruwa na jujjuyawar ruwa, saboda zai canza. Koyaya, don shigarwa na al'ada, akwai kuma hanyoyin da za a rarrabe wayoyi, da sauransu. Gabaɗaya kuna da waya mai launin rawaya / kore wanda shine ƙasa, shuɗi ko farin waya zai zama tsaka tsaki, kuma launin ruwan kasa ko baƙi zai zama lokaci.

DC vs AC: fa'idodi da rashin amfani

cc vs ca

Duk kogunan har yanzu ana amfani da su a yau, kamar yadda suke yi fa'idarsa da rashin dacewarta. Alal misali:

  • Alternating current yana da sauƙin sauyawa, wani abu da baya faruwa da kai tsaye.
  • Don canza ƙarfin lantarki, a cikin madaidaicin halin yanzu kawai dole ne ku yi amfani da mai juyawa, yayin da kai tsaye kuna buƙatar haɗa dynamos ko janareto a cikin jerin, wanda ba shi da amfani.
  • Za'a iya rarraba madaidaicin halin yanzu a kan nisa mai nisa tare da ƙarancin ƙarfin halin yanzu, rasa kaɗan a cikin yanayin zafi saboda tasirin Joule da sauran tasirin kamar raƙuman ruwa ko hysteresis. Yayin da DC ke da asara mai yawa, kuma zai zama dole a sami adadi mai yawa na wutar lantarki kusa da wuraren da ake buƙata.

Juyin AC / DC

ATX tushen

(duba wutar lantarki)


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