Sake Kama rabo daga gidan wuta

Dalili na aiki da gidan wuta kayyade sabon abu daga electromagnetic shigar da. A gidan wuta core aka hada da mutum karfe faranti, taru a cikin rufaffiyar firam na wani nau'i. A core an sanya biyu Tuddan S₁ da S₂ da yawan jũya, kuma w₁ w₂. A windings da kadan juriya da kuma high inductance.

Zartar biyu na ƙyallen maƙalawa a Tuddan S₁, wanda muke kira primary alternating ƙarfin lantarki U₁. By Tuddan izinin alternating halin yanzu na, wanda magnetize da zuciyar karfe Ta ajiye shi a cikin alternating Magnetic juyi. Magnetizing halin yanzu mataki na gwargwado ga yawan ampere-jũya (Iw₁).

Kamar yadda na yanzu Yunƙurin zai kara Magnetic juyi a cikin zuciyar, wadda za ta janye da canji a cikin jũya daga nada electromotive karfi na kai-shigar da. Da zarar ya kai gare shi da aiyuka irin ƙarfin lantarki, a halin yanzu karuwa a primary kewaye tsaya a nan ba. Saboda haka, a cikin gidan wuta farko Tuddan kewaye zai yi aiki U₁ amfani ƙarfin lantarki da kuma electromotive karfi na kai-shigar da E₁. A wannan yanayin da irin ƙarfin lantarki U₁ E₁ mafi girma da adadin da irin ƙarfin lantarki drop a Tuddan ne kadan. Saboda haka, za mu iya kamar rubuta:

U₁ = E₁.

Alternating Magnetic juyi abin da ke faruwa a cikin gidan wuta core, ya wuce ma a kan ta secondary Tuddan coils, kowane nada m nada irin wannan cewa girma da electromotive karfi a matsayin farko Tuddan na kowane nada.

Kahu a kan gaskiyar cewa yawan farko jũya daidai w₁, da kuma na biyu - w₂, an inducted cikin karfi da suka kasance, da bi, su daidaita zuwa:

E₁ = w₁e,

E₂ = w₂e,

inda e - electromotive karfi generated a nada.

A irin ƙarfin lantarki a iyakar da U₂ bude Tuddan electromotive karfi ne daidai da shi, watau.:

U₂ = E₂.

Saboda haka, muna iya cewa irin ƙarfin lantarki a ranar biyu na ƙyallen maƙalawa a gidan wuta farko Tuddan haka yana nufin da darajar da irin ƙarfin lantarki a iyakar da biyu nada, yawan farko jũya dangantaka da yawan jũya a cikin sakandare Tuddan:

(U₁ / U₂) = (w₁ / w₂) = k.

Constant k - yanzu gidan wuta rabo.

A wannan yanayin, idan ya zama dole mu ƙara ƙarfin lantarki, shirya da sakandare Tuddan tare da ƙara yawan jũya (abin da ake kira mataki-up gidan wuta). a cikin akwati inda ya zama dole su runtse da irin ƙarfin lantarki, da sakandare Tuddan na gidan wuta dauka tare da wani karami yawan jũya (taka-saukar gidan wuta). A gidan wuta za su iya aiki kamar yadda biyu a mataki-up canji rabo, da kuma yadda wani mataki-saukar, dangane da wanda aka yi amfani a matsayin farko Tuddan.

Yayin da sakandare Tuddan ne bude (akwai wani AC). A gidan wuta ne idling. Kamar wancan shi jan kadan makamashi, tun da yanzu, magnetizing da baƙin ƙarfe core saboda babban inductance nada ne kadan. Energy watsa zuwa secondary kewaye daga farko yayin da offline. Wannan kwarewa samar da damar da za su koyi da canji rabo, da juriya na rago da kuma na yanzu gidan wuta.

Gidan wuta kaya, a giciye ta hanyar resistor kewaye sakandare Tuddan. Yana zai yanzu tafi a kan da shigar da yanzu, denoted da wasika I₂. Wannan halin yanzu, bisa ga Lenz ta dokar za ta haifar da wata rage daga cikin Magnetic juyi a cikin zuciyar. Duk da haka, da weakening na Magnetic juyi a cikin zuciyar zai rage kai-shigar da electromotive karfi a cikin primary Tuddan kuma zuwa wani rashin daidaituwa tsakanin wannan karfi da kuma irin ƙarfin lantarki E₁ U₁, ba ta da janareta ga primary Tuddan. A sakamakon haka, da farko Tuddan halin yanzu ƙaruwa zuwa wasu darajar I₁ da kuma zama daidai da na + I₁. Saboda karuwa da na yanzu Magnetic juyi a cikin gidan wuta core zai kara zuwa ta gabata darajar da rashin daidaituwa tsakanin U₁ da E₁ aka mayar da sake. Saboda haka, bayyanar da sakandare halin yanzu I₂ haddasa karuwa a halin yanzu a cikin primary Tuddan da darajar I₁, wanda detects da kaya halin yanzu na farko Tuddan na gidan wuta.

Lokacin da kaya daga cikin gidan wuta da aka yi da ci gaba da yaduwar makamashi a cikin sakandare kewaye daga farko. By dokar kiyayewa da canji na makamashi, halin yanzu a cikin primary kewaye ikon ne daidai da na yanzu a cikin sakandare ikon kewaye. saboda haka, dole ne aiki daidaito:

I₁ U₁ = I₂U₂.

A gaskiya, wannan daidaici ba a lura, kamar yadda a cikin gidan wuta akwai hasarori, ko kananan. A canji rabo ne game da 94-99%.