Fara yanzu

Lokacin da kunshe a cikin aiki na wani na'ura, inji ko na'urar na tsawon lokaci a cikin abin da akwai matakai, wanda ake kira da ba na kullum ko launchers. Mafi shahara misalai na rayuwa - a cire tafi, bari mu ce, wata ɗora Kwatancen truck, jirgin kasa, quite a fili yana nuna cewa da farko ikon goyon baya mafi yawa ana bukata fiye da kokarin a nan gaba.

A wannan mamaki faruwa a lantarki na'urorin: fitilu, Motors, electromagnets, da dai sauransu An fara tafiyar matakai a cikin wadannan na'urorin dogara da jihar aiki abubuwa: filament fitilu, Jihar magnetization na da zuciyar wani electromagnet nada, da mataki na ionization na interelectrode rata a gas sallama fitilu , da dai sauransu Alal misali, ka yi la'akari da filament na haske kwan fitila. Sananne ne cewa a cikin sanyi jihar, yana mai yawa ƙananan juriya fiye da lokacin da shi
mai tsanani har zuwa 1000 digiri. a cikin aiki yanayin. Gwada yin lissafi da juriya
filament ga 100-Watt kwan fitila - game da 490 ohms, kuma ohmmeter auna a rago jihar shi ne kasa da 50 ohms. Kuma yanzu mafi ban sha'awa - ƙidaya inrush halin yanzu, kuma za ku fahimci dalilin da ya sa kwararan fitila suna lit lokacin kunna.

Sai dai itace cewa a lokacin da na yanzu ne ya juya a kan ya kai 4-5 A, wanda shi ne ikon amfani da fiye da 1 kW. Saboda haka me ya sa aka mai 100-Watt haske kwararan fitila ba ƙona, "ba tare da togiya"? Eh, saboda, dumama, haske kwan fitila filament yana
kara juriya, wanda a cikin kwari jihar zama m, wani babban na farko darajar, kuma ya takaita aiki halin yanzu na kusa 0.5 A.

Electric Motors da fadi da aikace-aikace a cikin art, don haka ilimi daga cikin halaye na tashinsu halaye ne da muhimmanci ga yin aiki da kyau eletroprivodov. Slip da karfin juyi a kan shaft - babban shafi na fara halin yanzu saituna. Da farko ta ɗaure da electromagnetic filin tare da juyawa gudu da kuma na'ura mai juyi gudu tare da wani sa gudun rage-rage daga 1 zuwa m darajar, da kuma na biyu da kayyade inji load a kan shaft, matsakaicin a farkon farawa-up da kuma bayan wani maras cikakken hanzari. Asynchronous mota a lokacin gudu-up da m gidan wuta short-circuited sakandare Tuddan. Saboda da kananan
Resistance fara halin yanzu na mota abruptly ya kai wani tenfold wuce haddi na ta rated darajar.

yanzu wadata da na'ura mai juyi windings results a jikewa da zuciyar karuwa a cikin Magnetic filin, bayyanar da wani emf kai-inductance, wadda take kaiwa zuwa wani karuwa a inductive
kewaye da juriya. A na'ura mai juyi yana farawa kafin a juya, da kuma zamewa rabo rage-rage, Ina nufin, Yana accelerates da engine. A wannan yanayin da fara halin yanzu tare da tashin juriya rage-rage ga wani kwari darajar.

The matsaloli sa da ya faru na ƙãra inrush igiyoyin bayyana
saboda zafi fiye da kima na lantarki Motors, da obalodi na lantarki networks a lokacin
fara-up, da ya faru na inji buga lodi a haɗe inji kamar giya. Akwai biyu azuzuwan na na'urorin da cewa warware wadannan tambayoyi a cikin zamani da fasaha - taushi starters da kuma mita converters.

Su zabi - yana da wani injiniya matsala tare da bincike na da yawa sarrafawa
halaye. Load a real yanayi na yin amfani da wutar lantarki Motors ne zuwa kashi biyu kungiyoyin: famfo-fan da general. Soft starters aka fi dacewa amfani ga lodi fan naúrar. Irin wannan gwamnoni iyakance inrush yanzu zuwa wani matakin ba fi 2 maras dabi'u, maimakon 5-10 sau da talakawa farko-up, ta canza irin ƙarfin lantarki windings.

A mafi yadu a yi amfani da masana'antu su ne lantarki Motors na alternating halin yanzu. Duk da haka, su sauki zane da kuma low cost ne gaban shugabanci - nauyi farawa yanayin da ake alleviated ta hanyar mita converters. A musamman m alama na mita
transducer support inrush halin yanzu shigar da mota domin
lokaci mai tsawo - minti daya ko fiye. A mafi kyau misalai na zamani converters ne na fasaha da na'urorin aiki ba kawai fara iko tsari, amma kuma inganta farkon kowace yi sharudda: da girma da kuma dagewa da fara halin yanzu, da zamiya shaft karfin juyi, da ganiya ikon factor, da dai sauransu