Na u batla ho tseba haholoanyane bakeng sa mosebetsi oaBraking Resistorka frequency converter?
Haeba ho joalo, ka kopo sheba lintlha tse ka tlase.
Ka har'a sistimi e feto-fetohang ea ho khanna, enjene e theoleloa ebe e emisoa ka ho fokotsa lebelo butle.Nakong ea ho fokotseha ha maqhubu, lebelo la synchronous la motor le fokotseha, empa ka lebaka la inertia ea mochine, lebelo la rotor ea motlakase le lula le sa fetohe.Kaha matla a potoloho ea DC a ke ke a khutlisetsoa ho grid ka borokho ba rectifier, e ka itšetleha feela ka converter frequency (mofetoleli oa maqhubu a nka karolo ea matla ka capacitor ea eona).Leha likarolo tse ling li sebelisa matla, capacitor e ntse e na le pokello ea litefiso tsa nakoana, e theha "boost voltage" e eketsang motlakase oa DC.Matla a feteletseng a DC a ka baka tšenyo likarolong tse fapaneng.
Ka hona, ha mojaro o le boemong ba ho qhoqhoa ha jenereithara, mehato e hlokahalang e tlameha ho nkoa ho sebetsana le matla ana a tsosolosang.Mohanyetsi oa crane potolohong hangata o bapala karolo ea ho arola motlakase le shunt ea hajoale.Bakeng sa matshwao, matshwao a AC le DC a ka feta ho bahanyetsi.
Ho na le mekhoa e 'meli ea ho sebetsana le matla a ho tsosolosa:
1. Ts'ebetso ea ho senya matla a matla Ho sebelisa matla a matla ke ho eketsa karolo ea discharge resistors ka lehlakoreng la DC la maqhubu a feto-fetohang ho senya matla a motlakase a tsosolositsoeng ka har'a mochine o thibelang matla bakeng sa braking.Ena ke mokhoa oa ho sebetsana le matla a tsosolosang ka ho toba, kaha o sebelisa matla a tsosolosang 'me o o fetola matla a mocheso ka potoloho e inehetseng ea ho senya matla.Ka hona, e boetse e bitsoa "resistance braking", e nang le unit ea braking le abraking resistor.Setsi sa Braking Mosebetsi oa mochine oa braking ke ho bulela potoloho ea tšebeliso ea matla ha motlakase oa potoloho ea DC Ud o feta moeli o boletsoeng, e le hore potoloho ea DC e lokolle matla ka mokhoa oa mocheso ka mochine oa ho thibela braking.Mohanyetsi o nang le khanyetso ea kamehla o bitsoa mohanyetsi o tsitsitseng, 'me mohanyetsi o nang le khanyetso e fapaneng o bitsoa potentiometer kapa variable resistor kapa Rheostat.
Li-unit tsa 2.Braking li ka aroloa ka mefuta e hahiloeng le e ka ntle.Ea pele e loketse li-drive frequency frequency frequency drive tsa matla a tlase, 'me ea morao-rao e loketse li-drive tsa maqhubu a matla a phahameng kapa litlhoko tse khethehileng tsa braking.Ha e le hantle, ha ho na phapang pakeng tsa tse peli.Ka bobeli li sebelisoa e le "li-switches" ho hokela li-resistors tsa braking, 'me li entsoe ka li-transistors tsa motlakase, sampole ea voltage le li-circuits tsa papiso le li-circuits tsa drive.
Braking resistor e sebetsa e le mokhoa oa hore matla a ho inchafatsa a enjene a felisoe ka mokhoa oa matla a mocheso, 'me a kenyelletsa likarolo tse peli tsa bohlokoa: boleng ba ho hanyetsa le matla a matla.Mefuta e sebelisoang hangata boenjiniere e kenyelletsa li-resipples tsa ripple le li-resistors tsa aluminium (Al) alloy.Ea pele e sebelisa sebaka se otlolohileng sa masenke ho ntlafatsa phallo ea mocheso, ho fokotsa ho kenella ha likokoana-hloko, 'me e sebelisa seaparo sa inorganic se hanyetsanang le lelakabe ho sireletsa terata ea ho hanyetsa botsofali ka katleho le ho lelefatsa bophelo ba eona ba ts'ebeletso.Ho hanyetsa boemo ba leholimo ba morao-rao le ho hanyetsa ho sisinyeha ho molemo ho feta li-resistars tsa setso tsa ceramic, 'me e sebelisoa haholo libakeng tse thata tsa taolo ea indasteri e nang le litlhoko tse phahameng.Li bonolo ho li kenya ka thata 'me li ka ba le lisebelisoa tse eketsehileng tsa mocheso (ho fokotsa mocheso o hlahisoang nakong ea ts'ebetso ea sesebelisoa), ho fana ka ponahalo e khahlehang.
