Molao-motheo oa ho qhibiliha ha sebōpi: litlhoko tsa rectifier trigger circuit

1. Bakeng sa maqhubu le mohato oa sekhahla, re sebelisa potoloho ea borokho ea mekhahlelo e meraro e laoloang ka botlalo, e arolelanang likarolo tse tšeletseng tsa thyristor. Ka hona, potoloho ea trigger e hlokeha ho fana ka lipontšo tse tšeletseng tsa nako le nako (Vg, Vg2, Vg3, Vg4, Vg5, V g6) ‘Me kamano ea karolo ea li-pulse tse tšeletseng tse qalang ke 60 ° e fapaneng ka tatellano.

2. Bophara ba pulse le moeli o ka sehloohong: ha ho hlahlojoa molao-motheo oa ts’ebetso ea potoloho ea borokho ba mekhahlelo e meraro e laoloang ka ho feletseng, ho boleloa hore borokho bo laoloang ka ho feletseng bo tlameha ho ba le li-thyristors tse peli tse butsoeng ka nako leha e le efe, e hlokang potoloho e ‘ngoe le e’ ngoe (360°) Ka hare ho eona, ho tlameha ho be le methapo e ‘meli feela ka motsotso o le mong. Ka hona, bophara ba sekhahla se seng le se seng se lokela ho ba seholo ho feta T / 60 = 60 °, ‘me bophara ba sekhahla sa trigger ha sea lokela ho ba se seholo haholo. Ka kakaretso, ho lebelletsoe hore e tla ba ka tlase ho T/3/120°. E le ho qala ka mokhoa o nepahetseng, ho hlokahala hore ho be le moepa o lekaneng, empa hobane maqhubu a trigger pulse tsamaisong e tšoanang ea rectifier a tlaase (50Hz) le bophara ba pulse bo boholo (bo boholo ho feta T / 6), haeba likarolo tsa thyristor ha li kopane letotong , Tlhokahalo ea moeli o ka sehloohong oa sekhahla sa trigger ha se phahame, hafeela e ka ba tlase ho 0.3ms.

3. Matla a sekhahla, e le ho etsa hore thyristor e khone ho buloa tlas’a tšebeliso ea mokokotlo oa mokokotlo, ho hlokahala hore ho be le matla a itseng. Bophahamo ba motlakase oa trigger le boholo ba motlakase oa motlakase oa motlakase oa taolo o hlokoang ke li-thyristors tsa bokhoni bo fapaneng li fapane.

Ka mohlala, matla a phahameng a trigger voltage a KP200A ke 4V, boholo ba motlakase oa motlakase ke 200mA, matla a phahameng a lumellehang a pele a pola ea taolo ke 10V, ‘me boholo bo amohelehang ba palo ea taolo ke 2A.

1. Phetoho ea mohato, molemong oa ho nolofalletsa motlakase oa potoloho ea rectifier ho fihlela litlhoko tsa lets’oao tsa “current limit”, “voltage limit”, “overcurrent”, “overvoltage”, joalo-joalo, ho hlokahala hore mokhahlelo oa “rectifier pulse” o hlahisoe ke lebelo la “trigger” le ka ba ka har’a “0°～150° ”Ka har’a boholo ba phetoho.