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Umqondo ojwayelekile wesithando sokushisa sokungeniswa

Umqondo ojwayelekile we isithando sokushisa sangaphakathi

1. Ukunikezwa kwamandla kwesithando sokushisa kwe-induction yi-current phase alternating current, i-frequency ingu-50Hz, futhi i-voltage yomugqa engenayo ingu-380V. Ezithandweni zokushisa zokungenisa amandla aphezulu, i-voltage yokufaka ingaba ngu-660V, 750V, 950V, njll.

2. Isithando sokushisa sokufakelwa kwe-induction sinikwe amandla yi-transformer, engahlukaniswa zibe izinhlobo ezimbili: ama-transformers omile kanye nama-oil-cooled transformers ngokusho kwemidiya ehlukene yokupholisa. Kwe isithando sokushisa sangaphakathi embonini, sincoma ama-rectifier transformer apholile ngamafutha.

3. Ngaphansi kwe-voltage elinganisiwe noma umthwalo olinganiselwe, amandla okukhiphayo wesithando sokushisa sokungeniswa angalungiswa ngokushelela nangokuqhubekayo, futhi ububanzi bokulungisa bungu-5% -100% wamandla alinganiselwe;

4. Ikhabhinethi yokunikeza amandla okuguqulwa kwemvamisa yesithando sokushisa sokungeniswa siyingxenye eyinhloko, esakhiwe izingxenye ezimbili: isilungisi/i-inverter. Umsebenzi wengxenye yokubuyisela kuyinqubo yokuguqula i-50HZ yamanje eshintshanayo ibe yamanje eshayayo eqondile. Ngokwenani lamapulse okulungisa, ingahlukaniswa ibe i-6-pulse rectification, 12-pulse rectification, kanye ne-24-pulse rectification. Ngemuva kokulungiswa, i-reactor eshelelayo izoxhunywa ochungechungeni ngesigxobo esihle. Umsebenzi wengxenye ye-inverter ukuguqula amandla akhona aqondile akhiqizwa ukulungiswa abe yi-intermediate frequency alternating current bese unikeza amandla kukhoyili yokungeniswa.

5. Lapho i-voltage ephumayo yesithando sokushisa esingeniswayo idlula izikhathi ezingu-1.1-1.2 we-voltage enkulu yokuphumayo noma idlula inani lokusetha i-voltage, uhlelo lokuvikela u-overvoltage luzokwenza ukuthi idivayisi ime ngokuzenzakalelayo futhi ikhiphe isignali ye-alamu – khanyisa ukukhanya kwenkomba ye-overvoltage yebhokisi lensimbi.

6. Ikhabhinethi ye-capacitor yesithando sokushisa sokungeniswa iyisisetshenziswa esinikeza isinxephezelo samandla asebenzayo kukhoyili yokungeniswa. Kungaqondakala kalula ukuthi inani le-capacitance lithinta ngqo amandla emishini. I-parallel resonance induction heat furnace inohlobo olulodwa kuphela lwe-resonance capacitor (i-electric heat capacitor), kuyilapho isithando somlilo esishisayo sochungechunge sine-filter capacitor ngaphezu kwe-resonance capacitor (i-electric heat capacitor).

7. Uma ibhuloho le-inverter yesithando sokushisa sokushisa i-induction ixhunywe ngokuqondile futhi ifushane, isistimu yokuvikela izothatha isinyathelo ngokushesha ukuze imise idivayisi ngokuzenzakalelayo, futhi ithumele isignali ye-overcurrent inkomba – khanyisa ukukhanya kwenkomba ye-overcurrent yebhokisi lensimbi.

8. Lapho ingcindezi yokusebenza yesistimu yokupholisa amanzi yesithando sokushisa sokungeniswa ingaphansi kwenani elithile, imishini yokushisa yokungeniswa, ukucisha imishini yokwelapha ukushisa, kanye nolayini wokukhiqiza wokushisa ocishayo nowokushisa ungamisa ngokuzenzakalelayo futhi ukhanyise ukucindezela kwamanzi. inkomba kuphaneli.

9. Idivayisi yokuguqula imvamisa ye isithando sokushisa sangaphakathi yamukela i-thyristor SCR, okuyingxenye eyinhloko yengxenye yokunikezwa kwamandla. Ukusebenza kwe-thyristor ekhethiwe kuzothinta ngqo ukusebenza kwemishini. Ukuhlukaniswa okuvame ukusetshenziswa kwe-thyristor,

1) Uhlobo lwe-KP olujwayelekile lwe-thyristor, oluvame ukusetshenziswa ekulungiseni;

2) KK thayipha i-thyristor esheshayo, evame ukusetshenziswa ku-inverter;

  1. I-KF yohlobo lwe-asymmetric thyristor wuhlobo olusha lwe-thyristor olwakhiwe eminyakeni yamuva, olusetshenziswa kumishini ye-inverter yochungechunge.