Kubuda kweCorona kunoitika kana simba remagetsi risina kuenzana rikagadzirwa neconductor isingatsvedzerere. Pakatenderedza simba remagetsi risingaenzane uye pedyo neelectrode ine denderedzwa diki rekukombama, kana simba remagetsi rakwira kusvika padanho rakati, nekuda kweionization yemhepo, kubuda kwesimba kunoitika, kuchigadzira korona.
Kubva mumamiriro ezvinhu ekugadzira korona, tinogona kuona kuti minda yemagetsi isingaenderane, maconductor asingatsvedzerere, uye mavoltage akakwira zvakakwana ndizvo zvinodiwa pakugadzira korona. Saka, korona ichaitika pakupera kwemawindings emamota ane voltage yakawanda, kunyanya kumamota ane voltage yakayerwa yakakwira kupfuura 6kV, korona yemawindings e stator ichave pachena, uye kana voltage yakakwira, dambudziko re corona richava rakakura. Saka, pamawindings emamota ane voltage yakawanda, matanho ekurapa anti-corona anotorwa nekushandisa waya dze electromagnetic dzakakosha uye ma wrapping resistance tapes ari kunze kwema winding coils. Nezvedambudziko re corona remota dzine voltage yakawanda, kunzwisisa kwevanhu kuripo. Saka, nei corona ichiwanikwawo mumamota ane frequency inoshanduka?
Mota dzevariable frequency dzinofambiswa nevariable frequency drives. Voltage output nevariable frequency drive haisi sine wave yakafanana neyemagetsi pa industrial frequency, asi square wave ine steep rising and falls. Iyi special pulse wave inoita kuti input voltage yemota ive ne periodic peak overvoltages inopetwa kaviri pane rated voltage. Nekuda kwekumhanya kukuru kwe pulse overvoltage iyi, ichakonzera kusafanana kwakakomba mukugoverwa kwe electric field kwemota. Kunyangwe mota zhinji dzevariable frequency dziri mota dzine low-voltage motors, special power supply method inosarudza kusafanana kwe electric field mu windings dzadzo.
Zvichibva pahunhu hwehuwandu hwemawindings uye hurefu hwemawindings ese ari mumota, mawindings ekutanga neekupedzisira emota ine simba rakaderera anotakura magetsi akawanda, uye ndiwo anonyanya kukonzera matambudziko mumota. Uyezve, kubva mukuongororwa kwemaitiro ekubatanidza mawindings, coil yekutanga inokuvadzwa zvakanyanya, saka inotarisana nenjodzi huru. Ndokusaka vagadziri vemota vazhinji vachipa dziviriro yakakosha kumawindings ekutanga neekupedzisira. Kune mota dzine simba rakaderera remawindings, nekuda kwesimba remunda risina kuenzana uye voltage yakapinza yepulse, magumo emota ane mamiriro ekutanga ekugadzira corona. Kudzivirira kugadzirwa kwecorona mumota ine simba rakawanda, mawindings emota ine simba rakawanda anofanira kushandisa waya yemagetsi inorwisa corona, uye matanho ekudzivirira anofanirwa kutorwa kumawindings ekutanga neekupedzisira.
Nguva yekutumira: Chikunguru-31-2025