Nzira yekugadzirisa sei dambudziko kana yepamusoro-frequency kudzima michina anowana mhosva?

1. Fault phenomenon The high-frequency quenching equipment iri kushanda zvakajairika, asi beep-beep inopinza inogona kunzwika nguva nenguva, uye DC voltmeter zvishoma oscillates. Shandisa oscilloscope kuona iyo voltage waveform kumativi ese ari maviri eiyo inverter bhiriji. Zvinogona kuonekwa kuti nguva ye inverter ipfupi, imwe denderedzwa inokundikana kana nguva shomanana yenguva isingagumi inokundikana, uye parallel resonant inverter circuit inokundikana kwenguva pfupi, asi nguva yekuzvigadzirisa ipfupi, uye kukundikana ndiko. kazhinji inverter control. Chikamu chayo chinovhiringidzwa neiyo rectifier pulse, uye iyo aperiodic yenguva pfupi yekutadza kunowanzo kukonzerwa nekushomeka kwakashata pakati pekutendeuka kwepakati frequency transformer.

2. Chiitiko chekukanganisa Mushure mekunge midziyo yekudzima yakakwira-frequency yave ichimhanya zvakajairika kwenguva yakati rebei, mudziyo une ruzha rusina kujairika, uye kuverenga kwemamita kunodengenyeka uye midziyo haina kugadzikana. Ruzha rusina kujairika runoitika mushure mekunge midziyo yave ichishanda kwenguva yakati. Basa racho harina kugadzikana, kunyanya nokuti maitiro ekupisa emagetsi emagetsi emidziyo haana kunaka. Zvikamu zvemagetsi zvemidziyo zvinogona kukamurwa kuita zvikamu zviviri: ikozvino isina simba uye yakasimba ikozvino, uye chikamu chekutonga chinogona kuonekwa zvakasiyana kudzivirira kukanganisa. Kana iyo huru yedunhu simba mudziyo isina kubatanidzwa kune huru simba switch, chete magetsi echikamu chekutonga anovhurwa. Mushure mokunge chikamu chekutonga chichishanda kwenguva yakati, shandisa oscilloscope kuti uone kuputika kwebhodhi rekutonga kuti uone kana trigger pulse iri yakajairika.

Pamusoro pekusimbisa kuti hapana dambudziko muchikamu chekutonga, vhura midziyo, uye mushure mekunge chiitiko chisina kujairika chikaitika, tarisa kudonha kwevoltage waveform yega yega thyristor ine oscilloscope, uye tsvaga iyo thyristor ine urombo hwekupisa maitiro; kana voltage inodonha waveform ye thyristor iri Zvese zvakajairika. Panguva ino, tinofanira kuchenjerera kana pane matambudziko nezvimwe zvikamu zvemagetsi, uye kunyatsoteerera kune vanoputsa dunhu, capacitors, reactors, copper bar contacts uye main transformers.