- 1. Voltage uye ikozvino inofananidzwa
(1) Magetsi matatu-chikamu (380V)
Rated voltage kusarudzwa: Iyo yekumira voltage ye thyristor inofanira kunge inosvika 1.5 nguva yevoltage inoshanda (inokurudzirwa kuva pamusoro pe600V) kuti igone kurarama nepeak voltage uye overvoltage yenguva pfupi.
Ikozvino kuverenga: Iyo yechitatu-phase mutoro ikozvino inoda kuverengerwa zvichienderana nese simba (senge 48kW), uye yakakurudzirwa yakayerwa ikozvino i1.5 nguva chaiyo yazvino (yakadai se73A mutoro, sarudza 125A-150A thyristor).
Balance control: Iyo mitatu-chikamu-mbiri-yekudzora nzira inogona kukonzera kuderera kwesimba chinhu uye kuchinja kwezvino. Zero-crossing trigger kana phase-shift control module inoda kuiswa kuti ideredze kukanganiswa negetsi remagetsi.
(2) Magetsi maviri-chikamu (380V)
Voltage adaptation: Iwo maviri-chikamu magetsi ari chaiwo-chikamu 380V, uye bidirectional thyristor (yakadai seBTB yakatevedzana) inoda kusarudzwa, uye inomira voltage inodawo kuva pamusoro pe600V.
Kugadziriswa kwemazuva ano: Ikozvino-chikamu chemazuva ano chakakwirira kudarika chetatu-phase current (senge inenge 13.6A ye5kW mutoro), uye muganhu mukuru wezvino unoda kusarudzwa (zvakadai sepamusoro pe30A).
2. Wiring uye nzira dzinokonzera
(1) Nhatu-chikamu wiring:
Ita shuwa kuti iyo thyristor module yakabatana munhevedzano pachikamu mutsara wekupinza wekupedzisira, uye chinokonzeresa chiratidzo mutsara chinofanira kunge chiri chipfupi uye chakasarudzika kubva kune mamwe mitsara kudzivirira kupindira. Kana zero-crossing triggering (solid-state relay method) inoshandiswa, harmonics inogona kuderedzwa asi simba rekugadzirisa simba rinodiwa kuti rive rakakwirira; nokuda kwechikamu-chinokonzera kukonzera, kutarisa kunofanira kubhadharwa kune voltage shanduko yezinga (du/dt) kudzivirira, uye resistor-capacitor absorption circuit (yakadai se 0.1μF capacitor + 10Ω resistor) inofanira kuiswa.
(2)Two-phase wiring:
Bidirectional thyristors inofanira kusiyanisa nemazvo pakati peT1 neT2 matanda, uye danda rekudzora (G) rinokonzera chiratidzo rinofanira kuwiriraniswa nemutoro. Zvinokurudzirwa kushandisa yakasarudzika optocoupler trigger kudzivirira kukanganisa.
3. Kupisa uye kudzivirira
(1) Zvinodiwa zvekupisa kupisa:
Kana iyo yazvino ichipfuura 5A, singi yekupisa inofanirwa kuiswa, uye girizi rinopisa rinofanira kuiswa kuti ive nechokwadi chekusangana kwakanaka. Iyo tembiricha yegomba inofanirwa kudzorwa pazasi 120 ℃, uye kumanikidzwa kutonhora kwemhepo kunofanirwa kushandiswa kana zvichidikanwa.
(2) Matanho ekudzivirira:
Overvoltage dziviriro: Varistors (senge MYG akatevedzana) anonzva kwenguva pfupi yakakwira voltage.
Kudzivirirwa kwepamusoro: kukurumidza-kuvhuvhuta fuse yakabatanidzwa munhevedzano muanode circuit, uye yakarongwa ikozvino ndeye 1.25 nguva ye thyristor.
Voltage shanduko mwero muganho: parallel RC damping network (senge 0.022μF/1000V capacitor).
4. Simba chinhu uye kubudirira
Mune matatu-phase system, phase shift control inogona kuita kuti simba riderere, uye compensation capacitors inoda kuiswa padivi retransformer.
Maviri-chikamu sisitimu inojaira kune harmonics nekuda kwekuremerwa kusaenzana, saka zvinokurudzirwa kutora zero-kuyambuka trigger kana nguva-yekugovera kutonga zano.
5. Dzimwe pfungwa
Kurudziro yekusarudzika: ipa pamberi kune modular thyristors (senge Nokia brand), iyo inosanganisa inokonzeresa nekudzivirira mabasa uye kurerutsa wiring.
Kuongororwa kwekuchengetedza: nguva dzose shandisa multimeter kuti uone maitiro ekufambisa e thyristor kuti udzivise pfupi pfupi kana dunhu rakazaruka; kurambidza kushandiswa kwe megohmmeter kuyedza insulation.
Kana iwe uchida kuziva zvakawanda nezvechigadzirwa chedu, ndapotataura nesu!
Nguva yekutumira: Jul-16-2025
