Kusanthula Chifukwa Chakuwotcha Kwa Thyristor

Pa ntchito sing'anga pafupipafupi ng'anjo, thyristor woyaka nthawi zambiri zimachitika, amene nthawi zambiri kukwiyitsa ogwira ntchito yapakatikati pafupipafupi ng'anjo, ndipo nthawi zina sangathe kuwathetsa.Malinga ndi mbiri yokonza ng'anjo yapakatikati kwa zaka zambiri, zomwe zalembedwazi zitha kuwoneka pansipa kuti zigwiritsidwe ntchito ndi ogwira ntchito yosamalira.

1.Jekete lozizira lamadzi la inverter thyristor limadulidwa kapena kuzizira kumachepetsedwa, choncho manja oziziritsa madzi amayenera kusinthidwa.Nthawi zina zimakhala zokwanira kuona kuchuluka kwa madzi ndi kupanikizika kwa jekete yoziziritsa madzi, koma nthawi zambiri chifukwa cha vuto la madzi, sikelo imamangiriridwa pakhoma la jekete yoziziritsa madzi.Chifukwa chakuti sikelo ndi mtundu wa kusiyana kwa kutentha kwa ma conductivity ngakhale pali madzi okwanira othamanga, kutentha kwa kutentha kumachepetsedwa kwambiri chifukwa cha kudzipatula kwa sikelo.Njira yoweruza ndiyoti mphamvu ikugwira ntchito pa mphamvu ya mphindi khumi yotsika kuposa yamtengo wapatali.Kenako mphamvu idayima mwachangu, ndipo pachimake cha chinthu choyendetsedwa ndi silicon chidakhudza mwachangu ndi dzanja itayima.Ngati ikumva kutentha, vuto limayamba chifukwa cha izi.

2.Kulumikizana pakati pa groove ndi conductor ndikosavuta komanso kosweka.Yang'anani kagawo ndikulumikiza mawaya, ndikuwongolera molingana ndi momwe zilili.Pamene chingwe kugwirizana waya ali tayi chikhalidwe cha kukhudzana zoipa kapena wosweka mzere, mphamvu kukwera kwa mtengo wina adzatulutsa chodabwitsa cha moto, zomwe zimakhudza ntchito yachibadwa ya zida, zomwe zimatsogolera ku chitetezo cha zida.Nthawi zina kuwonjezereka kwapang'onopang'ono kumapangidwa mbali zonse ziwiri za thyristor chifukwa cha tayala.Chitetezo cha overvoltage chachedwa kwambiri, chidzasokoneza chinthu cha thynstor.Kuchulukirachulukira komanso kupitilira muyeso kumachitika nthawi yomweyo.

3.Instantaneous burr voltage ya thyristor ndi yokwera kwambiri pamene thyristor imasinthidwa.Mudera lalikulu lamagetsi apakati pafupipafupi, voteji ya reverse phase burr imatengedwa ndi kukana ndi kuyamwa.Ngati resistor ndi capacitor dera lotseguka mu mayamwidwe dera adzachititsa yomweyo n'zosiyana burr voteji kwambiri ndi kuwotcha thyristor.Pankhani ya kulephera kwa mphamvu, timagwiritsa ntchito tebulo la WAN Xiu kuyeza absorpti pa kukaniza ndi mphamvu ya capacitor ya mayamwidwe, kuti tidziwe ngati pali cholakwika mu dera loyamwitsa capacitance.

4.Katunduyo amachepetsa kusungunula kwa grou nd: kusungunula kwa chipika cha katundu kumachepa, kuchititsa kuti katunduwo aziwotcha pakati pa nthaka, kusokoneza nthawi yoyambitsa phokoso kapena kupanga voteji pamwamba pa malekezero onse a thyristor ndi kuwotcha chinthu cha thyristor.

5.Pulse trigger circuit fault: Ngati choyambitsa chiwombankhanga chitayika mwadzidzidzi pamene chipangizocho chikugwira ntchito, chidzayambitsa dera lotseguka la inverter ndikupanga magetsi apamwamba kumapeto kwa mphamvu yapakati pamagetsi ndikuwotcha chinthu cha thyristor.Cholakwika chamtunduwu nthawi zambiri chimakhala kupanga kwa inverter pulse ndi vuto la dera lotulutsa.Ikhoza kufufuzidwa ndi oscilloscope, ndipo ingakhalenso kukhudzana koyipa kwa waya wotsogolera inverter, ndipo imatha kugwedeza chingwe cha waya ndi dzanja ndikupeza malo olakwika.

6.Zipangizo zimatsegula pamene katunduyo akuyenda: Pamene chipangizocho chikugwira ntchito pa mphamvu yaikulu, ngati katundu wadzidzidzi ali pamtunda wotseguka, chinthu cholamulidwa ndi silicon chidzawotchedwa pamapeto otuluka.

7.Katunduyo ndi waufupi wozungulira pamene zida zikuyenda: Pamene zida zikuyenda mwamphamvu kwambiri, ngati katunduyo akuzungulira mwadzidzidzi, adzakhala ndi mphamvu yaikulu yafupipafupi pakali pano pa SCR: ndipo ngati chitetezo chilipo. sangathe kutetezedwa, zinthu za SCR zidzawotchedwa.

8.Kutetezedwa kwa dongosolo lolephera (kulephera kwa chitetezo): Chitetezo cha SCR makamaka chimadalira dongosolo la chitetezo.Ngati chitetezo chalephera) pamakina, zidazo sizikhala zachilendo pantchito yake, zomwe zimabweretsa zovuta ku chitetezo cha SCR.Chifukwa chake, ndikofunikira kuyang'ana chitetezo pamene SCR ikuyaka.

Kulephera kwa dongosolo lozizira la 9.SCR: Thyristor ndi kutentha kwambiri kuntchito ndipo imafuna kuziziritsa kuti iwonetsetse kuti ikugwira ntchito bwino.Nthawi zambiri, pali njira ziwiri zoziziritsira chowongolera chowongolera cha silicon: imodzi ndi kuziziritsa kwamadzi ndipo inayo ndikuziziritsa mpweya.Kuziziritsa kwamadzi kumagwiritsidwa ntchito kwambiri, ndipo kuziziritsa kwa mpweya kumangogwiritsidwa ntchito pamagetsi osakwana 100KW.Nthawi zambiri, zida zapakatikati zomwe zimakhala ndi kuziziritsa kwamadzi zimakhala ndi chitetezo chamadzi, koma kwenikweni ndi chitetezo champhamvu yonse.Ngati madzi ena atsekedwa, sangathe kutetezedwa.

10.The reactor ili pavuto: Kuyatsa kwamkati kwa riyakitala kumapangitsa kuti mbali ya curre nt ya mbali ya mu verier kusokonezedwa.