- 01
- Mar
Njira zisanu zothanirana ndi zovuta zopangira ng’anjo zosungunula
Njira zisanu zothanirana ndi zovuta zopangira ng’anjo zosungunula
(1) Mphamvu ya ng’anjo yosungunula induction: Gwiritsani ntchito multimeter kuti muwone ngati pali magetsi kuseri kwa chosinthira chachikulu (contactor) ndi fuse yolamulira, yomwe idzachotsa kuthekera kwa kutha kwa zigawozi.
(2) Wokonzanso ng’anjo yosungunuka yosungunula: Wokonzanso amagwiritsa ntchito gawo la magawo atatu lowongolera mlatho, lomwe limaphatikizapo ma fuse asanu ndi limodzi othamanga, ma thyristors asanu ndi limodzi, ma pulse transfoma ndi diode ya freewheeling.
Pali chizindikiro chofiira pa fuse yofulumira. Kawirikawiri, chizindikirocho chimachotsedwa mkati mwa chipolopolo. Pamene chiwombankhanga chikuwomba, chidzawonekera. Zizindikiro zina zofulumira zimakhala zolimba. Chochita mwachangu chikawomba, chimakakamira mkati. , Chifukwa cha kudalirika, mungagwiritse ntchito multimeter kuti muyese kuthamanga kwachangu pa / off gear kuti muwone ngati ikuwombedwa.
Njira yosavuta yoyezera thyristor ndi kugwiritsa ntchito multimeter kuyeza kukana kwake kwa cathode-anode ndi gate-cathode ndi multimeter (200Ω block). Thyristor sayenera kuchotsedwa panthawi yoyezera. Nthawi zonse, kukana kwa anode-cathode kuyenera kukhala kosatha, ndipo kukana kwa chipata cha cathode kuyenera kukhala pakati pa 10-50Ω. Kukula kwakukulu kapena kochepa kwambiri kumasonyeza kuti chipata cha thyristor chimalephera, ndipo sichikhoza kuyambitsa.
Mbali yachiwiri ya pulse transformer imagwirizanitsidwa ndi thyristor, ndipo mbali yoyamba imagwirizanitsidwa ndi bolodi lalikulu lolamulira. Gwiritsani ntchito multimeter kuyeza kukana koyambirira kwa pafupifupi 50Ω. The freewheeling diode nthawi zambiri simalephera. Gwiritsani ntchito diode ya multimeter kuti muyese mbali zake ziwiri poyang’anira. Ma multimeter akuwonetsa kuti kutsika kwamagetsi kwapakati kuli pafupifupi 500mV kutsogolo, ndipo mbali yakumbuyo yatsekedwa.
(3) Inverter ya ng’anjo yosungunula induction: Inverter imaphatikizapo ma thyristors anayi othamanga ndi ma pulse transformers anayi, omwe amatha kuyang’aniridwa motsatira njira zomwe zili pamwambazi.
(4) Zosintha za ng’anjo yosungunula induction: Mapiritsi aliwonse amtundu uliwonse ayenera kulumikizidwa. Kawirikawiri, kukana kwa mbali yoyamba ndi pafupifupi makumi a ohms, ndipo kukana kwachiwiri ndi ohms ochepa. Tikumbukenso kuti mbali yaikulu ya wapakatikati pafupipafupi voteji thiransifoma chikugwirizana ndi katundu, kotero kukana mtengo wake ndi ziro.
(5) Ma capacitor a ng’anjo zosungunuka za induction: Ma capacitor otenthetsera magetsi olumikizidwa molingana ndi katundu akhoza kusweka. Ma capacitor nthawi zambiri amaikidwa m’magulu pa rack capacitor. Gulu la ma capacitor osweka liyenera kutsimikiziridwa poyamba pakuwunika. Chotsani malo olumikizirana pakati pa mabasi a gulu lililonse la ma capacitor ndi bala yayikulu ya basi, ndikuyesa kukana pakati pa mipiringidzo iwiri yamabasi a gulu lililonse la ma capacitor. Nthawi zambiri, ziyenera kukhala zopanda malire. Pambuyo potsimikizira gulu loipa, tsegulani khungu lofewa lamkuwa la capacitor iliyonse yotentha yamagetsi yopita ku bar ya basi, ndipo fufuzani m’modzi ndi mmodzi kuti mupeze capacitor yosweka. Chilichonse chotenthetsera magetsi chimapangidwa ndi ma cores anayi. Chigobacho ndi mlongoti umodzi, ndipo mzati winawo umatsogozedwa ku kapu yomaliza kudzera muzitsulo zinayi. Nthawi zambiri, phata limodzi lokha lidzaphwanyidwa. Capacitor ikhoza kupitiliza kugwiritsidwa ntchito, ndipo mphamvu yake ndi 3/4 ya choyambirira. Cholakwika china cha capacitor ndikutuluka kwamafuta, komwe nthawi zambiri sikumakhudza kugwiritsa ntchito, koma samalani ndi kupewa moto.