Uma sikhulu amandla omkhiqizo ohloliwe kanye nokusabela kokuvuza kwe-transformer yokuhlola, kusobala kakhulu umphumela wokukhuphuka kwamandla.Ngakho-ke, lapho senza i-AC ukumelana nokuhlolwa kwe-voltage yochungechunge lwento yokuhlola umthamo omkhulu we-resonance, kuyadingeka ukuba silinganise ngokuqondile i-voltage ekupheleni kwento yokuhlola ukuze kuvinjelwe into yokuhlola ukuthi ingangeni ku-voltage eyeqile.
IHV Hipot GDTF-800kVA/400kV AC Resonant Test System
I-overvoltage phenomenon yochungechunge lwedivayisi yokuhlola i-resonance ibangelwa izici ezilandelayo:
(1) Amajika ayisisekelo acindezelwa ngokuzumayo esikhundleni sokukhuphuka kancane kancane ukusuka ku-zero voltage.
(2) Uma kusekhona amandla kagesi aphezulu, nqamula ugesi kungazelelwe, esikhundleni sokwehla ngokulinganayo kube kuqanda bese unqamula ugesi.Kungabonakala enqubweni yoguquko ye-transformer winding ukuthi izimo ezimbili ezingenhla zizobangela ukugcwala ngokweqile kumkhiqizo ohloliwe, okungavunyelwe.
Ngo (1) ukuvinjwa yisekethe yokulawula ukuvimbela i-voltage engeyona iqanda ukuthi ingacindezelwa kungazelelwe.
Ukuze (2) indlela yokusebenza efanele kufanele isetshenziswe ngokuqinile ukuze kugwenywe.
(3) Isihloko sokuhlola siphuka ngokuzumayo.Lokhu kuvame ukuhlangana nakho futhi akunakugwenywa.Uma ukuphela kwe-outlet ye-test transformer ixhunywe ngokuqondile kumkhiqizo ohloliwe, lapho umkhiqizo ohloliwe uphuka ngokuzumayo, amandla okuphela kwe-outlet ye-transformer yokuhlola aphoqelelwa ngokushesha ku-zero, okulingana nesenzo esingazelelwe ekuphumeni. isiphetho se-transformer yokuhlola—igagasi elilodwa langaphambili lingumqansa ngokwedlulele Inani eliphakeme legagasi le-voltage elishukumisayo lilingana nenani elisheshayo le-voltage yokuhlola esheshayo yento yokuhlola, kodwa i-polarity iphambene.Lokhu kuzokhiqiza ama-overvoltages ayingozi ekwakhiweni kwe-longitudinal kwama-winding transformer test.
Indlela yokuyinqanda iwukuxhuma isivikelo esivikelayo esinenani elifanele lokumelana ochungechungeni phakathi kwesiphetho se-transformer outlet yedivayisi yokuhlola imvamisa yochungechunge lwamandla kanye nento yokuhlola, ukuze i-voltage yomfutho ye-polarity ephambene isebenze kusekethe yochungechunge i-resistor yokuzivikela kanye ne-transformer inlet capacitance.Isikhathi esifushane, iningi lamandla kagesi liyehla ku-protest resistor.
Isikhathi sokuthumela: Aug-02-2022