Kutheni i-AC Resonant Test System ivelisa umbane ogqithisileyo?

Ubukhulu besakhono semveliso evavanyiweyo kunye nokusabela kokuvuza kwe-transformer yovavanyo, kokukhona kubonakala ngakumbi isiphumo sokunyuka kwe-capacitance.Ke ngoko, xa siqhuba uvavanyo lwe-AC lokumelana novavanyo lwe-resonance enkulu yovavanyo lomthamo omkhulu, kuyafuneka ukuba kulinganiswe ngokuthe ngqo umbane ekupheleni kwento yovavanyo ukunqanda into yovavanyo ukuba ingafakwa kumbane ogqithisileyo.

HV Hipot GDTF-800kVA/400kV AC Resonant Test System

I-overvoltage phenomenon yoluhlu lwesixhobo sovavanyo lwe-resonance ibangelwa zezi zinto zilandelayo:

(1) Ujiko oluphambili lucinezelwa ngequbuliso endaweni yokonyuka ngokuthe ngcembe ukusuka kumbane onguziro.
(2) Xa kusekho amandla ombane aphezulu, cima umbane ngequbuliso, endaweni yokuhla ngokulinganayo ukuya ku-zero uze ucime umbane.Inokubonwa kwinkqubo yenguqu ye-transformer winding ukuba ezi meko zimbini zingasentla ziya kubangela ukugqithisa kwimveliso evavanyiweyo, engavumelekanga.

Kuba (1) ukuvalwa kwesekethe yolawulo ukuthintela amandla ombane angengo-zero ekubeni acinezeleke ngequbuliso.
Kuba (2) indlela yokusebenza echanekileyo kufuneka iphunyezwe ngokungqongqo ukuphepha.
(3) Inqaku lovavanyo liphuka ngokukhawuleza.Oku kuhlala kuhlangatyezwana nayo kwaye akunakuphepheka.Ukuba isiphelo se-outlet ye-transformer yokuvavanya idibaniswe ngokuthe ngqo kwimveliso evavanyiweyo, xa imveliso evavanyiweyo idiliza ngokukhawuleza, amandla okuphela kwe-outlet ye-transformer yokuvavanya ngokukhawuleza anyanzeliswa ukuba abe ngu-zero, olingana nesenzo ngokukhawuleza kwi-outlet. isiphelo sovavanyo lwe-transformer-i-wave front wave iphezulu kakhulu Ixabiso eliphezulu le-voltage ye-impulse voltage lilingana nexabiso elikhawulezayo le-voltage yokuvavanya ngokukhawuleza into yokuvavanya, kodwa i-polarity ichasene.Oku kuya kuvelisa i-overvoltages eyingozi kwi-longitudinal insulation ye-windings ye-test transformer windings.

Indlela yokuthintela kukudibanisa i-resistor ekhuselayo enexabiso elifanelekileyo lokumelana kuthotho phakathi kwe-outlet ye-transformer ekupheleni kwesixhobo sokuvavanya i-resonance yamandla kunye nento yokuvavanya, ukuze i-voltage ye-impulse ye-polarity echaseneyo isebenze kwisekethe yochungechunge lwe-resonance. i-resistor yokukhusela kunye ne-transformer inlet capacitance.Ngexesha elifutshane, ininzi ye-voltage yehla kwi-resistor yokukhusela.