Uvavanyo lwe-AC lokumelana novavanyo lwe-voltage ye-transformer luvavanyo apho i-sinusoidal power frequency frequency voltage ye-AC yovavanyo edlula i-multiple multiple of voltage rated isetyenziswe kwi-winding transformer winding evavanyiweyo kunye ne-bushing, kwaye ubude be-1min.Injongo kukusebenzisa i-voltage yovavanyo ephezulu kunophinda-phindo oluthile lombane olinganisiweyo ukuze kuthathelwe indawo i-atmospheric overvoltage kunye ne-overvoltage yangaphakathi ukuvavanya ukusebenza kwe-insulation ye-transformer.Yeyona ndlela isebenzayo yokuchonga amandla e-insulation of transformer, kwaye ikwayiprojekthi yovavanyo ebalulekileyo yokuqinisekisa ukusebenza ngokukhuselekileyo kwe-transformer kunye nokuphepha ukwenzeka kweengozi ze-insulation.Uvavanyo lwe-AC lokumelana novavanyo lwe-voltage lunokufumana ukugqunyelelwa okuphambili kwe-transformer kumanzi kwaye iziphene ezigxininisiweyo, njengokuqhekeka kwe-insulation ephambili ye-windings, i-windings evulekileyo Iziphene ezinjengokufuduswa, umgama wokukhokelela awanelanga, kwaye ukungcola kuncanyathiselwe kwi-insulation. .Uvavanyo lwe-AC lokumelana ne-voltage luvavanyo olutshabalalisayo kuvavanyo lwe-insulation.Kufuneka iqhutywe emva kokuba ezinye iimvavanyo ezingonakalisi (ezifana nokumelana nokufakwa kwe-insulation kunye novavanyo lwe-absorption ratio, uvavanyo lokuvuza kwe-DC, ukulungiswa kwelahleko ye-dielectric kunye novavanyo lwe-oyile yokugquma) zifanelekile..Emva kokuba olu vavanyo lugqithiselwe, i-transformer inokufakwa ekusebenzeni.Uvavanyo lwe-AC lokumelana ne-voltage luvavanyo oluphambili, Ke ngoko, imimiselo yovavanyo lothintelo imisela ukuba ii-transformer ezine-10kV nangaphantsi kufuneka zivavanyelwe i-AC yokumelana nombane emva kweminyaka eyi-1 ~ 5, i-66kV nangaphantsi emva kokulungiswa ngokutsha, emva kokutshintsha ama-windings kwaye xa kuyimfuneko.
HV HIPOTGDTF series Frequency resonant Test Seti
Indlela yovavanyo
(1) Iintambo
I-AC yangaphandle imelana novavanyo lweentambo zombane kwiziguquli zamandla ezincinci neziphakathi ezingaphantsi kwe-35kV.Zonke ii-winding kufuneka zivavanywe.Ngethuba lovavanyo, iingcingo ezikhokelayo zesigaba ngasinye sokujija kufuneka zibe zifutshane-zijikelezwe kunye.Ukuba kukho intambo ekhokelayo kwindawo engathathi hlangothi, ucingo olukhokelayo kufuneka lube lufutshane kunye nesigaba sesithathu.
(2) Uvavanyo lweVoltage
Umgangatho wovavanyo lonikezelo umisela ukuba isiguquli esinamandla angaphantsi kwe-8000kV kwaye amandla ombane alinganiswe ukujikajika angaphantsi kwe-110kV kufuneka ibekwe phantsi kovavanyo lwe-AC lokumelana namandla ombane ngokomgangatho wovavanyo wombane odweliswe kwiSihlomelo I somgangatho.
Imimiselo yovavanyo lokuthintela ichaza: ixabiso lombane wovavanyo lwe-oyile-i-transformers entywiliselweyo ichazwe kwitheyibhile yemimiselo (uvavanyo oluqhelekileyo luthatha indawo yexabiso lombane ojikelezayo ngokwenxalenye).Xa zonke ii-windings zohlobo olumileyo zitshintshwa, ixabiso le-voltage yovavanyo lwefektri liya kusetyenziswa;xa ii-windings zohlobo olumileyo zitshintshwa ngokuyinxenye kwaye zivavanywa ngamaxesha, ixabiso lombane lovavanyo lwefektri liya kuba ngamaxesha angama-0.85.
Ixesha lokuposa: Jun-27-2022