Niki Gitoya - Ikizamini cyo Kuzunguruka?
Ikizamini kigufi - cyumuzunguruko ni inzira yingenzi mugupima impinduka zifasha kumenya impedance ihwanye nigihombo cyumuringa mugihe cyumutwaro. Iki kizamini ningirakamaro mugusuzuma imikorere ya transformateur, kurinda umutekano, no kugenzura imiterere yacyo. Ikizamini kigufi - cyumuzenguruko cyumuzenguruko gipima impinduramatwara yikurikiranya (ikubiyemo kurwanya no kwitwara) ukoresheje voltage yagabanutse kumuyaga umwe mugihe iyindi ihindagurika ari ngufi - yazengurutse. Ikizamini gikorerwa muburyo buke - kuruhande rwa voltage hamwe na - umuyaga mwinshi ugabanuka, cyangwa ubundi, bitewe nibikoresho bihari, kugirango wirinde umuvuduko ukabije cyangwa kwangirika.
Niyihe ntego y'Ikizamini kigufi - Ikizamini cyo kuzunguruka?
.
{0}
.- Kubara igitonyanga cya voltage mugihe cyuzuye -.
- Kugenzura agaciro ka transformateur yizina ryagaciro.
.- Suzuma imiterere ya transformateur imbere nubwiza.
Nigute ushobora kubara bigufi - inzitizi zumuzunguruko (Zsc)
Mugihe cyo kwipimisha, Z% irashobora kubarwa ukoresheje:
Zpu%=(Vm * Ir) / (Vr * Im) * 100
Urugero
Kuri power transformateur hamwe namakuru akurikira:
YNyn0
Urutonde: 90 MVA
Umuvuduko: 132/33 kV
Ikigereranyo cyagenwe (HV): 393.65 A.
Ikigereranyo cyagenwe (LV): 1574.6 A.
Kwandika izina: Z%=22%
Ibi bivuze ko mugihe gito - imiterere yumuzunguruko, imiyoboro yagenwe izatemba mugihe 22% yumubyigano wapimwe washyizweho:
Z%=Vsc / Vr * 100
Ku ruhande rwa HV:
Vsc=Z% * Vr
Kurubuga -, gukoresha voltage nkiyi ntabwo ari ngirakamaro, kubwibyo bigufi - imiterere yumuzunguruko bigereranywa no gukoresha - voltage ntoya - itanga icyiciro (urugero . 400 V) kuruhande rwa HV mugihe gito - kizenguruka uruhande rwa LV.
Ukoresheje izina Z% hamwe nuburinganire (1), ibyateganijwe bigufi - byumuzunguruko ukurikije iyi miterere birashobora kugereranywa.
Muri iki kibazo, ibipimo bya HV byapimwe mugihe cyizamini ni hafi 5 A.
Gusimbuza ibyapimwe byapimwe muburinganire (1), kubarwa kuri - impedance yibice bizaba hafi yicyapa 22%, kigenzura impinduramatwara.
Menya ko ibi bisobanuro ari bigufi, kandi hariho ibisobanuro birambuye kubyerekeye ikizamini kitarimo.