I-GPAS ye-LV Ground Potential Overvoltage Attack

I-GPAS iyisisetshenziswa sokuvikela umbani esisebenza ngezindlela eziningi futhi esisebenzayo esihlanganisa ukucindezelwa okungaba khona kokuhlasela komhlaba kanye nokuvikela i-fault arc. Inganciphisa kakhulu umonakalo kanye nomthelela wokuhlasela okungase kube khona phansi kanye namaphutha e-arc ezintweni zokusebenza lapho echayeke ezingozini zombani.

Lapho umbani oqondile ushaya, induku yombani noma inethiwekhi yokuvikela umbani ixhunyiwe, futhi umbani onamandla ugeleza kugridi yomhlabathi. Uma olayini bamandla kagesi aphezulu bebona ukugcwala kombani, amandla ombani agelezela kugridi yaphansi ngokusebenzisa izibambisi zombani. Lapho imishini yokuphazamisa eqinile efana nemishini yokushisela isebenza, amandla okuphazamisa anamandla akhiqizwa yiwo nawo azogeleza kugridi yomhlabathi. Amandla okugxilisa aqinile angabangela ukulahleka kwedatha, ukusetshenziswa kabi kwempahla, ukukhubeka kwemishini, ukulimala kokufakwa kwensimbi noma ukushiswa kwezinhlelo zokuphakelwa kwamandla kagesi aphansi.

I-GPAS inokwethenjelwa okuphezulu nesikhathi sesenzo esifushane, esingahlukanisa ngokuphumelelayo imisinga yombani wefrikhwensi ephezulu, ivimbele imisinga yombani ekuhlaseleni inethiwekhi evikelayo evikela umbani, futhi igweme ngokuphumelelayo ukwenzeka kwezingozi zokukhiqiza ukuphepha ezifana nemililo nokuqhuma.

Xhumana nathi

imininingwane yomkhiqizo

Izici ezisebenzayo

• Ukukhetha: Cindezela ukuhlasela okungase kube khona phansi futhi cindezela impendulo engeyona ingxenye yesikhathi engaphezu kuka-50Hz;

• Ukwethembeka: Ukwamukela idizayini yesakhiwo esihambisanayo yemodi ekabili ukuze kuzuzwe ukungadingeki kokushisa okuku-inthanethi;

• Ukuphepha: Idizayini ye-bypass ephindwe kabili, ukudlula okuzenzakalelayo kwangaphakathi, umsebenzi we-bypass wokulungisa wangaphandle, oqinisekisa ukuphepha okuphezulu kokusebenza;

• Ukuqapha isimo: Kufakwe inkomba yesimo esisebenzayo;

• Ukuqapha i-Counterattack: Inombolo yokuhlasela ingafundwa ngokuqondile;

• Ububanzi besicelo: 10 (6)/0.4kV uhlelo lokusabalalisa.

inzuzo yemikhiqizo

• I-GPAS inokwethenjelwa okuphezulu nesikhathi sokwenza esifushane;

• I-GPAS ingahlukanisa ngempumelelo imisinga yombani wefrikhwensi ephezulu;

• I-GPAS ingavimbela ngempumelelo ukwenzeka kwezingozi zokukhiqiza ukuphepha ezifana nemililo nokuqhuma;

• I-GPAS isebenzisa izinto ezintsha ukuze kuzuzwe umsebenzi wokucindezelwa ongaba khona phansi, ngaphandle kwanoma yiziphi izingxenye ze-elekthronikhi zamandla, okuqinisekisa ukuphepha nokwethembeka.