Table 1 NVCs for phase discrimination in the test system shown in Fig. 1
Type of FFT coefficient | No Fault (ΓR,ΓY,ΓB) | LG Fault (AG) (ΓR,ΓY,ΓB) | LL Fault (AB) (ΓR,ΓY,ΓB) | LLG Fault (ABG) (ΓR,ΓY,ΓB) | LLL Fault (ABC) (ΓR,ΓY,ΓB) |
|---|---|---|---|---|---|
\( {\eta}_i^0 \) | 0, 0, 0 | 0, 0, 0 | 0, 0, 0 | 0, 0, 0 | 0, 0, 0 |
\( {\eta}_i^{50} \) | 1, 1, 1 | 0.6, 1, 1 | 0.6, 0.6, 1 | 0.5, 0.5, 1 | 1, 1, 1 |
\( {\eta}_i^{100} \) | 0, 0, 0 | 0, 0, 0 | 0, 0, 0 | 0, 0, 0 | 0, 0, 0 |
\( {\eta}_i^{150} \) | 0, 0, 0 | 0, 0, 0 | 0, 0, 0 | 0, 0, 0 | 0, 0, 0 |