Table 4.
Coordinates of discharge sources and detection points.
| Locations | Coordinates | ||
|---|---|---|---|
| Discharge sources | Inside the B-phase CT (O1) | (440,510,590) | |
| On the surface of the supporting insulator of the A-phase CB (O2) | (440,440,1060) | ||
| Around the C-phase CB (O3) | (770,330,1210) | ||
| On the surface of the bushing at the upside of back cabinet (O4) | (390,855,1910) | ||
| Inside cable joint at the downside of back cabinet (O5) | (580,780,290) | ||
| On the surface of the bushing at the downside of front cabinet (O6) | (630,520,280) | ||
|
| |||
| Detection points | Bottom plate of the front cabinet | Left side (A) | (150,340,0) |
| Middle side (B) | (520,340,0) | ||
| Right side (C) | (770,340,0) | ||
|
| |||
| Bottom plate of the back cabinet | Left side (D) | (150,940,0) | |
| Middle side (E) | (520,940,0) | ||
| Right side (F) | (770,940,0) | ||
|
| |||
| Front cupboard door | Bottom-left side (G) | (520,0,580) | |
| Upper-left side (H) | (520,0,1500) | ||
| Bottom-right side (I) | (770,0,580) | ||
| Upper-right side (J) | (770,0,580) | ||
|
| |||
| Side plate of the front cabinet | Middle side (K) | (1110,340,600) | |