| Equipment Classification |
Vacuum Circuit Breaker |
Vacuum Circuit Breaker |
Vacuum Circuit Breaker |
| Rated Grid Frequency |
50 / 60 Hz |
50 / 60 Hz |
50 / 60 Hz |
| Phase-to-Earth Operating Voltage |
42 kV |
42 kV |
— |
| Phase-to-Phase Operating Voltage |
— |
— |
72 kV |
| Power-Frequency Withstand Voltage (50 Hz / 1 min) |
140 kV |
140 kV |
140 kV |
| Lightning Impulse Withstand (BIL, 1.2/50 μs) |
325 kV |
325 kV |
325 kV |
| Rated Continuous Normal Current |
2500 A |
2500 A |
2500 A |
| Rated Short-Circuit Interrupting Current |
31.5 kA |
31.5 kA |
31.5 kA |
| Peak Short-Circuit Making Current |
80 kA |
80 kA |
80 kA |
| Short-Time Withstand Current |
31.5 kA / s |
31.5 kA / s |
31.5 kA / s |
| Operating Actuator Mechanism |
Heavy-duty steel springs |
Heavy-duty steel springs |
Heavy-duty steel springs |
| Pole Configuration |
1 Pole |
2 Poles |
3 Poles |
| Total Tripping / Opening Time |
≤ 17 ms |
≤22 ms |
≤≤ 22 ms |
| Total Closing Time |
≤ 60 ms |
≤ 60 ms |
≤ 65 ms |
| External Insulator Type |
Solid polymeric composite |
Solid polymeric composite |
Solid polymeric composite |
| Electrical Endurance Class (IEC 62271-100) |
E2 |
E2 |
E2 |
| Module Dimensions (H X L X W) |
1989 X 834 X 634 mm (per module) |
1989 X 834 X 634 mm (per module) |
1989 X 834 X 634 mm (per module) |
| Auxiliary Supply Rating (Heaters, Illumination, etc.) |
110, 220 V DC / VAC |
110, 220 V DC / VAC |
110, 220 V DC / VAC |
| Drive & Control Voltage (Motor, Trip & Close Coils) |
48, 60, 72, 110, 220 V DC; 220 V AC |
48, 60, 72, 110, 220 V DC; 220 V AC |
48, 60, 72, 110, 220 V DC; 220 V AC |
