Description
Technical Product Range & Performance Matrix
| Technical Parameter / Feature Category | Servo-Driven Arc Furnace Vacuum Breaker Specifications |
| Nominal Operating & Insulation Voltage Class | 36 kV, 38 kV |
| Power Frequency Withstand Voltage (50/60 Hz, 1 min) | 95 kV |
| Lightning Impulse Withstand Voltage Rating | 185 kVp |
| Rated System Frequency | 50 Hz, 60 Hz, or 50–60 Hz dual frequency |
| Continuous Operating Current Rating | 2,500 A, 3,000 A, 3,150 A |
| Symmetrical Breaking Capacity & 3s Short-Time Withstand | 31.5 kA, 40 kA |
| Peak Dynamic Making Capacity | 82 kAp, 104 kAp |
| Mechanical Switching Life Expectancy | 150,000 close-open operations (overhaul-free) |
| Standardized Duty Cycle Sequence | O – 0.3 s – CO – 15 s – CO |
| Contact Opening Duration | 35 ms |
| Arc Quenching Duration | 10 ms to 15 ms |
| Total Break / Interruption Time | 45 ms to 50 ms |
| Contact Closing Duration | 50 ms |
| Installation Mounting Execution Options | Fixed Version & Withdrawable / Drawout Version |
| Pole-to-Pole Center Distance (P) |
• Fixed Execution: 360 mm (14 in) • Drawout Execution: 280 mm (11 in) |
| Overall Frame Height (H) | 1,575 mm (60 in) |
| Overall Frame Width (W) |
• Fixed Execution: 1,100 mm (43 in) • Drawout Execution: 945 mm (32 in) |
| Overall Frame Depth (D) |
• Fixed Execution: 605 mm (24 in) • Drawout Execution: 750 mm (29.5 in) |
| Total Unit Mass / Weight |
• Fixed Execution: ~230 kg (507 lbs) • Drawout Execution: ~250 kg (551 lbs) |
