550kV Dead Tank SF6 Circuit Breaker
LW67-550
Product Overview
Advanced switchgear designed for reliable power distribution and protection in utility and industrial applications.
Inquire NowTechnical Specifications
| Rated Voltage | 550 kV |
| Rated Current | 4000/5000 A |
| Rated Short-Time Withstand Current and Duration | 63kA/3 s |
| Rated Peak Withstand Current | 171 kA |
| Rated Short-Time Power Frequency 1min Withstand Voltage (RMS) (Phase-to-Earth/Across Open Contacts) | 740/740+318 kA |
| Rated Switching Impulse Withstand Voltage (Phase-to-Earth/Across Open Contacts) (250/2500μs) | 1300/1175+450 kA |
| Rated Lightning Impulse Withstand Voltage (Phase-to-Earth/Across Open Contacts) (1.2/50μs) | 1675/1675+450 kA |
| System Time Constant | 120 ms |
| Rated Operating Sequence | O-0.3s-CO-3min-CO |
| Electrical Life(Full-Capacity Breaking) | 20 cycles |
| Mechanical Life | 10,000 cycles |