Indoor Handcart Vacuum Circuit Breaker 40.5kV
This indoor vacuum circuit breaker is designed for 40.5kV power distribution systems. Its handcart design allows for easy installation and maintenance.
Technical Specifications
Product Overview
High-Reliability Vacuum Circuit Breaker
The ZN23-40.5 indoor vacuum circuit breaker is a robust three-phase AC high-voltage solution designed for 40.5kV systems. Featuring a handcart-type structure, it ensures simple maintenance, safe operation, and easy integration into power distribution systems. This equipment is specifically optimized for high-frequency operation environments like metallurgy and electric arc steelmaking.
Technical Specifications
- Rated Voltage
- 40.5 kV
- Rated Frequency
- 50 Hz
- Available Rated Currents
- 1250A1600A2000A
Electrical Performance
Key Electrical Metrics
185 kV
Lightning Impulse Withstand
95 kV
1-Min Power Frequency Withstand
4 s
Short Circuit Duration
Operational Characteristics
Timing Specifications
| Metric | Value |
|---|---|
| Dropout Time | ≈90 ms |
| Close Time | 50-85 ms |
| Short Circuit Close Time | 80 kA |
- Rated Operating Sequence
- O-0.3s-CO-180s-CO
