Operating Conditions
1. Ambient temperature: upper limit + 40°C, and the average value measured within 24 hours does not exceed 35°C, lower limit ‒10°C;
2. Altitude: ≤1000m;
3. Relative humidity: daily average 95%, monthly average 90%;
4. Seismic resistance: 8 magnitude;
5. Water vapor pressure: daily average value does not exceed 2.2 kPa, monthly average value does not exceed 1.8 kPa;
6. Surrounding environment: Places without fire, explosion hazards, severe pollution, chemical corrosion and severe vibration.
Model and meaning
Technical Specification
Item | Unit | Parameter |
Rated Voltage | kV | 40.5 |
Rated Current | A | 1250, 1600, 2000 |
Rated Frequency | Hz | 50 |
Rated Short-time Withstand Current | kA | 20, 25, 31.5 |
Rated Peak Withstand Current | 50, 63, 80 | |
Rated Power Frequency Withstand Current | kV | 95/min |
Rated Lighting Impulse Withstand Current | 185 | |
Rated Short Circuit Duration | s | 4 |
Protection Class | IP3X |
External Dimensions
A:Relay Instrument Room
B:busbar room
C:circuit breaker chamber
D:cable room