Ningbo, Zhejiang, China
Business Type: Manufacturer/Factory, Trading Company
Specification | Unit | Specified value |
Rated voltage | kV | 126 |
Rated frequency | Hz | 50 |
Rated current | A | 2000 |
Rated short time withstand current | kA | 40 |
Rated duration of short circuit | S | 4 |
Rated short time power frequency withstand voltage | kV | 230 (to earth, between poles ) |
230+73 (across open switching device) | ||
Rated lightning impulse withstand voltage (peak value) | Kv | 550 (to earth, between poles ) |
550+103 (across open switching device) | ||
Rated SF 6 gas pressure/alarm pressure value ( 20 ºC) | MPa | Circuit breaker chamber 0.6 |
Other chambers 0.5 | ||
Annual leakage rate of SF 6 | % | ≤0.5 |
Voltages of control circuit and auxiliary circuit | DC | DC 110 or 220V, AC 220V |