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- Company Name : China-East Resources Import And Export Company
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LW35-252 Circuit breaker
Product Detailed
Related Categories:Circuit Breakers
Detailed Product Description
Main technical Data
| No. | Item | Unit | Value | |
| 1 | Rated voltage | kV | 252 | |
| 2 | Rated frequency | Hz | 50 | |
| 3 | Rated current | A | 3150 | |
| 4 | Rated short-circuit breaking current | kA | 40/50 | |
| 5 | Short-line fault breaking current (L90) | kA | 36/45 | |
| 6 | Rated short-time withstand current (3s) | kA | 40/50 | |
| 7 | Rated peak withstand current | kA | 100/125 | |
| 8 | Rated short-circuit making current (peak) | kA | 100/125 | |
| 9 | Rated out-of-phase breaking current | kA | 10/12.5 | |
| 10 | Rated line charging breaking current | A | 125/160 | |
| 11 | Rated SF6 gas pressure (20) | MPa | 0.6 | |
| 12 | Resistance of main circuit | μΩ | ≤50 | |
| 13 | Rated operating sequence | 0-0.3s-CO-180s-CO | ||
| 14 | Mechanical endurance | times | 3000 | |
| 15 | Annual leak rate of SF6 gas | % | ≤1 | |
| 16 | Moisture content in SF6 gas (V/V) | ppm | ≤150 (when leaving the factory) | |
| 17 | Creeping distance (mm)/Creeping ratio (cm/kV) | Across the breaker | 7850/3.1 | |
| To earth | 7800/3.1 | |||
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