Live Tank Circuit Breaker Type EDF SK 1-1 up to 72.5 kV
Well proven circuit breaker based on established design, assembled and tested for rapid installation
The EDF SK is a live tank SF6 Auto-Puffer™ circuit breaker. It has a proven design and long performance in a vast range of environments and ambient conditions with an installed base in over 80 countries. The EDF breaker is type-tested to stringent conditions as per IEC standard for high voltage circuit breakers, IEC 62271-100.
Applications
- Switching of Transmission Lines
- Switching of Transformers
- Switching of Capacitor banks
- Switching of Reactors
Why Hitachi Energy?
- Proven self-blast technology with low energy requirement
- Superior switching capability – Class C2 & S2 as per IEC
- Proven performance in extreme temperatures, from -30 °C to +50 °C
- Compact design and easy installation
- High seismic capability due to optimized pole and structure design
- Global service organization, local everywhere
Brief performance data
| LTB Type | EDF SK 1-1 | ||
|---|---|---|---|
| Rated voltage | kV | 52 | 72.5 |
| Frequency | Hz | 50-60 | 50-60 |
| Rated continuous current | A | 2500 | 2500 |
| Rated short circuit breaking current | kA | 31.5 | 31.5 |
| Lightning Impulse Withstand Voltage | kV | 250 | 325 |
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