SF₆ Column-Type Circuit Breakers VGC-SVEL-110, manufactured by the "SVEL" Group, are designed for switching high-voltage electrical circuits with a nominal voltage of 110 kV and a nominal current up to 3150 A. They ensure reliable interruption and making of short-circuit currents and comply with modern reliability and safety standards.

Main Technical Characteristics:

• Nominal Voltage: 110 kV
• Maximum Operating Voltage: 126 kV
• Nominal Current: 3150 A
• Nominal Short-Circuit Breaking Current: 40 kA
• Nominal Frequency: 50 Hz
• Impulse Withstand Voltage: 550 kV
• Power Frequency Withstand Voltage: 230 kV
• Mechanical Endurance: 10,000 cycles
• Service Life: at least 40 years

Design Features:

• High Reliability: the design ensures a long service life and resistance to external influences.
• Compactness: optimized dimensions facilitate transportation and installation.
• Minimal Gas Leakage: SF₆ gas leakage rate does not exceed 0.5% per year, reducing operational costs.
• Seismic Resistance: withstands seismic loads up to 9 points on the MSK scale.

Operating Conditions:

• Temperature Range: from -60 °C to +40 °C
• Installation Altitude: up to 1000 m above sea level
• Ice Resistance: ice crust thickness up to 20 mm
• Wind Resistance: wind speed up to 40 m/s

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