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Gas Insulated Switchgear

Hyosung offers a wide variety of SF6 Gas Insulated Switchgear ranging with rated voltages from 72.5kV to 800kV and rated short-circuit breaking current up to 63kA.

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Compact Design
The installation space that is required is about 1/10~1/20th than that of conventional air-insulated substations which makes it possible to install GIS within a building.
Safety
Enhanced insulating properties and reduced long-term operational costs by means of a sealed metal enclosure filled with SF6 gas which assures first-rate reliability, thus making it suitable for highly populated and urban areas.
Superior Reliability
Personnel safety is ensured by an earthed enclosure, numerous interlocks, and lockout devices. Greater stability is provided during earthquakes and the perfect enclosure protects from loss or damage from salt, dirt, weather, and lightning. While the SF6 gas insulation prevents deterioration, the partition of the gas prevents accidents from occurring.
Elimination of periodic maintenance
Virtually eliminates long-term maintenance costs and contamination of critical components by means of SF6 gas-filled metal enclosures, automatic monitoring of operating mechanisms, and the SF6 gas system.
Installation & transportation
Installation time and costs are reduced since the system is shipped in a completely assembled bay or by unit.
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