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Gas Circuit Breaker

Hyosung’s puffer-type SF6 Gas Circuit Breaker boasts a superior operational rate, highly reliable braking, and has become recognized as the most trusted supplier in the world.

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Gas Circuit Breaker (GCB) is a switch, which by its excellent extinction performance and insulation feature of the SF6 gas, can input the normal current generated in the power system or block abnormal current.

Our puffer-type SF6 GCB, with superior arc-quenching and insulation characteristics, is a dead tank type where the breaker is directly and mechanically earthed. With reduced failure rate and high reliability for frequent circuit operations, it boasts the best supply record domestically.
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