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Custom Designed sf6 pressure in ESTONIA

Custom Designed sf6 pressure in ESTONIA

SF6 circuit breaker maintenance | T&D Guardian Articles | USAThe first generation of SF6 circuit breakers was the lower voltage classes of 72kV and 145kV. As SF6 breaker technology improved, circuit breaker manufacturers introduced a dual pressure design for 145kV through 800kV applications, as well as air-blast breakers utilizing SF6 as the line-to ground dielectric insulation.

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