go to the Air-insulated switchgear product page Anonymous asked on Jan 14th, 2015 in Air-insulated switchgear

How is gas condensation in LTBs avoided?

Christian Cingolani, Global Product Marketing Manager LTB

ABB's answer

To avoid gas condensation the manufacturer have to adapt the use of SF6 in the circuit breaker depending on the temperature. For example the maximum use of SF6 for -40 degrees should be 0.5MPa. If higher filling pressure is used in the circuit breaker the gas will condensate in temperature down to -40 degrees . ABB delivers product that take this under consideration for all temperature levels that are delivered.

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  • Helene Hedlund

    Helene Hedlund

    Global Product Manager LTB

    High Voltage Products

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