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  1. Chunky12345

    High x/r ratio on transmission network

    Good morning all, I've conducted a fault level study on PSSe on a 400kV and 275kV network and though the fault levels are within the ratings of relevant switchgear, the 3ph RMS x/r ratio is above 14 (close to 25). The initial peak current isn't over the make rating of the circuit breaker so no...

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