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A Transformer Station is supplied from T1 and T2 115/27.6 kV transformers. The station has three feeder loads one of which supplies a salt mine that uses variable frequency drives (VFDs)to power electric motors. The substation also has a 2 Mvar switchable capacitor bank equipped with a 0.18 mH suppression reactor. a) The capacitor has an external fuse. Calculate the size of the fuse for this 3-phase 2 MVar,27.6 kV capacitor bank b) The substation has a high-pass filter to eliminate higher-order harmonics coming from the salt mine. Calculate the tuning frequency. (Note: Xc = (kV)²/MVA)

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