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SF6 room DETERMINATION for 121kv

SF6 room DETERMINATION for 121kv

These values signify the primary voltage required to prop up the secondary voltage to 33kV, for example if the primary voltage was depressed to 88kV, it would require the tap changer at tap position 19 to pull the secondary voltage back up to 33kV, conversely, if the primary voltage swelled to 121kV, then tap position 1 would be

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