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Generator Voltage Dip Calculator — Motor Starting kVA & Xd″

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Generator / alternator rating (kVA) Use the rating base associated with the entered Xd″.Motor / block-load starting kVA Use actual locked-rotor or starter-limited apparent power.Alternator Xd″ (%) Use manufacturer subtransient reactance on the same kVA base.Nominal terminal voltage (V) Voltage used to show the approximate minimum terminal voltage.Maximum initial dip target (%) Project/equipment criterion; not a universal standard limit.

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