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Short-Circuit & Per-Unit Studies

Bolted Three-Phase Fault at a 1000 kVA Transformer: 20.1 kA

A 1000 kVA, 6.0% impedance transformer on an infinite source with a bolted three-phase fault on the secondary. The fault is 16.67 per unit, or about 20.1 kA, with a primary line current of about 279 A, shown with a fault current table.

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