Short-Circuit & Per-Unit Studies

Fault Types on a 34.5 kV Bus: Three-Phase, Line-to-Line and Line-to-Ground

A 34.5 kV main bus fed by the utility, N+1 generators and optional battery storage, with the three-phase, line-to-line and single line-to-ground fault types marked at one location, feeding two critical paths and a station-service feeder.

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Line-to-Line Fault at Transformer Secondary Terminals (thumbnail)

Line-to-Line Fault at Transformer Secondary Terminals

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

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

Impedance Chain from Utility Source to a 13.8 kV Fault (thumbnail)

Impedance Chain from Utility Source to a 13.8 kV Fault