electricpy.fault.phs3mvasc¶

electricpy.fault.phs3mvasc(Vth, Zseq, Rf=0, Sbase=1)[source]¶

Three-Phase MVA Short-Circuit Calculator.

Calculator to evaluate the Short-Circuit MVA of a three-phase fault given the system parameters of Vth, Zseq, and an optional Rf. Uses the formula as follows:

\[MVA_{sc} = \frac{\left|V_{th}^2\right|}{|Z_1|} * Sbase\]

Parameters:¶

Vth : complex¶

The Thevenin-Equivalent-Voltage

Zseq : list of complex¶

Tupple of sequence reactances as (Z0, Z1, Z2)

Rf : complex, optional¶

The fault resistance, default=0

Sbase : real, optional¶

The per-unit base for power. default=1

Returns:¶

MVA – Three-Phase Short-Circuit MVA.

Return type:¶

real