electricpy.fault.phs1mvasc¶

electricpy.fault.phs1mvasc(Vth, Zseq, Rf=0, Sbase=1)[source]¶

Single-Phase MVA Short-Circuit Calculator.

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

\[MVA_{sc} = \left|I_1^2\right|*|Z_1| * Sbase\]

where:

\[I_1 = \frac{V_{th}}{Z_0+Z_1+Z_2+3*R_f}\]

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 – Single-Phase Short-Circuit MVA.

Return type:¶

real