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:

MVAsc=|I12||Z1|Sbase

where:

I1=VthZ0+Z1+Z2+3Rf
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