electricpy.fault.poleopen1¶

electricpy.fault.poleopen1(Vth, Zseq, sequence=True, reference='A')[source]¶

Single Pole Open Fault Calculator.

This function will evaluate the Zero, Positive, and Negative sequence currents for a single pole open fault.

\[I_1 = \frac{V_{th}}{Z_1+(\frac{1}{Z_2}+\frac{1}{Z_0})^-1}\]

\[I_2 = -I_1 * \frac{Z_0}{Z_2+Z_0}\]

\[I_0 = -I_1 * \frac{Z_2}{Z_2+Z_0}\]

Parameters:¶

Vth : complex¶

The Thevenin-Equivalent-Voltage

Zseq : list of complex¶

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

sequence : bool, optional¶

Control argument to force return into symmetrical- or phase-domain values.

reference : {'A', 'B', 'C'}¶

Single character denoting the reference, or the faulted phase indicator; default=’A’

Returns:¶

Ifault – The Array of Fault Currents as (If0, If1, If2)

Return type:¶

list of complex,