electricpy.zpu¶

electricpy.zpu(S, VLL=None, VLN=None)[source]¶

Per-Unit Impedance Evaluator.

Evaluates the per-unit impedance value given the per-unit power and voltage bases.

$$Z_{pu}=\frac{V_{LL}^2}{S}$$

$$Z_{pu}=\frac{(\sqrt{3}\ast V_{LN}{)}^2}{S}$$

Parameters:¶

S : float¶

The per-unit power base.

VLL : float, optional¶

The Line-to-Line Voltage; default=None

VLN : float, optional¶

The Line-to-Neutral Voltage; default=None

Returns:¶

Zbase – The per-unit impedance base.

Return type:¶

float