electricpy.phaseline¶

electricpy.phaseline(VLL=None, VLN=None, Iline=None, Iphase=None, realonly=None, **kwargs)[source]¶

Line-Line to Line-Neutral Converter.

This function is designed to return the phase- or line-equivalent of the voltage/current provided. It is designed to be used when converting delta- to wye-connections and vice-versa. Given a voltage of one type, this function will return the voltage of the opposite type. The same is true for current.

(1)¶

V_{L L} = \sqrt{3} ∠ 30 ° * V_{L N}

Typical American (United States) standard is to note voltages in Line-to-Line values (VLL), and often, the Line-to-Neutral voltage is of value, this function uses the voltage (1) relation to evaluate either voltage given the other.

(2)¶

I_{Φ} = \frac{I_{l i n e}}{\sqrt{3} ∠ 30 °}

Often, the phase current in a delta-connected device is of particular interest, and the line-current is provided. This function uses the current (2) formula to evaluate phase- and line-current given the opposing term.

Parameters:¶

VLL : float, optional¶: The Line-to-Line Voltage; default=None
VLN : float, optional¶: The Line-to-Neutral Voltage; default=None
Iline : float, optional¶: The Line-Current; default=None
Iphase : float, optional¶: The Phase-Current; default=None
realonly : bool, optional¶: Replacement of complex argument. Control to return value in complex form; default=None
complex : bool, optional, DEPRECATED: Control to return value in complex form, refer to realonly instead. default=None

Examples

>>> import electricpy as ep
>>> ep.cprint(ep.phaseline(VLL=(13.8*ep.k))) # 13.8kV
7967.434 ∠ -30.0°