AC voltage is
sometimes expressed like 115/200 volts. This means 115V_{LN} a.k.a.
200V_{LL}.

V_{LN} = Line to Neutral Voltage (usually rms)

V_{LL} = Line to Line Voltage (usually rms)

Power Factor (PF) = The ratio of real power in watts (W) to apparent power in volt amps (VA). A resistive load has a power factor of 1. A capacitive load is leading (current leads voltage). An inductive load is lagging (current lags voltage).

Figure 1: Credit Wikipedia

Example:
Calculate phase current given V_{LL} and load power. To solve, the
voltage is converted to Line to Neutral and the power is split in equal thirds.