Bus Voltages
Voltage results are displayed at the right end of a bus and consist of 
VTHD, 
VRSS, 
Telephone Interference Factor, and 
VSUM. These are calculated using:
Notes on Voltage Displayed
When Harmonics Options > Control is set to calculate based on Positive Sequence, the voltage THD values displayed are positive sequence values. When the option is set to calculate based on Positive Sequence with Zero Seq. Triplens, the voltage THD values displayed are zero sequence values.
The phase voltage for systems with harmonics zero sequence currents can be calculated from the sequence voltages:
Vph = (V1 + V2 +V0) / 3
