Bus Voltages

Voltage results are displayed at the right end of a bus and consist of V_THD, V_RSS, Telephone Interference Factor, and V_SUM. 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:

V_ph = (V₁ + V₂ +V₀) / 3  

More Information

• Harmonics
• Tutorial - Harmonics Analysis