Conductor Properties

Use Conductor properties to modify the conductor impedances used in the Voltage Drop and Fault Calculation.

Secondary Circuit Analysis uses conductor impedances from MMENG_CONDUCTOR_ELEC, looked up in the following order:

Size, Material and Insulation Type
Size and Material
DEFAULT
First row

If a conductor’s size, material and insulation type has a match in MMENG_CONDUCTOR_ELEC, then Secondary Circuit Analysis tool uses the match.

If it fails to find a match, the tool looks for a match on just size and material and if a match exists, it uses that.

If it still fails to find a match, the tool looks for an MMENG_CONDUCTOR_ELEC entry with a type of DEFAULT, and if a match exists, it uses that.

If that also fails, it uses the first row of the MMENG_CONDUCTOR_ELEC table.

To access the Conductor Properties menu, right-click a conductor in the Secondary Circuit Analysis window and select Properties from the resulting menu.

Here you can modify the conductor type and length to automatically recompute the impedance values. Uncheck the AutoCompute Impedances checkbox to modify resistance values for impedance.

NOTE: Secondary Circuit Analysis does not carry or recognize phase information on conductors. The number of phases on a conductor is determined by its transformer. This is true even if the conductor is imported from GIS and has GIS attributes indicating phase information or if conductor phasing information is present in the description field of the conductor lookup tables. Secondary Circuit Analysis ignores ALL phase information on a conductor and allows the transformer phases to imply the phases for the circuit.