Using the Conductor Impedance Mismatch Tool

The Conductor Impedance Mismatch Tool performs an analysis to find sections of the network where conductor impedances look incorrect. For example, if a circuit backbone was primarily large conductors with a very small conductor in the middle, this would most likely be representative of a data error in the attribution of conductor sizing.

The tool works in the background and it is recommended to run this tool during the NMS off‑peak working hours to minimize the impact on system performance. Also, the analysis runtime should be chosen such that it stops before NMS peak hours.

Conductor Impedance Mismatch Tool Window

Conductor impedance mismatch tool window displays the report of data anomalies within the Power Flow data model and provides the interface to start and stop the conductor impedance mismatch analysis.

Menu and Toolbar Options

File Menu

Menu Option	Description	Toolbar Icon
Print...	Opens the Print dialog box, which allows to print the report.
Exit	Closes the Conductor Impedance Mismatch Tool window.	--

Actions Menu

Menu Option	Description	Toolbar Icon
Run Analysis...	Opens the Feeder Data Analysis dialog box, which allows you to input the analysis runtime in minutes.
Stop Analysis...	Stops the feeder data analysis if it has not already finished and displays the report in the table.
View...	Displays the selected conductor in the viewer.
Copy	Copies selected rows.
Purge Analysis Results...	Opens a confirmation dialog box that allows you to purge old analysis results.

Help Menu

Menu Option	Description	Toolbar Icon
Conductor Impedance Mismatch Analysis Tool Help	Opens the online help system to the Conductor Impedance Mismatch Tool help content.	--

Understanding the Conductor Impedance Mismatch Tool Filter Pane

The Conductor Impedance Mismatch Tool provides the following Global filters:

Global Filter	Description
All	Shows all conductors with impedance mismatches.
Confirmed Correct	Shows all conductors whose impedance mismatches are confirmed correct.
Confirmed Error	Shows all conductors whose impedance mismatches are confirmed error.
Confirmed Error and New	Shows all conductors whose impedance mismatches are confirmed error and all new mismatches.
New	Shows all new conductor impedance mismatches.

Conductor Impedance Mismatch Tool Report

The conductor impedance mismatch tool report has following columns:

1. Feeder: Name of the feeder where the mismatched conductor is found.

2. Phase: Phase of the feeder where the mismatched conductor is found.

3. Conductor: Name of the mismatched conductor.

4. Conductor Catalog: Name of the catalog of the mismatched conductor.

5. Connected Conductor: Name of the conductor against which mismatched conductor is compared.

6. Connected Conductor Catalog: Name of the catalog of the conductor against which mismatched conductor is compared.

7. Percent Difference: Percentage impedance difference between the mismatched conductor and the connected conductor.

8. Error Type: Name of the possible error type.

Note: If needed, you can select multiple rows within the report and copy and paste to an external application.

The status bar indicates the number of rows in the report and includes an indicator that spins when calculations are in progress.