7EN02-0390-03

Disturbance direction detection overview

Your meter has disturbance direction detection capabilities to help you determine the location of a power system disturbance.

When a disturbance occurs, the meter analyzes the disturbance information to determine the direction of the disturbance relative to the meter. This analysis includes a confidence level indicating the level of certainty that the disturbance is in the determined direction, and is stored in your meter’s event log.

Disturbance direction detection is enabled on your meter by default and does not require any additional configuration beyond setting the nominal voltage and nominal frequency.

Disturbance direction detection can help locate the source of a disturbance when used in a system of disturbance direction detection devices. In the diagram below, meters (B), (C) and (D) are installed on the power consumer side, while meter (E) is installed on the utility side.

  1. Disturbance location

  2. Meter (B) reports downstream disturbance

  3. Meter (C) reports upstream disturbance

  4. Meters (D) report upstream disturbance

  5. Meter (E) reports downstream disturbance

The arrows show the direction the meters have determined for the disturbance. With this information, you can determine that the disturbance occurred between meter (B) and meter (C), and can focus on that section of your system to find the cause of the disturbance.

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