Connected Loads vs. Actual Phase Balance Analysis

Data Quality Improvement

Errors in meter-to-phase assignation can result from inaccurate data about the phase the energy consumer connects. Such errors adversely influence grid operations & outage management or can lead to misjudgement in terms of Asset Management, for example, connection request handling.

The Utility Problem

The GIS data quality is a top-priority issue for many electrical distribution utility professionals. Among the GIS data quality issues, meter-to-phase assignment (or meter-to-phase identification) is one of the most prominent. Errors in meter-to-phase assignation mean that the utility system record contains wrong information about what phase the energy consumer is connected to. Errors in meter-to-phase assignation adversely influence grid operations and outage management or can lead to misjudgement in terms of Asset Management, for example, connection request handling. 

To solve and correct meter-to-phase assignation, the utilities use multiple different approaches. These approaches vary in various aspects, such as effort needed, scale or resolution. One of the broadly used approaches in meter-to-phase assignation correction is to assess the level of wrongly assigned meters on a feeder level. This method compares feeder-connected kW per phase vs. phase balance load at the top of the feeder. 

Analysis based on this approach allows utilities to target areas where efforts for detection, verification and correction have the highest impact. Such studies allow utilities to allocate resources where they will achieve the highest added value. 

 

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