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Unlock Clearer Power Quality Insights with Per-Unit Graphing in Canvass

This white paper explores the per-unit graphing feature in Canvass, a web-based power quality portal by Power Monitors, Inc. Per-unit scaling enables users to compare voltage data from devices with different nominal voltages on a unified, normalized graph. The paper details how per-unit graphing enhances visibility of voltage variations, simplifies interpretation, and supports more effective analysis across diverse monitoring points. Practical usage, benefits, and limitations of per-unit graphing within Canvass are discussed.

Key topics include:

- Definition of Per-Unit System
- Application in Canvass
- Advantages of Per-Unit Scaling
- Switching to Per-Unit Mode

Why utilities should care:
Per-unit graphing enables rapid, accurate comparison of voltage data from multiple sources with differing nominal voltages, improving anomaly detection and operational decision-making. Enhanced data clarity supports more effective power quality management and streamlined analysis workflows.


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