Platform/Power quality

Power quality

Harmonic distortion, unbalance, flicker and power factor measured and analysed continuously, with per-phase comparison and period statistics.

Explore, compare, substantiate

The Power Quality Analytics module generates the charts and historical analysis for power quality indicators. It lets you explore trends, compare behaviour across phases and read the statistics that substantiate diagnoses and corrective decisions: capacitor banks, filters, load balancing.

An analysis is defined by period, granularity and measurement point; the Chart selector picks the indicator and Select data runs the query.

Use 30 or 60-minute aggregation for long periods; 1, 5 or 10 minutes for fine-grained event and peak analysis.

Available indicators

  • Power factor
  • Flicker (PST and PLT)
  • Voltage and current unbalance
  • Total harmonic distortion of current (THD)
  • Total harmonic distortion of demand (TDD)
  • Harmonic component group
  • Individual harmonic components, even and odd

From measurement to corrective decision

Each indicator comes with its headline statistic, its trend and a per-phase comparison — the key to knowing whether a problem is system-wide or localised.

Power quality readings dashboard
Power quality readings for the last 24 hours: power factor and total harmonic distortion.
Voltage and current unbalance trends
Voltage and current unbalance with 95th percentile and last reading.

What the analysis enables

  • Trends: evolution, gradual degradation and recurring events.
  • Patterns: by hour, day, week or operating cycle.
  • Per-phase comparison: identifies asymmetry and locates the dominant phase.

Decisions it supports

  • Power factor with a falling P5: sizing or adjusting capacitor banks.
  • High or spiking THD: evaluating active or passive filters.
  • Growing unbalance: load balancing, reviewing connections and protection.
  • Repetitive flicker: correlation with cyclic loads and operational coordination.

Harmonics and period statistics

The statistical module accumulates behaviour across the period, separating momentary noise from a real trend.

Current harmonic distortion at the connection point
Current THD and imbalance at the connection point, against the Grid Code limit reference.
Individual harmonic components
Individual harmonic components and total harmonic distortion per phase.

A diagnosis from your own measurements

Request a power quality study for your plant.

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