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ENGINEERED IN NAIROBI, KENYA
SUResourcesSolar & UPS Intelligence Hub
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Audience
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  4. Power Quality

Power Quality

Enter site readings; the page returns voltage and harmonic compliance against EN 50160 / IEEE 519 with a 24-hour envelope and prioritised recommendations.

Step 1

Site measurements

Enter readings from the meter, oscilloscope, or power-quality analyser. Sample defaults shown.

Voltage
218V
Voltage THD
6.4%
Current THD
14.5%
Frequency
49.70Hz
24 h profile

Voltage envelope

±10 % band: 207 V – 253 V

Demo data
Voltage
values in V
Disturbances

Sag / swell tally

Sags per day7 events/ 20 events
Swells per day2 events/ 20 events
Flicker (P_st short-term)1.20/ 3
Findings

Recommendations

  • Voltage outside ±5 % band
    Add an AVR / line-conditioner; protect electronics from premature capacitor failure.
  • Voltage THD elevated
    Look for upstream non-linear loads (VFDs without filters). Consider passive harmonic filter.
  • Current THD elevated
    Likely cause: switched-mode supplies + LED drivers. Mitigate at source or with K-rated transformer.
  • High sag count
    Servers / refrigeration must sit behind UPS with 0 ms transfer. Audit critical-load wiring.
ENG
Engineer-only section

Pro · standards & limits — switch to Pro mode to view.

Use this with

Connected workflow

The same harmonics + voltage logic drives the cockpit Smart Sizing Simulator. Pair this dashboard with Diagnostics and Abuse Predictor when investigating premature failures.

One platform · 16 tools

Connected workspace

Continue the engineering loop — sizing, audit, intelligence, diagnostics, solar/UPS, library.

  • VerifierCombination VerifierOpen →
  • SimulatorSmart SizingOpen →
  • AuditQuotation AuditOpen →
  • CatalogueProduct IntelligenceOpen →
  • InstallInstallation VisualizerOpen →
  • AuthenticAuthenticity CheckOpen →
  • MaintainMaintenance PlannerOpen →
  • SafetySafety & FireOpen →
  • AbuseAbuse PredictorOpen →
  • LifecycleLifecycle CostOpen →
  • Docs PackDocumentation PackOpen →
  • LearnLearning ModeOpen →
  • DiagnosticsDiagnosticsOpen →
  • Solar/UPSSolar & UPSOpen →
  • LibraryLibraryOpen →
Sample values labelled Demo data·Hub v1.0.0-rc.1·staging·Reviewed 2026-05-03·Audit trail