Protecting Sensitive Electronics
Poor power quality is a silent killer of industrial electronics. Harmonics, voltage sags, and transients can cause unexplained equipment failures, overheating of transformers, and data loss.
Our Power Quality Analysis uses advanced analyzers to monitor your electrical network, identify the root cause of disturbances, and recommend harmonic filters or stabilizers to ensure clean, reliable power.
What We Analyze
Harmonic Distortion
Measuring THD (Total Harmonic Distortion) to prevent equipment overheating and losses.
StandardsTransients & Spikes
Capturing microsecond voltage spikes that damage circuit boards and PLCs.
SolutionsPhase Unbalance
Ensuring balanced loads to protect 3-phase motors and generators from overheating.
LimitsVoltage Sags & Swells
Detecting voltage variations that trip sensitive equipment like VFDs and UPS systems.
MitigationPQA Study Process
A systematic approach to identifying and resolving power quality issues.
| Phase | Activities | Duration |
|---|---|---|
| Site Survey | Equipment inventory, critical loads identification, measurement points | 1 Day |
| Instrument Installation | Power quality analyzer setup, CT/PT connections, logging start | 1 Day |
| Monitoring Period | Continuous data logging, event capture, load cycle coverage | 7-15 Days |
| Analysis & Reporting | Data analysis, standards comparison, mitigation recommendations | 3-5 Days |
Power Quality Parameters & Limits
Measured parameters are compared against international standards to determine corrective actions.
| Parameter | Measured Values | Acceptable Limit | Standard Reference |
|---|---|---|---|
| Voltage THD (%) | Total harmonic distortion in voltage waveform | < 5% (IEEE 519) | IEEE 519-2022 §5.1 |
| Current THD (%) | Total harmonic distortion in current waveform | < 8% for general systems | IEEE 519-2022 §5.2 |
| Voltage Unbalance (%) | Phase-to-phase voltage deviation | < 2% (NEMA MG1) | NEMA MG 1-2016 §14.36 |
| Power Factor (pf) | Ratio of real to apparent power | > 0.95 (utility requirement) | Local utility regulations |
| Voltage Sags (duration) | Drop below 90% nominal voltage | Event logging for > 10ms | IEC 61000-4-30 Class A |
| Voltage Swells (duration) | Rise above 110% nominal voltage | Event logging for > 10ms | IEC 61000-4-30 Class A |
| Frequency Deviation (Hz) | Variation from 50 Hz nominal | 50 Hz ± 0.5 Hz | IEC 61000-2-2 |
