Overview
IEC TR 63222-100:2023 - Power quality management, Part 100 is a Technical Report that collects case studies, research findings and reference material on how power quality disturbances affect electrical equipment, installations and power systems. Rather than setting mandatory thresholds, the report synthesizes evidence from sources such as CIGRE reports and experiments to explain mechanisms of impact and to provide guidance for rational investment, operation and cooperation among network operators, network users and equipment suppliers. Key intents are improving reliability, reducing losses and aligning power quality with relevant EMC standards.
Key topics and technical guidance
The report comprehensively addresses continuous and discontinuous power quality phenomena and their consequences:
- Continuous disturbances
- Harmonic distortion - effects on losses, heating, relay operation and equipment lifetime
- Voltage unbalance - motor derating, increased losses, neutral currents and transformer stresses
- Voltage deviation (under‑/over‑voltage) - impact on energy efficiency, transformer iron/copper losses and LED lighting
- Frequency deviation - equipment behaviour, protection and system stability
- Flicker and rapid voltage change - influence on motor life, capacitor aging and process stability
- Discontinuous disturbances
- Voltage dips and short interruptions - tolerance of PLCs, relays, contactors and industrial sensitive loads (includes voltage tolerance curves and sensitivity analysis)
- Voltage swells and transient over‑voltages - insulation stress, surge interaction cases and energization events
- Practical assessment tools
- Case analyses, figures (e.g., ITIC/CBEMA curve), indices and loss estimation methods for assessing impacts and prioritizing mitigation.
- The report also collates reference documents and experimental results to support technical decision‑making.
Applications and who should use it
IEC TR 63222-100 is valuable for:
- Network operators evaluating system losses, planning mitigation and negotiating service levels
- Equipment manufacturers and suppliers assessing design margins, EMC compliance and warranty risk
- Industrial and commercial users performing sensitivity analysis for critical loads and specifying immunity requirements
- Consultants and researchers developing mitigation strategies (filters, UPQC, ride‑through solutions), asset‑management plans and power‑quality monitoring programs
- Regulators and planners seeking evidence‑based guidance for standards alignment and investment justification
Related standards
- The Technical Report is intended to be used alongside EMC and power quality standards and commonly referenced compatibility curves (e.g., ITIC/CBEMA). It summarizes practical interactions with existing IEC power quality guidance and committee reports to help align installations with recognized EMC requirements.
Keywords: IEC TR 63222-100:2023, power quality management, voltage dip, harmonic distortion, voltage unbalance, flicker, transient over‑voltages, power system, EMC standards.