Power Quality Management and Electrical Safety Applications
In industrial equipment, buildings and facilities, as well as lighting and power supply systems,
non-sinusoidal loads and complex operating conditions can lead to degraded power quality and elevated electrical safety risks.
This section summarizes the scope with a focus on power quality indicator management and
application areas from an electrical safety perspective.
Power QualityElectrical SafetyHarmonicsNon-Active CurrentCondition-Based Analysis
1) Power Quality Management Perspective
Power quality management is a technical approach aimed at stable system operation and early identification
and management of electrical abnormal conditions, rather than a direct claim of energy savings.
Current Distortion (THD-I): Management of harmonic current components caused by non-linear loads
Voltage Distortion (THD-V): Verification of voltage waveform distortion during equipment operation
Unbalance and Neutral Current: Managing mixed environments with single-phase and multi-circuit loads
Non-Active Current Components: Analysis of circulating currents that do not contribute to active power transfer
Measurement Reliability: Review of potential distortion in measured values due to abnormal components
2) Electrical Safety Application Perspective
Electrical safety applications refer to a supplementary approach that helps maintain and manage system conditions
in a stable manner prior to the operation of protection devices.
Monitoring abnormal current conditions at cables, terminals, and connection points
Analyzing root causes of equipment malfunctions and repeated protective device trips
Condition-based management of leakage, harmonic, and unbalance currents
Securing diagnostic data for power system condition assessment from an electrical fire prevention perspective
