DIAGNOSIS
Non-Active Current Analysis
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DIAGNOSIS NON-ACTIVE / ABNORMAL CURRENT COMPONENT ANALYSIS
Certified Technical Consultant (Technology Innovation Management)
Certificate No. 1994-1063 · Registration No. 2659 · Validity 2022.05.18–2027.05.17

Non-Active / Abnormal Current Component Diagnosis

We perform measurement-based analysis of non-active current components and the distribution of harmonics, imbalance, leakage, and neutral currents, and systematically summarize their causes and impacts from the perspective of power quality and operational stability.

01Definition

Define Categories of Abnormal Current

We categorize current components that do not contribute to active power transfer in non-sinusoidal environments and confirm measurement indicators (waveforms, components, and paths).

Non-activeHarmonicsUnbalanceLeakage
02Measurement

Set Measurement Conditions and Locations

We establish measurement configurations by operating condition at key points across the system.

LocationsIncoming · Panel · Load
ConditionsRun · Stop · Start-up
QualitySampling · Window
03Waveform

Waveform-Based Component Analysis

Based on distortion characteristics in current and voltage waveforms, we analyze the presence and behavior of harmonic and non-active components.

Harmonic Spectrum
Crest / Distortion
Phase Relationship
04Neutral

Neutral Current and Path Diagnostics

We review neutral current growth and path characteristics driven by triplen harmonic accumulation and the contribution of load imbalance.

Triplen HarmonicsNeutral CurrentPathAccumulation
05Leakage

Leakage and Grounding Observations

We observe potential differences across grounding paths, leakage current components, and noise trends, and organize their impacts in technical terms.

Ground PathPotentialLeakageNoise
06Root Cause

Root Cause and Contribution Analysis

We compare and summarize component-level contributions associated with nonlinear loads, inverters/VFDs, supply architecture, and wiring/grounding configurations.

Nonlinear LoadsVFD/InverterWiringGrounding
07Report

Analysis Report

We provide a structured report covering measurement conditions, component decomposition results, path and contribution analysis, and recommendations from an operational stability perspective.

DELIVERABLES
  • Measurement points, conditions, and settings (period, sampling)
  • Summary of waveform/spectrum-based component analysis
  • Comparison of neutral/ground paths and contribution levels
  • Operational stability recommendations (including constraints and assumptions)
NOTICE

This diagnosis is intended for a technical review of abnormal current components in power systems and does not guarantee, predict, or assert specific energy savings or performance improvements.