DIAGNOSIS
Power Quality and System Operation
Share


 

DIAGNOSIS POWER QUALITY SYSTEM OPERATION
Certified Technical Consultant (Technology Innovation Management)
Certificate No. 1994-1063 · Registration No. 2659 · Validity 2022.05.18–2027.05.17

Power Quality and System Operation Diagnosis

We diagnose the operating condition of the power system and the characteristics of voltage and current through measurement-based assessment. We then analyze the root causes of abnormal symptoms and present improvement directions from an operational stability perspective.

01Scope

Define the Diagnostic Scope

We define the diagnostic scope based on incoming power, distribution, load, and grounding configurations, as well as operating conditions.

IncomingPanelsLoadsGrounding
02Measurement

Measurement Setup

We set measurement points, duration, and sampling conditions to ensure data reliability across different operating scenarios.

DurationIncluding operating scenarios
LocationsKey branches / loads
CriteriaStandards / internal rules
03PQ

Power Quality Analysis

We perform an integrated analysis of key power quality indicators such as harmonics, imbalance, power factor, and voltage variation.

THD / Harmonics
Imbalance
Power Factor
Voltage Variation
04Events

Event and Abnormal Symptom Assessment

We classify events such as voltage sags/swells, flicker, surges, and transients, and assess their characteristics and occurrence patterns.

Sag/SwellFlickerTransientSurge
05Operation

System Operation Evaluation

We evaluate system responses to operational patterns such as load variation, start/stop cycles, and inverter/VFD operation.

Load ProfilePeak / Off-peak
SwitchingStart / Stop
DriveVFD / Inverter
06Root Cause

Root Cause and Impact Review

We technically organize contributions from non-active current components, neutral/ground paths, and nonlinear loads, and review their operational impacts.

Non-activeNeutralGround PathNonlinear Loads
07Report

Diagnostic Report

We deliver a structured report covering measurement conditions, analysis results, technical rationale, and recommendations.

DELIVERABLES
  • Measurement setup and conditions (duration / locations / settings)
  • Summary of power quality indicators (trends / events)
  • Root cause analysis (contributions / paths / impacts)
  • Operational stability recommendations
NOTICE

This diagnosis is intended for a technical review of power system operating conditions and does not guarantee, predict, or assert specific energy savings or performance improvements.