Common Issues Caused by Harmonics

Harmonic Mitigation Solutions

PowerMore designs and deploys solutions for each real-world application

01.System Survey & Measurement
  • Identify key measurement points (PCC, distribution cabinets, major loads)
  • Collect actual operating data of the system
  • Conduct a preliminary assessment of the current condition and abnormal signs
02.Analysis & Root Cause Identification
  • Analyze harmonic data (TDD, THDv, imbalance, resonance)
  • Identify interference sources: inverters, UPS, renewable energy systems, ...
  • Assess the level of impact on equipment and operation
03.Design a Suitable Solution
  • Select the appropriate filtering technology (Active, Passive, or Hybrid) according to the system from medium voltage to low voltage
  • Simulate the system to evaluate effectiveness before deployment
  • Optimize between technical effectiveness, investment cost, and equipment durability
04.System Deployment & Acceptance
  • Install and configure according to actual operating conditions
  • Coordinate with the operation team to ensure stable system operation
  • Inspect and accept according to relevant standards
05.Long-Term Monitoring & Optimization
  • Monitor effectiveness after being put into operation
  • Adjust to maintain stable efficiency over time
  • Support plant engineers in maintenance and troubleshooting when needed

Ba Na Hills Resort | Deployment of Comsys ADF Active Harmonic Filter

PowerMore surveyed and assessed the harmonic conditions in the cable car system at Ba Na Hills and deployed the ADF – Comsys harmonic filter system. The solution helps address current and voltage distortion, while improving power factor and enhancing operational stability for the system at Station 6 – Ba Na Hills.

Ba Na Hills Resort | Deployment of Comsys ADF Active Harmonic Filter
Ba Na Hills Resort | Deployment of Comsys ADF Active Harmonic Filter
PowerMore surveyed and assessed the harmonic conditions in the cable car system at Ba Na Hills and deployed the ADF – Comsys harmonic filter system. The solution helps address current and voltage distortion, while improving power factor and enhancing operational stability for the system at Station 6 – Ba Na Hills.
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Hoa Phat Dung Quat | Deployment of 35kV Medium-Voltage Harmonic Filter System
Hoa Phat Dung Quat | Deployment of 35kV Medium-Voltage Harmonic Filter System
In response to urgent requirements for power quality and operational safety, PowerMore deployed a 35kV medium-voltage harmonic filter system to eliminate harmonics directly at the source. The solution was designed with a high-pass harmonic filter configuration for the 5th, 11th, and 23rd harmonic orders.
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CTR Vina | Deployment of Active Harmonic Filter for Variable Frequency Drive System
CTR Vina | Deployment of Active Harmonic Filter for Variable Frequency Drive System
With experience in the field of power quality, PowerMore deployed a hybrid harmonic mitigation solution, combining the advantages of passive filtering and active filtering. This solution helps reduce harmonics in the electrical system while supporting more stable system operation.
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ICT Vina | Deployment of Revcon RHF Active 100A Active Harmonic Filter
ICT Vina | Deployment of Revcon RHF Active 100A Active Harmonic Filter
Deployment of the Revcon RHF Active 100A active harmonic filter at locations where THDi was >12% due to variable frequency drives, helping reduce THDi to below 5%, in compliance with IEEE 519 and the requirements of Circular 05/2025/TT-BCT.
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Vinamilk | Deployment of 12 Active Harmonic Filters (AHF) with a Total Capacity of 1,800A
Vinamilk | Deployment of 12 Active Harmonic Filters (AHF) with a Total Capacity of 1,800A
The project also demonstrates that harmonic control is not merely a standalone technical requirement, but part of a sustainable operation strategy in the F&B industry. For factories with high operating intensity, large nonlinear loads, and strict requirements for operational continuity, power quality is a fundamental condition for maintaining production efficiency.
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