Vinamilk: Active Harmonic Filtering for Power Quality
An Active Harmonic Filtering deployment by ESEC at Vinamilk's Nghe An Dairy Factory, using Schneider Electric AccuSine+ with EcoStruxure Power Monitoring Expert to correct harmonic distortion and protect high-value process equipment.
Project background
The dairy factory's electrical system was experiencing high harmonic distortion during operation. Elevated harmonics were damaging high-technology electrical equipment, causing production downtime, and creating wider stress across the plant power system.
Approach
ESEC surveyed the electrical system and deployed an Active Harmonic Filtering solution based on Schneider Electric AccuSine+, integrated with the EcoStruxure Power Monitoring Expert (PME) platform for ongoing power-quality monitoring and monthly equipment-health reporting. Scope covered survey, filter supply, monitoring configuration, and commissioning at the Nghe An factory.
Outcomes
Power quality (harmonics) was brought into compliance with the international standard IEEE 519 and applicable Vietnamese regulations. Peak current was reduced, freeing system capacity; current distortion was limited and the negative effects of harmonics suppressed. Reduced harmonic-induced heating protected equipment and improved service life, while power-factor penalties were lowered. ESEC did not publish quantified percentage figures for this engagement.
Lessons learned
Power quality is a reliability problem before it is an energy-cost problem. Continuous monitoring (PME) turns a one-time filter install into a maintainable asset-protection program. Clean power underpins uptime for the sensitive process equipment used in food and pharmaceutical manufacturing.
How to use this page
Use this Vinamilk: Active Harmonic Filtering for Power Quality page as a planning checkpoint before vendor selection, architecture review, validation scoping or implementation sequencing. The strongest next step is to compare the guidance with your current SOPs, system inventory, batch records, data flows and QA review routines so the discussion starts from evidence instead of assumptions.
Evidence to prepare
For Vinamilk: Active Harmonic Filtering for Power Quality, prepare the records, owners, risks and decision criteria linked to project background, approach, outcomes, lessons learned. Useful evidence includes current process maps, interface lists, audit trail expectations, exception workflows, data retention rules and the business reason for changing the current operating model.
Frequently asked questions
What is Active Harmonic Filtering?
An Active Harmonic Filter continuously measures load current, detects unwanted harmonic components, and injects a compensating current 180 degrees out of phase to cancel them. This deployment used Schneider Electric AccuSine+ with EcoStruxure Power Monitoring Expert for monitoring and reporting.
What standard was the power quality measured against?
Power quality (harmonic distortion) was brought into compliance with IEEE 519 and applicable Vietnamese power-quality regulations. ESEC did not publish specific quantified savings figures for this engagement.
How does power quality relate to pharma manufacturing?
Harmonic distortion damages sensitive automation and process equipment and causes unplanned downtime. Correcting power quality protects validated equipment and supports the uptime and reliability required in GMP and regulated manufacturing.