Active Harmonic Filtering & Harmonic Governance Retrofit for No.3 Transformer of a Jiangsu Automotive Interior Material Co., Ltd.
Project Overview
The workshop of a large automotive interior material manufacturer in Jiangsu mainly adopts high-power frequency converters and motors as electrical loads. Such equipment generates massive harmonics during operation, leading to excessive harmonic distortion in the power grid. This results in frequent fault alarms and shutdowns of on-site inverters, severely disrupting normal production.
Solution
Based on on-site surveys and comprehensive analysis of power quality test data, our company provides a power quality optimization solution by installing active harmonic filters to suppress harmonics and improve overall power grid quality.
Application Effect
After installation and commissioning, all equipment runs reliably with the system power factor maintained above 0.96. Under full-load operating conditions, the active filter effectively eliminates harmonic current, with no harmonic rise even when the load current reaches its peak, delivering outstanding filtering performance. The total harmonic current distortion (ITHD%) is reduced from 42% to 2.3%, fully meeting all the customer’s harmonic control requirements.
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