Dear Customers and Partners, As China’s National Day approaches, YT Electric would like to express our sincere appreciation to all customers, distributors and partners for your continued trust and support. Please be informed that our office will be closed for the China National Day Holiday from October 1 to October 7, 2026. During this period, responses to emails, technical inquiries and ord...
High-density data centers, semiconductor fabs, and offshore platforms expose a weakness in many silicon-based active harmonic filters (AHF) and static var generators (SVG): the correction target moves faster than the thermal design. At 20–25.6 kHz, a conventional silicon IGBT converter can correct current distortion, but switching loss, 45°C full-load temperature rise, heatsink volume, a...
Centralized or Distributed Compensation? How to Place AHF and SVG in Multi-Transformer Facilities In modern industrial complexes, continuous process plants, chemical refineries, automotive manufacturing hubs, and large commercial campuses, electrical power is distributed via multi-transformer substations (often configured as Main-Tie-Main or dual-ended secondary selective substations). A standard ...
Harmonic Resonance in Data Center UPS Eco-Mode: AHF vs Active Line Conditioning Hyper-scale enterprise data centers and colocation cloud facilities are under relentless pressure to optimize Power Usage Effectiveness (PUE) and reduce megawatt-scale operational electricity costs. To capture energy savings of 2% to 4% across large uninterruptible power supply (UPS) fleets, engineering managers increa...
Do VFDs Improve Power Factor? Displacement PF, True PF, and Harmonics Explained Variable frequency drives (VFDs) are often described as having a high power factor. That can be correct and still be misleading. A VFD may have little phase shift but draw pulsed input current, creating harmonics that reduce true power factor. The result is a common contradiction: one meter displays a cos φ close t...
Installing an Active Harmonic Filter (AHF) or Static Var Generator (SVG) requires more than simply choosing current or kVAr ratings. In facilities with multiple transformers or bus sections, physical placement directly determines compensation performance. Deciding between one large centralized unit at the main bus or several smaller distributed units near individual loads depends on your electrica...