Active Harmonic Filters

The D20 Active Harmonic Filter: All-in-One Power Quality

Stop dealing with fragmented power quality solutions. The LTEC D20 Active Harmonic Filter combines AHF, SVG, and Active Load Balancing (ALB) into one well-tailored package. It actively cleans your grid, corrects power factor, and balances three-phase loads simultaneously.

Installation has never been easier. The D20 operates independently and requires no additional CTs or external PFC controllers. It automatically detects voltage and frequency, supporting a wide range of 200–480 V for 3-wire applications and 200–440 V for 4-wire applications. You can also switch seamlessly between 50 Hz and 60 Hz networks. Built on an advanced 3-level topology with modular scalability, the D20 delivers a response time of less than 100 microseconds to keep your facility running smoothly.

 

Applications of Active Harmonic Filter

 

Data Centers & IT Facilities

Renewable Energy Integration

Healthcare Facilities

Oil & Gas Operations

• The Challenge: Heavy motor drives, VFDs, and CNC equipment generate severe harmonics and reactive power.
• The Solution: Actively mitigates harmonics and stabilizes voltage to prevent equipment overheating and downtime.

• The Challenge: UPS systems and server racks are highly sensitive to power pollution and phase imbalances.
• The Solution: Ensures ultra-clean power and balances three-phase loads to protect critical IT infrastructure.

• The Challenge: Solar inverters and wind turbine converters introduce high-frequency harmonics into the grid.
• The Solution: Filters out pollution before grid connection, ensuring strict compliance with utility standards.

• The Challenge: Medical imaging equipment and critical care devices require flawless, uninterrupted power.
• The Solution: Eliminates power quality issues instantly, safeguarding patient safety and sensitive diagnostics.

• The Challenge: Smart buildings with LED lighting and HVAC systems suffer from neutral overloads and poor power factor.
• The Solution: Improves overall power quality and prevents neutral wire overheating.

• The Challenge: Metro traction systems and EV charging stations cause extreme voltage fluctuations.
• The Solution: Provides dynamic voltage support and fast harmonic mitigation for reliable transit operations.

• The Challenge: Offshore platforms and refinery equipment operate in harsh conditions with unstable grids.
• The Solution: Maintains rock-solid power stability to prevent costly operational disruptions.

Effortless On-Site Commissioning

Our AHF units are designed for plug-and-play deployment. As shown, engineers can configure parameters directly via handheld tools - no external controllers or complex wiring required. Auto-detection of voltage and frequency ensures seamless integration into any 3-wire or 4-wire system.

Scalable Modular Design for Future Growth

Each unit is rated at 25A, 50A, 100A, 150A, or 200A and can be stacked vertically to meet your facility's evolving power quality needs. The modular architecture allows for easy expansion without system downtime - ideal for data centers, factories, and renewable energy plants planning phased upgrades.

Superior Thermal Efficiency & Safety Compliance

Engineered with high-efficiency cooling fans and robust thermal management, our AHF minimizes heat dissipation and reduces operating costs. Clear safety warnings and industrial-grade components ensure compliance with international standards, guaranteeing reliable performance in harsh environments like oil rigs, refineries, and heavy manufacturing.

Why Choose LTEC's Active Harmonic Filter?

⚡ Military-Grade Dynamic Response

🧩 Modular Scalability & Hot-Swappable Design

🤖 AI-Powered Optimization

🛡️ Industrial-Grade Durability

🌐 Smart Grid Integration

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