LEGEND APF wall-mounting 100-150 A
Modern facilities are defined by complex, non-linear loads that degrade power integrity at the source. The Legend series is a sophisticated Active Power Filter that serves as your strategic defense of the facility. Legend delivers precise, real-time harmonic elimination and dynamic reactive power compensation for near-unity power factor.
Advantage: next-generation active power filtering
Innovative CT-less installation: enables full harmonic mitigation without the need for external current transformers, completely eliminating extra control cables for a simplified setup.
Comprehensive harmonic mitigation: eliminates up to 51 orders of harmonic currents generated by nonlinear loads, ensuring clean power delivery. Optional extended range up to the 71st harmonic.
Dynamic reactive power compensation: automatically corrects both lagging and leading power factors to optimize system efficiency.
Intelligent auto-sensing operation: automatically estimates the required compensation current – no manual supply impedance measurement or complex harmonic spectrum analysis required.
Advanced architecture: built on cutting-edge 3-level solid-state power converter technology for superior performance.
Unmatched versatility: broad voltage tolerance (157V – 528V) ensures stable harmonic mitigation in any electrical environment.
Intuitive control & seamless connectivity
10” colorful LCD touch screen: a user-friendly interface that puts full control at your fingertips. View real-time power parameters, waveforms, and spectrum analysis.
Deep system diagnostics: easily configure compensation settings and track system history with an expansive event log that records up to 1,200 data entries.
Universal communication: seamlessly integrate into your existing building management or SCADA systems via Ethernet (Modbus TCP), RS-485 (J-Bus/Modbus RTU), and USB interfaces.
Comprehensive contact options: includes dedicated inputs/outputs (3 sets out, 1 set in) and an emergency power off (EPO) switch connection for ultimate control and safety.
All-in-one design: built-in control module eliminates the need for any external controllers.
Built for Uncompromising Reliability & Safety
Real-time resonance detection: equipped with intelligent technology to detect and protect against harmonic resonance in real-time.
Smart overload prevention: if load harmonics exceed capacity, the system safely shifts into current-limiting mode rather than shutting down – eliminating the severe overload risks associated with traditional passive filters.
Auto-recovery overvoltage protection: automatically disables the module during abnormal voltage spikes and instantly restarts compensation once mains voltage normalizes.
Global Mode autonomous targeting: automatically identifies and selects specific harmonic orders to eliminate without manual configuration, while intelligent resonance protection continuously ensures network stability and safety.
Dynamic Force mode control: allows precise setting of a target Displacement Power Factor (range: 0.6 lagging to 0.6 leading), dynamically forcing leading capacitive loads into stable lagging inductive profiles.
Optimized thermal management: specially designed air inlets and cooling fans aggressively dissipate heat, preventing thermal damage and ensuring the system operates at full capacity.
Highly scalable & flexible design
Grow on demand: easily scale your power quality solution by operating up to 8 APF modules in parallel.
Streamlined parallel scalability: utilizes built-in internal communication between units to synchronize operation, eliminating the need for complex parallel CT wiring to reduce cabling and accelerate commissioning.
Zero-downtime maintenance: features an optional hot-swappable design, allowing modules to be removed or installed seamlessly without disconnecting the main power supply.
Versatile integration: compatible with 3-phase 3-wire and 4-wire setups, offering flexible current transformer placement on either the load side or power side.
Durable build: housed in a robust IP30-rated enclosure.
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Additional information
- Elimination of resonance risks: unlike passive filters, Legend is an active system that does not create a tuned circuit with your impedance of network. This prevents the dangerous amplification of harmonic currents, shielding sensitive electronics and capacitors from catastrophic resonance-induced damage.
- Total voltage integrity: by neutralizing harmonic currents at the source, APF Legend significantly reduces total voltage harmonic distortion (THDv). This ensures a clean, stable voltage waveform, preventing “flicker”, malfunction, or premature failure of downstream precision equipment.
- Enhanced thermal and energy efficiency: by filtering out the reactive and harmonic components of current, Legend lowers the overall RMS current flowing through your infrastructure. This directly reduces voltage drops and minimizes the temperature rise in transformers, switchgear, and cabling – extending the service life of your most expensive electrical assets.
- Dynamic power factor optimization: APF Legend provides instantaneous, step-less reactive power compensation to maintain a near-unity power factor. This maximizes system capacity, eliminates utility penalties, and ensures your facility operates at peak electrical efficiency regardless of load volatility.
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