Product Overview: HertzKron HK-DRL Series Low-Voltage Filter Reactor

High-Performance Harmonic Suppression & Precision Capacitor Protection.

In modern industrial power systems, non-linear loads (such as Variable Frequency Drives, converters, and LED lighting) inject heavy harmonic currents into the electrical grid. The HertzKron HK-FRL Series Low-Voltage Filter Reactor is specifically engineered to safeguard your Power Factor Correction (PFC) systems and passive filter branches. By establishing a precise detuning/tuning frequency, it effectively prevents harmonic resonance, absorbs dangerous harmonic distortions, and guarantees grid structural stability.

Engineering Logic & Core Advantages

🎯 1. Anti-Resonance & Precision Harmonic Mitigation

When capacitors and grid transformers create a parallel resonant circuit at harmonic frequencies, current spikes can easily catastrophically destroy power gear. The HertzKron HK-FRL series shifts the resonance frequency of the power system securely below the lowest dominant harmonic (typically the 3rd or 5th order). This completely eliminates the harmonic "Amplification Effect," safely shielding your connected capacitor banks from overheating and premature insulation degradation.

🌀 2. Advanced Vacuum Pressure Impregnation (VPI) Technology

Acoustic noise and mechanical vibrations are major indicators of poor reactor construction. Every HertzKron HK-FRL reactor undergoes a rigorous Vacuum Pressure Impregnation (VPI) process utilizing high-grade polyester resin. This results in:

• Ultra-Quiet Operation: Noise levels are strictly kept below 45dB, meeting premium building and factory environment standards.

• Environmental Resistance: Provides seamless protection against industrial moisture, conductive dust, and chemical erosion.

• Thermal Dissipation: Maximizes internal heat transfer to the aluminum casing, securing a prolonged service life.

⚡ 3. Ultra-High Linearity (1.8x Rated Current Protection)

Unlike standard economy reactors that saturate under high electrical loads, HertzKron heavy-duty engineering ensures a magnetic linearity of 1.8 times the rated current (I_lin >= 1.8 x In). This means that even during transient overcurrent events or maximum harmonic distortion peaks, the inductance value remains perfectly stable, and the cold-rolled silicon steel core refuses to saturate.

🔥 4. Extreme Thermal Endurance (Class H Insulation)

We utilize premium Class H (180°C) insulation materials as our baseline manufacturing standard. This advanced material profile allows the HK-FRL reactor to easily withstand the severe thermal loads generated continuously by high-frequency harmonic currents without degrading the winding insulation, significantly outperforming standard Class F units found in the market.

Essential Technical Specifications

• Brand: HertzKron

• Series Model: HK-FRL Series (Low-Voltage Filter Reactor)

• Nominal System Voltage: 400V, 415V, 440V, 480V, 525V AC (50/60Hz Adaptive)

• Detuning/Tuning Factors: 5.67% (210Hz), 7% (189Hz), 14% (134Hz) for 50Hz grids

• Inductance Tolerance: Precision locked within plus or minus 3% (+/- 3%)

• Core Material: High-permeability, ultra-low-loss cold-rolled silicon steel laminations

• Winding Material: High-purity Copper or premium Aluminum foil conductors

• Thermal Protection: Integrated internal micro-switch (Normally Closed type, 120°C to 150°C triggering threshold)

• Design Life: Greater than 15 years of continuous industrial operations

Selection Guide: 7% Factor vs. 14% Factor

• 7% Filter Reactors (189Hz): The absolute industrial standard for distribution grids dominated by 5th and 7th harmonics (such as standard 6-pulse motor drives, heavy industrial manufacturing machinery).

• 14% Filter Reactors (134Hz): Specifically optimized for grids heavily polluted with 3rd harmonic content (such as single-phase non-linear loads, large data centers, UPS systems, and heavy commercial office lighting).

International Compliance & Certifications

Engineered for global export and high-spec international industrial bids, the HertzKron HK-FRL series fully complies with the following global standards:

• CE Marked: Certified for European Low Voltage (LVD) and EMC Directives.

• EAC Certified: Fully approved for Eurasian Customs Union and Middle Eastern project specifications.

• Standard Compliance: IEC 60076-6, EN 60076-6 (Power Reactors baseline).

• Environmental: RoHS 2.0 Certified and REACH Compliant for eco-friendly operations.

Applications

• Automated Harmonic Filter Banks and APFC Cabinets (Paired with HK-PCL Heavy-Duty Capacitors)

• Passive Harmonic Filter Systems for Industrial Sub-stations

• Heavy Industrial Plants (Automotive, Steel Mills, Oil & Gas Complexes, and Mining Networks)

• Commercial Hubs, Data Centers, and Smart Infrastructure with Massive Electronic Loads