LQLVF 150kVA/2*394.7A Power Noise Filter: High-Current EMI Suppression for Switchgear Systems

Premium Noise Attenuation Performance

Engineered for critical EMI suppression in 0.38kV industrial power systems:

• 40KHz-100KHz range: >40dB attenuation

• 100KHz-1MHz range: >60dB attenuation

• Optimized for 50Hz industrial frequency

• Broadband noise suppression for sensitive equipment

Technical Specifications

High-Current Dual-Circuit Design

Robust engineering for demanding industrial applications:

• 789.4A total current capacity (2×394.7A)

• Low-impedance copper busbar design (≤0.1mΩ)

• Copper windings with 200% short-circuit withstand

• Dynamic load response time <5ms

• Parallel operation capability for higher current needs

Switchgear Integration Design

Optimized for substation cabinet installations:

• Compact form factor for retrofitting existing switchgear

• Front-access terminals for easy maintenance

• Vibration-resistant mounting system

• Thermal management optimized for enclosed spaces

• Standardized cable entry points (50mm knockouts)

• Forced-air cooling compatibility

Enhanced High-Frequency Attenuation

Superior EMI suppression for sensitive electronics:

• >60dB attenuation above 100kHz

• Multi-stage LC filtering topology

• Harmonic resonance damping technology

• Frequency-stable reactors (±0.8% across load range)

• Core saturation protection during transients

Industrial Applications

Ideal for 0.38kV systems in:

• Industrial substation switchgear

• High-power motor control centers

• Foundry and smelting power distribution

• Large-scale compressor stations

• Manufacturing plant power systems

• Critical facility power conditioning

Safety & Protection Systems

Engineered for reliable high-current operation:

• Arc-resistant containment barriers

• Class H insulation system (180°C rating)

• Thermal overload protection with auto-reset

• Surge protection (15kV/20μs withstand)

• Ground fault monitoring with alarm contacts

• IP54-rated enclosure for dust/moisture protection

Installation & Maintenance Protocol

Ensure optimal performance in switchgear applications:

1. Verify switchgear compartment dimensions ≥600×500×800mm

2. Use copper busbars with ≥50kA SCCR rating

3. Maintain minimum 100mm clearance for airflow

4. Torque power terminals to 75 N·m ±5%

5. Perform quarterly thermal imaging scans

6. Test insulation resistance annually (≥100MΩ at 2.5kV DC)

7. Monitor attenuation performance every 24 months

Compliance & Standards

Designed to meet international requirements:

• IEC 61000-3-12 harmonic emissions

• IEEE 519-2022 harmonic control

• EN 62271-200 switchgear standards

• IEC 60076-6 reactor requirements

• ANSI C84.1 voltage ratings

• RoHS 3 compliance

For switchgear integration guides or custom high-current solutions, contact our engineering team. Performance validated per IEC 61000-4-7 measurement standards.