LQLVF 160kVA/2x266.7A Power Noise Filter: High-Voltage EMI Suppression for Switchgear Systems

Premium HV Noise Attenuation

Engineered for critical EMI suppression in 3kV industrial power systems:

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

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

• Filter reactor quality factor: >70

• Dual-frequency compatibility (50-60Hz)

• Verified per IEC 61000-4-7 measurement standards

Technical Specifications

High-Voltage Design Features

Specialized engineering for 3kV applications:

• 533.4A total current capacity (2×266.7A)

• Enhanced creepage distance: ≥25mm/kV

• Corona-free design up to 3.6kV operational voltage

• Partial discharge inception voltage >4.2kV

• Class H insulation system (180°C rating)

Switchgear Integration Design

Optimized for HV switchgear cabinet installations:

• Heavy-duty 280kg construction for vibration resistance

• Standardized mounting points for retrofitting

• Front-access terminals with safety shrouds

• Thermal management for enclosed high-heat environments

• HV cable entry points with silicone rubber grommets

• Forced-air cooling compatibility

Advanced Filter Reactor Technology

High-performance components for superior EMI suppression:

• Quality factor >70 for precise frequency targeting

• Grain-oriented silicon steel core

• Vacuum pressure impregnated windings

• Embedded RTD sensors for temperature monitoring

• Frequency-stable design (±0.5% across 50-60Hz range)

Industrial Applications

Ideal for 3kV systems in:

• Industrial HV switchgear installations

• Mine power distribution centers

• Marine vessel power systems

• Railway traction substations

• Large motor drive systems

• High-voltage test laboratories

Safety & Protection Systems

Engineered for reliable HV operation:

• Arc-resistant containment chambers

• Over-temperature protection with lockout

• Surge protection (20kV/20μs withstand)

• Ground fault monitoring with isolated relays

• Automatic discharge circuits

• IP55-rated enclosure for harsh environments

Installation & Maintenance Protocol

Ensure optimal performance in HV switchgear:

1. Verify cabinet dimensions ≥700×600×900mm (W×D×H)

2. Use silicone-insulated HV cable (8kV rating minimum)

3. Maintain minimum 150mm clearance to grounded surfaces

4. Torque HV terminals to 100 N·m ±3%

5. Perform semi-annual power factor/dissipation factor tests

6. Test insulation resistance annually (≥500MΩ at 5kV DC)

7. Conduct partial discharge scans every 6 months

Compliance & Standards

Meets international HV requirements:

• IEC 62271-200 for AC metal-enclosed switchgear

• IEEE C57.12.00 liquid-immersed equipment

• EN 50522 earthing of power installations

• IEC 60076-6 power reactor standards

• ANSI/IEEE C57.12.90 test code

• IEC 61000-3-12 harmonic emissions

For HV switchgear integration guides or custom solutions, contact our specialized engineering team. Performance validated per IEC 60270 partial discharge standards.