LQLVF 125kVA/2*208A Power Noise Filter: Premium EMI Suppression for Switchgear Systems

High-Performance Noise Attenuation

Engineered for critical EMI suppression in 0.6kV power distribution systems:

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

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

• Ultra-low background partial discharge: <2pC

• Filter reactor quality factor: >70

• Verified per IEC 60270 partial discharge standards

Technical Specifications

Ultra-Low Partial Discharge Design

Advanced engineering for sensitive electrical environments:

• Background PD level <2pC at rated voltage

• Triple-shielded reactor construction

• Corona-suppression encapsulation technology

• PD-monitoring compatible terminal points

• Validated per IEEE 1434 measurement standards

Robust Switchgear Integration

Optimized for substation switchgear cabinets:

• Heavy-duty 280kg construction for vibration resistance

• Standardized mounting points for retrofitting

• Front-access terminals for maintenance

• Thermal management designed for enclosed spaces

• Cable entry points compatible with standard gland plates

Enhanced Insulation System

Superior electrical protection for 0.6kV systems:

• 5kV/1min dielectric strength (exceeds IEC 60664 requirements)

• Class F insulation system (155°C rating)

• Creepage distance: ≥20mm/kV

• Corona-free design up to 1.2× rated voltage

• Partial discharge inception voltage >3.5kV

Industrial Applications

Ideal for 0.6kV systems in:

• Industrial substation switchgear

• Power distribution units (PDUs)

• Manufacturing plant MCC panels

• Renewable energy converter stations

• Critical facility power systems

• High-voltage test laboratories

Dual-Circuit Advantages

Operational flexibility and reliability:

• Independent circuits for load balancing

• Parallel operation capability

• Fault isolation protection per circuit

• Individual monitoring points for each filter line

• Asymmetric loading capability (±15%)

Installation & Maintenance Protocol

Ensure optimal performance in switchgear applications:

1. Verify switchgear compartment dimensions ≥600×500×700mm

2. Use copper busbars with ≥40kA SCCR rating

3. Maintain minimum 75mm clearance for heat dissipation

4. Perform semi-annual partial discharge scans

5. Test insulation resistance annually (≥500MΩ at 2.5kV DC)

6. Check torque values on power terminals (65 N·m)

Safety & Protection Features

Engineered for reliable operation:

• Arc-resistant containment barriers

• Thermal overload protection with auto-reset

• Surge protection (15kV/20μs withstand)

• Ground fault monitoring

• Vibration-dampened mounting system

• IP54-rated enclosure for contaminant protection

Compliance & Standards

Meets international requirements including:

• IEC 62271-200 for AC metal-enclosed switchgear

• IEEE 386 separable insulated connectors

• IEC 61000-3-12 harmonic emissions

• EN 50522 earthing of power installations

• ANSI/IEEE C57.12.90 test code

For switchgear-specific installation guides or technical support, contact our engineering team. Performance validated per IEC 61000-4-7 harmonic measurement standards.