Precision EMI Filtration with Minimal Partial Discharge

Engineered for critical power systems, the LQLVF-25kVA/2×62.5A Power Noise Filter delivers exceptional electromagnetic interference suppression while maintaining ultra-low <2pC background partial discharge. With dual 62.5A circuits and >70 quality factor reactors, this compact solution provides >60dB attenuation across disruptive frequency bands for 0.4kV switchgear installations.

Technical Specifications

Performance Highlights

Ultra-Low Partial Discharge

Maintains <2pC background PD level - meeting IEC 60270 Class II requirements for sensitive electrical environments.

High-Current Dual Circuits

Independent 62.5A channels provide redundant protection for critical 0.4kV systems.

Optimized Reactor Efficiency

Quality factor >70 ensures minimal energy loss (≤0.3%) while maximizing noise absorption.

Compact Design Features

• Space-Saving Profile: 30kg lightweight design enables easy retrofitting in existing cabinets

• Thermal Management: Natural convection cooling for maintenance-free operation

• Switchgear Integration: Pre-configured for sub-stage cabinet installation (no structural modifications)

• Vibration Resistance: Rugged construction for industrial environments

Industrial Applications

• Medium-voltage power distribution switchgear

• Data center power backup systems

• Industrial automation control panels

• Medical imaging equipment power supplies

• Laboratory test equipment power conditioning

Key Advantages

• Enhanced Safety: 3kV/1min insulation withstand voltage exceeds IEC 60664-1 requirements

• High Power Density: 25kVA capacity in compact 30kg package

• Broadband Performance: Effective suppression from 40kHz to 1MHz

• Global Compatibility: 50/60Hz dual-frequency operation

Installation Guidelines

1. Cabinet Requirements:

• Minimum clearance: 50mm sides, 100mm top

• Floor loading capacity ≥50kg

2. Electrical Connections:

• Use 25mm² copper conductors

• Terminal torque: 20Nm

3. Commissioning Tests:

• Verify PD level with partial discharge detector

• Confirm attenuation with spectrum analyzer

Why This Filter Stands Out

• Premium PD Performance: Industry-leading <2pC partial discharge for sensitive equipment

• High Current Capacity: 62.5A per circuit in compact form factor

• Maintenance-Free: Solid-state design with no moving parts

• Energy Efficient: >98.5% power transfer efficiency at full load

Compliance & Standards

• IEC 60270: Partial discharge measurements

• IEC 61000-6-2: Industrial immunity standards

• IEC 61000-6-4: Industrial emissions standards

• RoHS 3 (2015/863/EU) compliant