Premium EMI Suppression for 3kV Power Systems

Engineered for critical high-voltage applications, the LQLVF 50kVA/2×125A Power Noise Filter delivers exceptional electromagnetic interference suppression in 3kV systems. Featuring ultra-low <2pC partial discharge, dual 125A circuits, and transformer-matched operational lifespan, this industrial-grade solution provides >60dB attenuation while maintaining robust 5kV/1min insulation integrity.

Technical Specifications

Performance Highlights

Ultra-Low Partial Discharge

Maintains <2pC background PD level - exceeding IEC 60270 Class II requirements for high-voltage systems.

High-Voltage Capability

Designed for 3kV systems with 5kV/1min insulation withstand - ideal for industrial substations.

Transformer-Matched Operation

Continuous duty rating synchronized with connected transformers for 25+ year service life.

Robust Industrial Design

• Heavy-Duty Construction: 280kg ruggedized design for vibration resistance

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

• Switchgear Integration: Pre-engineered for sub-stage cabinet installation

• High Reactor Efficiency: Quality factor >70 ensures minimal energy loss

Industrial Applications

• Medium-voltage industrial substations

• Transformer-coupled power systems

• Process industry power distribution

• High-voltage test laboratories

• Critical infrastructure protection systems

Key Advantages

• Extended Operational Lifespan: Matches 25+ year transformer service life

• Premium PD Performance: <2pC partial discharge for sensitive HV equipment

• High Power Handling: 50kVA capacity with 125A per circuit

• Enhanced Safety: 5kV/1min insulation exceeds IEC 60664-1 requirements

Installation Guidelines

1. Structural Requirements:

• Cabinet floor rating ≥350kg/m²

• Minimum clearance: 100mm sides, 150mm top

2. Electrical Connections:

• Use 70mm² copper conductors

• Terminal torque: 50Nm

• Ground with 35mm² minimum cable (resistance <0.5Ω)

3. Commissioning Tests:

• Partial discharge test at 3.6kV AC (<2pC verification)

• Insulation resistance test at 5kV DC (min 1GΩ)

• Attenuation verification with spectrum analyzer

Why This Filter Stands Out

• High-Voltage Specialization: 3kV rating with 5kV insulation margin

• Extended Service Life: Transformer-matched operational profile

• Ultra-Clean Power: <2pC PD level protects sensitive equipment

• Industrial Reliability: 280kg rugged construction for harsh environments

Compliance & Standards

• IEC 60270: Partial discharge measurements

• IEC 61000-6-2: Industrial immunity standards

• IEC 61000-6-4: Industrial emissions standards

• IEEE C57.12.90: Transformer test standards

• RoHS 3 (2015/863/EU) compliant