Advanced Noise Filtering Technology

The LQLVF 300kVA/2*789.5A power noise filter utilizes an optimized L-C filtering circuit with dedicated filter capacitors to suppress electromagnetic interference (EMI) in critical industrial environments. Engineered for 0.38kV systems operating at 50Hz, this dual-circuit solution delivers exceptional noise attenuation while maintaining background partial discharge levels below 5pC.

Technical Specifications

Key Performance Features

• Dual-Circuit L-C Design: Independent 789.5A circuits with optimized inductor-capacitor network for balanced EMI suppression

• Broad-Spectrum Attenuation: Effective noise reduction across 40KHz-2MHz frequency range

• Ultra-Low Partial Discharge: <5pC background PD ensures signal integrity in sensitive measurement systems

• Symmetric Voltage Handling: Stable 0.38kV input/output performance for balanced power systems

Industrial Applications

Power Substations

Suppress switching noise in 0.38kV distribution panels

Industrial Automation

Protect sensitive PLCs and control systems from EMI

Renewable Energy

Filter inverter-generated harmonics in solar/wind installations

Medical Equipment

Ensure clean power for diagnostic imaging systems

Design Advantages

1. Precision-Tuned Components: Optimized L-C values for 50Hz systems with harmonic suppression

2. Thermal Management: Robust capacitor design maintains performance at full 789.5A load

3. EMI Containment: >60dB attenuation prevents high-frequency noise propagation

4. Dual-Circuit Redundancy: Independent filtering paths ensure continuous operation

Installation Guidelines

• Maintain minimum 100mm clearance from heat-generating components

• Ensure balanced load distribution between circuits

• Verify ground connection resistance <0.1Ω

• Perform PD tests post-installation per IEC 60270 standards

Compliance: Meets IEC 61000-6-2/6-4 for industrial electromagnetic compatibility.