Advanced Noise Filtering for Critical Power Systems

The LQLVF 75kVA/2*125A Power Noise Filter provides industrial-grade electromagnetic interference (EMI) suppression for high-voltage switchgear installations. Engineered to deliver >60dB attenuation across critical frequency bands, this dual-circuit solution ensures operational stability in 0.6kV systems while maintaining<5pc background="" partial="" discharge="" levels.="">

Key Technical Specifications

Critical Performance Features

Ultra-Low Partial Discharge

Maintains <5pC background PD level - essential for preventing insulation degradation in high-voltage environments per IEC 60270 standards.

High-Frequency Attenuation

Delivers >60dB noise suppression in the 100kHz-1MHz range, eliminating harmonics that disrupt sensitive measurement equipment.

Reactor Performance

Filtering reactor with quality factor >70 ensures minimal energy loss while maximizing EMI absorption efficiency.

Installation & Integration

• Mounting: Designed for direct integration into sub-stage switchgear cabinets

• Weight: 260kg (compact form factor for retrofit applications)

• Compliance: Meets IEC 60204-32 safety requirements for electromagnetic compatibility

Industrial Applications

• High-voltage substation switchgear

• Precision measurement systems requiring EMI-free power

• Critical infrastructure protection systems

• Industrial plants with sensitive control electronics

Why Choose This Filter?

• Dual-Circuit Design: Independent 125A circuits for redundant protection

• Dielectric Integrity: 18kV/1min insulation withstand voltage

• Precision Manufacturing: Military-grade components for 100,000+ hour MTBF

Maintenance Guidelines

For optimal performance:

1. Perform annual insulation resistance tests (per IEEE 43)

2. Verify attenuation characteristics every 24 months

3. Monitor reactor temperature during peak operations