<100kVA Range
LQLVF 87.5kVA/2*210.8A Power Noise Filter: Dual-Circuit EMI Suppression
Precision EMI Filtering for Medium Voltage Systems
Engineered for critical power infrastructure, the LQLVF 87.5kVA/2*210.8A Power Noise Filter delivers industrial-grade electromagnetic interference suppression in 0.415kV systems. With dual independent circuits and exceptional >70 quality factor reactors, this filter achieves <1pC background partial discharge while providing >60dB attenuation across disruptive frequency bands.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Power | 87.5kVA |
| Rated Voltage | 0.415kV/0.415kV |
| Rated Current | 210.8A × 2 Circuits |
| Frequency Range | 50-60Hz |
| Quality Factor (Reactor) | >70 |
| Background PD Level | <1pC |
| Attenuation | 40-100kHz: >40dB 100kHz-1MHz: >60dB |
| Insulation Level | 3kV/1min |
| Operating Time | 60 min at 100% load |
Performance Highlights
Ultra-Low Partial Discharge
Maintains <1pC background PD level - exceeding IEC 60270 Class I requirements for sensitive measurement environments.
Dual-Circuit Redundancy
Independent 210.8A circuits ensure continuous operation with N+1 fault tolerance for critical systems.
Broadband Attenuation
Effective noise suppression across multiple bands: >40dB (40-100kHz) and >60dB (100kHz-1MHz).
Design & Integration
Compact Form Factor: 30kg weight enables seamless retrofitting in existing switchgear cabinets
Thermal Management: Certified for 60-minute continuous operation at 100% rated load
Installation: Pre-configured for sub-stage switchgear cabinet integration (no structural modifications required)
Compliance: Meets IEC 61000-3-8 EMC requirements for industrial environments
Industrial Applications
Medium-voltage switchgear installations
Critical power control cabinets
Industrial automation systems
Renewable energy conversion stations
Laboratory-grade measurement equipment power lines
Operational Advantages
High Reactor Efficiency: Quality factor >70 minimizes power loss while maximizing noise absorption
Enhanced Safety: 3kV/1min insulation withstand voltage
Frequency Flexibility: Compatible with both 50Hz and 60Hz power systems
Reduced Maintenance: Solid-state design with no moving parts
Installation Guidelines
Verify cabinet clearance: Minimum 50mm side ventilation space
Use M10 mounting hardware (torque to 45Nm)
Perform pre-commissioning PD test per IEEE 1799
Confirm attenuation characteristics with spectrum analyzer
Related PRODUCTS
-
LQLVF 80kVA/2×210.5A Single-Phase Power Noise Filter with ONAN Cooling - <2pC PD EMI Solution
-
LQLVF 80kVA/2×200A Single-Phase Power Noise Filter with ONAN Cooling - 6kV Insulation EMI Solution
-
LQLVF 60kVA/2×150A Single-Phase Power Noise Filter with ONAN Cooling - Industrial EMI Suppression
-
LQLVF 50kVA/2×125A High-Voltage Power Noise Filter - 3kV EMI Suppression <2pC PD
-
LQLVF-41.5kVA/2×100A Single-Phase Power Noise Filter with ONAN Cooling - 60dB EMI Suppression
-
LQLVF-30kVA/2×75A Single-Phase Power Noise Filter - 60dB EMI Suppression
-
LQLVF-25kVA/2×62.5A Power Noise Filter - Ultra-Low PD EMI Suppression for Switchgear
-
LQLVF-25kVA/2×50A Power Noise Filter - Heavy-Duty EMI Suppression for Switchgear
-
LQLVF-10kVA/2×25A Power Noise Filter with ONAN Cooling - Dual-Frequency EMI Solution