<100kVA Range
LQLVF 30KVA/2*136A Power Noise Filter: High-Current Dual-Circuit EMI Suppression
Core Technical Specifications
Parameter | Specification |
---|---|
Model | LQLVF 30KVA/2*136A |
Rated Voltage | 0.22kV Input/Output |
Rated Current | 136A per Circuit (272A total) |
Frequency | 50Hz |
Circuits | 2 Independent Channels |
Full-Load Operation | 60 minutes at 100% rating |
Insulation Level | 3kV for 1 minute |
Weight | 30kg (Regulator-Integrated) |
Performance Specifications
Attenuation:
40kHz-100kHz: >40dB
100kHz-1MHz: >60dB
Filter Reactor Q-Factor: >70 (Low signal distortion)
Partial Discharge: <5pC (Industrial-grade noise control)
Insertion Loss: <0.35dB at 50Hz
Dual-Circuit Design Advantages
High-Current Isolation: 136A per circuit for heavy equipment
Cross-Noise Rejection: -75dB inter-circuit interference suppression
Load Balancing: Distribute 272A total capacity across equipment
Maintenance Redundancy: Service one circuit while maintaining operation
Regulator-Integrated Engineering
Space-Optimized: Direct mounting in standard 0.22kV regulator cabinets
Robust Construction: 30kg industrial-grade chassis
Thermal Management: Forced-air cooling channels
High-Density Design: 1kVA/kg power density
Industrial Applications
Industrial furnace control systems
High-current PLC and DCS cabinets
Substation control panel EMI protection
Heavy machinery motor controllers
Foundry equipment power conditioning
"Dual-circuit filters with 100A+ per channel capacity are essential for modern industrial facilities where high-power equipment generates complex EMI profiles requiring isolated suppression."
– IEEE Transactions on Industry Applications
Installation Guidelines
Mount vertically using M10 fasteners (45N·m torque)
Maintain 75mm clearance from heat sources
Use 50mm² minimum copper conductors
Implement isolated ground paths for each circuit
Verify phase sequencing before energization
Performance Validation Tests
Test | Standard | Result |
---|---|---|
Full-Load Temperature | IEC 60076-11 | 70°C at 60-min operation |
Partial Discharge | IEC 60270 | <5pC at 1.5Ur |
Impulse Withstand | IEC 60060-1 | 3kV/1min pass |
Vibration Resistance | IEC 60068-2-6 | 5-150Hz @ 2g pass |
Compliance & Standards
IEC 61000-6-4 (Industrial emissions)
IEC 61000-6-2 (Industrial immunity)
EN 50178 (Electronic equipment for power systems)
ANSI C62.41 (Surge protection)
Maintenance Protocol
Interval | Action | Acceptance Criteria |
---|---|---|
Monthly | Thermal imaging | ΔT ≤ 40°C from ambient |
Quarterly | Connection torque check | 40N·m ±5% |
Biannual | Insulation resistance | >100MΩ at 2.5kV DC |
Annual | Attenuation verification | ±3dB of initial spec |