<100kVA Range
LQLVF-10kVA/2×25A Power Noise Filter with ONAN Cooling
Advanced Dual-Frequency EMI Protection
The LQLVF-10kVA/2×25A Power Noise Filter delivers precision electromagnetic interference suppression for industrial 0.4kV power systems. Featuring innovative ONAN (Oil Natural Air Natural) cooling and dual-frequency compatibility (50Hz/150Hz), this compact solution ensures stable operation during 60-minute continuous full-load conditions.
Technical Specifications
Parameter | Specification |
---|---|
Rated Power | 10kVA |
Cooling Method | ONAN (Oil Natural Air Natural) |
Rated Voltage | 0.4kV |
Rated Current | 25A × 2 Independent Circuits |
Rated Frequency | 50Hz |
Working Frequency | 50Hz / 150Hz |
Continuous Operation | 60 min at 100% rated voltage/current |
Key Performance Features
ONAN Cooling Technology
Natural convection oil cooling ensures thermal stability during extended operation without external power requirements - ideal for enclosed switchgear environments.
Dual-Frequency Operation
Unique 50Hz/150Hz compatibility provides noise suppression for both fundamental power frequencies and harmonic-rich environments.
High-Duty Cycle
Certified for 60-minute continuous operation at 100% rated load (25A × 2 circuits) without performance degradation.
Design Advantages
Compact Footprint: Space-efficient design for retrofit installations
Passive Cooling: Zero-maintenance ONAN system eliminates fans and moving parts
Dual-Circuit Isolation: Independent 25A channels prevent cross-circuit interference
Harmonic Tolerance: Stable performance at 3rd harmonic frequency (150Hz)
Industrial Applications
Variable Frequency Drive (VFD) power input stages
Industrial automation control cabinets
Test laboratories with mixed-frequency equipment
Manufacturing plants with harmonic-generating machinery
Renewable energy inverter interfaces
Installation & Operation
Thermal Management
The ONAN cooling system requires:
Minimum 100mm clearance above the unit
Ambient temperature ≤40°C
Vertical mounting orientation
Electrical Integration
Verify system voltage matches 0.4kV rating
Balance load across both 25A circuits
Install current-limiting fuses per IEC 60269-2
Why This Filter Stands Out
Frequency Flexibility: Rare 150Hz operational capability for harmonic-rich environments
Maintenance-Free: Sealed ONAN system with 10+ year service life
Overload Protection: Automatic thermal cut-off at 105°C (per IEEE C57.91)
Enhanced Safety: Double-insulated construction with grounded casing
Compliance & Standards
EMC Directive 2014/30/EU
IEC 61000-6-2: Industrial immunity standards
IEC 61000-6-4: Industrial emission standards
RoHS 3 (2015/863/EU) compliant