Isolation Transformer
LQHIT 80KVA Isolation Transformer: 380V Input to Dual 380V/220V Outputs
Industrial-Grade Power Conditioning Solution
Engineered for demanding industrial environments, this transformer features dual electrostatic shields that reduce electromagnetic interference (EMI) by up to 60dB. With 110kV insulation-grade transformer oil and specialized shielding between HV/LV windings, it effectively minimizes partial discharge interference in critical systems, ensuring stable power for sensitive equipment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Capacity | 80 kVA |
| Input Voltage | 380V AC |
| Output Voltages | 380V AC + 220V AC |
| Output Currents | 197A (380V) / 20A (220V) |
| Insulation Medium | 25# Transformer Oil (IEC 60296) |
| Insulation Level | 110 kV |
| Dimensions (L×W×H) | 750mm × 650mm × 780mm |
| Weight | 320kg |
| Cooling System | ONAN (Oil Natural Air Natural) |
| Footprint Area | 0.49m² |
Advanced Engineering Features
Dual Electrostatic Shielding
Copper-foil barriers between HV-LV and LV-coil assemblies provide 360° EMI protection, attenuating common-mode noise >55dB in the 10kHz-1MHz spectrum critical for industrial measurement systems.
110kV Insulation System
25# transformer oil with reinforced insulation barriers withstands 110kV dielectric strength, exceeding standard industrial requirements by 45% for enhanced safety in high-voltage environments.
Optimized ONAN Cooling
Natural oil circulation enables 24/7 continuous operation at full load with maximum 52°C temperature rise - 25% lower than industry standards for comparable transformers.
Performance Comparison
| Metric | Standard Transformers | LQHIT 80KVA |
|---|---|---|
| Partial Discharge Reduction | 40-50% | >88% |
| Dielectric Strength | 35-50kV | 110kV |
| Voltage Stability | ±5% | ±2.2% |
| Continuous Operation | 85% load capacity | 100% load capacity |
| Noise Suppression | 30-40dB | >60dB |
Industrial Applications
Manufacturing Plants: Clean power for CNC machines and robotic assembly lines
Power Generation Facilities: Isolate sensitive monitoring equipment from grid transients
Industrial Test Labs: Precision power for partial discharge measurement systems
Water Treatment Plants: Stable power for high-torque pump systems
Mining Operations: Reliable operation in high-vibration environments
Installation & Safety Features
Space-Efficient Design: 0.49m² footprint fits standard electrical rooms
Robust Construction: 320kg heavy-duty build with 4mm steel tank walls
Enhanced Safety: Pressure-relief diaphragm and thermal cutoffs (IEC 60076 compliant)
Environmental Protection: IP55-rated enclosure for dust/moisture resistance
Vibration Resistance: Shock-absorbing mounts rated for 5G operational vibration
Terminal Configuration: Color-coded bushings with anti-corrosion treatment
Technical Compliance
Meets international standards including:
IEC 60076 for power transformers
IEC 61558-2-4 for safety of isolating transformers
IEEE C57.12.00 for general requirements
ISO 9001 for manufacturing quality
RoHS compliance for environmental safety
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