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Isolation Transformer

LQHIT 50KVA Isolation Transformer: 380V Oil-Immersed with Dual Electrostatic Shielding

50KVA oil-immersed isolation transformer with dual electrostatic shielding. 380V input/output, 131.58A current, 8% impedance for partial discharge reduction in industrial systems.


  • US$ 2,459.00
  • Lead time: 30 days

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Product Details

Product Tags

LQHIT HIT 50 50KVA/380V Oil-Immersed Isolation Transformer

Industrial-Grade Noise Suppression Solution

Engineered for mission-critical applications, this transformer features dual electrostatic shields that reduce electromagnetic interference (EMI) by up to 50dB. The specialized copper-mesh barriers between HV/LV windings and coil assemblies effectively minimize partial discharge interference in sensitive measurement systems, ensuring power integrity in high-noise industrial environments.

Technical Specifications

ParameterSpecification
ModelHIT 50
Rated Capacity50 kVA
Input Voltage380V AC (Single Phase)
Output Voltage380V AC (Single Phase)
Rated Current131.58A
Impedance Voltage8%
Operating DutyContinuous (Same as Reactor)
Dimensions (W×D×H)600mm × 400mm × 800mm
Weight150kg
CoolingOil-Immersed (ONAN)

Advanced Engineering Features

Dual Electrostatic Shielding

Independent copper-foil barriers between HV-LV and LV-coil assemblies provide 360° EMI protection, attenuating common-mode noise >45dB in the 10kHz-2MHz spectrum critical for partial discharge measurements.

Optimized 8% Impedance Design

Precisely calibrated impedance provides ideal balance: limits fault currents to safe levels while maintaining ±3% voltage regulation during 25-115% load fluctuations.

Oil-Immersion Thermal Management

Mineral oil cooling enables 24/7 continuous operation at full load with maximum 55°C temperature rise - 30% lower than industry standards for dry-type transformers.

Performance Comparison

MetricStandard TransformersLQHIT HIT 50
Noise Suppression25-35dB>50dB
Partial Discharge Reduction30-40%>75%
Voltage Stability±5%±3%
Continuous Operation80% load capacity100% load capacity

Industrial Applications

  • High-Voltage Test Labs: Isolate PD measurement circuits from grid harmonics

  • Industrial Automation: Clean power for robotic assembly lines and CNC systems

  • Power Substations: Buffer sensitive monitoring equipment from transient surges

  • Renewable Energy Plants: Stabilize output in solar/wind converter stations

Installation & Safety

  • Compact Footprint: 0.48m² base area fits standard electrical cabinets

  • Enhanced Safety: Over-temperature cutoffs (85°C trigger) and pressure-relief diaphragm

  • Environmental Protection: IP55-rated enclosure for harsh industrial environments

  • Vibration Resistance: Shock-absorbing mounts rated for 5G operational vibration

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