Unmatched Power Density Specifications

Engineering Innovations

Ultra-Compact Design

Achieves 350kV in 54% smaller diameter than conventional designs

Precision Voltage Generation

• ≤3% waveform deviation enables:

• Accurate harmonic analysis per IEC 61000-4-7

• PD phase-resolved pattern recognition

• 100V measurement winding provides:

• Traceable calibration to national standards

• Direct connection to reference dividers

Advanced Insulation System

• ≤5pC PD @ 350kV (≤2pC @ 280kV):

• Laboratory-grade background noise

• Validates 500kV class cable accessories

• 5kV/min insulation withstand on:

• LV inputs

• Ground terminals

• Measurement circuits

Performance Benchmark

Redefining industry standards:

Mission-Critical Applications

1. Ultra-HV Cable Factories

• Type tests for 550kV HVDC cables (IEC 62895)

• PD mapping during accessory installation

2. Urban GIS Substations

• Noise-sensitive partial discharge monitoring

• Compact deployment in confined spaces

3. Research & Certification Labs

• Dielectric response measurements

• Composite insulator validation

Thermal & Electrical Performance

Dielectric Advantage:

• ≤0.5% loss tangent → ±0.02% measurement accuracy

• ≤10% no-load current → Reduced capacitive switching transients

Compliance & Safety

• Insulation Coordination:

• 10% impedance voltage limits fault energy

• Dual-pressure relief valves

• Standards Compliance:

• IEC 60270 (Partial Discharge)

• IEC 60076-14 (Power Transformers)

• IEEE C57.12.90 (Test Procedures)

Implementation Schematic

Field Deployment Protocol:

1. Foundation: 2.5m² reinforced base

2. Clearance: 4m radius at 350kV

3. Safety: Auto-discharge below 5% residual voltage

Technical Validation

"The ≤3% THD specification allows direct measurement of dielectric losses without correction factors – previously impossible in compact transformers. This enables field-accurate insulation diagnostics for offshore converter platforms."
— Dr. Emma Laurent, CIGRE SC B1 Insulation Specialist

Operational Advantages

• Logistics Savings:

• Fits standard ISO containers (no oversize permits)

• 2-ton crane lift vs 5-ton requirements

• Testing Efficiency:

• Integrated measurement winding reduces setup time by 70%

• Continuous operation eliminates cool-down cycles

• Precision Diagnostics:
  ≤2pC PD sensitivity at 280kV enables:

• Cable splice fault detection

• GIS particle discharge identification

Conclusion: The Future of High-Power Testing

The LQTT 350kV/100kVA delivers unprecedented value:

• Revolutionary compactness (Ø1300mm)

• Laboratory-grade precision (≤3% THD, ≤5pC PD)

• Deployment flexibility (1500kg weight)

Ideal for:
▸ HVDC cable qualification labs
▸ Urban transmission projects
▸ International certification bodies