High Voltage Test Solutions
Persistently developing technology, improving quality, management, and service standards

100kV ~ 400kV Range

LQTT 200kV/20kVA High Voltage Test Transformer | <2pC PD | Overload Protected | LQTT Series

Robust 200kV/20kVA test transformer with <2pC PD, 150% overload capability & ONAN cooling. Ideal for dielectric testing, cable validation, and PD-sensitive applications.


  • US$ 9,836.00
  • Lead time: 50 days

>>>WhatsApp Communication<<<

Product Details

Product Tags

LQTT Series 200kV/20kVA High Voltage Test Transformer

Engineered for demanding high-voltage testing environments, this cylinder-type transformer combines precision partial discharge performance with exceptional overload resilience. Certified for critical applications where voltage stability and system protection are paramount.

Core Technical Specifications

ParameterSpecification
Rated Capacity20 kVA
Input Voltage0.4 kV AC
Output Voltage200 kV AC
Output Current0.1 A
Frequency50 Hz
Cooling MethodONAN (Oil-Natural Air-Natural)
Partial Discharge (PD)<2 pC at 100% UH(Full test system)
Waveform Distortion≤ 5%
Impedance Voltage≤ 10%
No-Load Current≤ 10%
Insulation Strength3 kV/min (LV input to ground)

Robust Performance Capabilities

deepseek_mermaid_20250607_940354.png

Key Differentiators

1. Advanced Protection Engineering

  • 150% Current Overload: Sustain 0.15A (30kVA) for 5 minutes without insulation damage

  • 110% Voltage Surge: Withstand 220kV for 60 seconds for transient protection

  • Ground Insulation: 3kV/min withstand on LV inputs (exceeds IEC 60076 standards)

2. Precision PD Performance

  • <2pC Partial Discharge at full 200kV output - ideal for:

    • Bushing/cable acceptance testing (IEC 60270)

    • Calibration of PD measurement systems

    • Research-grade dielectric studies

3. Optimized Thermal Design

  • ONAN Cooling System: Zero-maintenance operation

  • Strict Temperature Control:

    • Winding rise ≤65K at full load

    • Oil surface rise ≤55K at continuous 80% load


Technical Specifications Table

FeatureSpecificationTest Standard
Rated Voltage200 kV ACIEC 60060-1
PD Level<2 pC @ 200kVIEC 60270
Over-Current0.15A (150%) for 300sIEEE C57.12.91
Over-Voltage220kV (110%) for 60sIEC 60076-11
Insulation Test3kV/min (LV-Ground)IEC 61144
DimensionsØ1300 × H1300 mm-
Weight<1500 kg-

Critical Applications

  • Dielectric Withstand Testing: Transformers, cables, GIS switchgear

  • Partial Discharge Calibration: Reference source for PD detectors

  • High-Voltage Research: Material breakdown studies, insulator validation

  • Quality Assurance: Factory acceptance testing (FAT) for power equipment


Compliance & Standards

Certified for use in systems requiring:

  • IEC 60076 (Power transformers)

  • IEEE 4 (HV testing techniques)

  • IEC 60270 (Partial discharge measurements)

  • IEC 60060-1 (HV test procedures)


Comparison: LQTT Series Transformers

ModelPD LevelOverload CapabilityCore Application
200kV/20kVA<2 pC150% current/300sPD-sensitive validation
200kV/10kVA<1 pCN/APrecision calibration
150kV/350kVAN/AN/AHigh-current testing

Call to Action

For high-stakes testing scenarios:
⚡ [Download 200kV/20kVA Test Protocols]
🔍 [Request PD Performance Validation Report]
📞 [Consult HV Engineers for Application Fit]


>>>WhatsApp Communication<<<

>>>Click To Get Quote<<<

Leave Your Message

Leave Your Message