LQTT Series 220kV/10kVA High Voltage Test Transformer

Engineered for ultra-high-voltage precision testing, this cylinder-type transformer delivers exceptional stability at 220kV with robust overload protection. Certified for critical applications requiring uncompromised accuracy in partial discharge (PD) measurement and dielectric validation.

Core Technical Specifications

Performance Engineering Highlights

1. Robust Overload Protection

2. Thermal Resilience

• Full Load Operation: 30 minutes at 220kV/0.045A

• Continuous Duty: Unlimited operation at 176kV/0.036A (80% rating)

• Strict Temperature Control:

• Winding rise: ≤65K

• Oil surface rise: ≤55K

3. Precision Voltage Generation

• Clean Waveform (≤5% THD): Critical for harmonic-sensitive tests

• Low Impedance (≤10%): Minimizes voltage drop under load

• ONAN Cooling: Silent operation (<60dB) for lab environments

Certified Safety Systems

• Insulation Integrity:
  Withstands 3kV/min (LV input to ground) per IEC 61144

• Multi-Layer Protection:

• Automatic thermal monitoring

• Overload cut-off circuitry

• Reinforced inter-winding isolation

Technical Validation

Critical Applications

• Ultra-HV Calibration: Reference source for 200kV+ measurement systems

• Bushing/Cable Testing: Acceptance tests per IEC 60885/IEC 60137

• Partial Discharge Research: Sensitive detection system validation

• High-Altitude Simulation: Equipment testing for aviation/power transmission

Series Comparison

Why This Transformer?

• Highest Standard Voltage: 220kV output for cutting-edge research

• Precision Overload Tolerance: 150% current handling for fault simulation

• Lab-Optimized Design: Compact footprint and silent operation

• Global Compliance: Meets IEC/IEEE standards for export markets

Call to Action

For ultra-high-voltage research:
⚡ [Request 220kV Application Guide]
🔍 [Download Precision Test Reports]
📞 [Consult HV Engineers for Custom Config]