High-Performance Testing Transformer

The LQTT series 300kV/50kVA test transformer delivers reliable high voltage testing capabilities for laboratories, manufacturing facilities, and certification centers. Designed with a cylinder-type construction andONANcooling system, this single-phase transformer provides stable performance in demanding test environments while maintaining partial discharge levels below 5pC.

Precision Performance

Waveform deviation ≤5% ensures accurate test results

Robust Construction

Cylinder-type design optimized for thermal management

Extended Operation

60-minute operation at 100% rating with 65K max winding temp rise

Technical Specifications

Electrical Parameters

• Rated Capacity: 50kVA

• Frequency: 50Hz

• Input Voltage: 0.4kV

• Output Voltage: 300kV

• Input Current: 125A

• Output Current: 0.1A

Performance Characteristics

• Cooling Method: ONAN (Oil Natural Air Natural)

• No-load Current: ≤10% of rated current

• Waveform Deviation: ≤5%

• Impedance Voltage: ≤10%

• Partial Discharge Level: <5pC at 100% UH (complete test system)

Operational Parameters

• Full Load Operation: 60 minutes at 100% rated current & voltage

• Continuous Operation: Unlimited at 80% rated current & voltage

• Temperature Rise:

• Winding: ≤65K

• Oil Surface: ≤55K

Industrial Applications

Power Equipment Testing

IEC-compliant testing of transformers, switchgear, and bushings up to 300kV

Cable & Insulation Validation

High voltage withstand testing for power cables and insulation materials

Research & Development

Precision high voltage experiments with minimal waveform distortion

Standards Compliance

The LQTT 300kV/50kVA test transformer meets or exceeds requirements of:

• IEC 60076 Power Transformers

• IEC 60270 Partial Discharge Measurements

• IEC 60060 High Voltage Test Techniques

• IEEE C57.12.90 Standard Test Code

Safety Note: All tests should be conducted by qualified personnel using appropriate safety barriers and personal protective equipment.

Technical Documentation

Download complete technical dossier including:

• Detailed wiring diagrams

• Calibration certificates

• Installation guidelines

• Safety protocols