LQTT  70kV/5kVA High-Voltage Test Transformer | Precision Compact Testing

Designed for laboratory and field testing applications, the LQTT 70kV/5kVA High-Voltage Test Transformer delivers exceptional dielectric performance in a compact cylindrical package. Ideal for insulation testing, cable verification, and research applications requiring precise high-voltage generation.

Core Technical Specifications

Critical Performance Metrics

• Partial Discharge Level: <3 pC at 100% U_H (full test system)

• Waveform Distortion: ≤5% (IEC 60060-1 compliant)

• No-load Current: <10%

• Insulation Strength: 3kV/1min (LV terminals to ground)

Robust Operational Capabilities

• Overcurrent Withstand: 150% rated current (0.105A) for 300s – no damage to windings or insulation

• Overvoltage Capability: 110% rated voltage (77kV) for 60s – no insulation failure

• Thermal Performance:

• Continuous operation: 60 min at 100% rated voltage

• Extended operation: Unlimited at 80% rated voltage/current

• Winding temperature rise ≤65K

• Oil surface temperature rise ≤55K

Design & Safety Features

• Cooling System: ONAN (Oil Natural Air Natural)

• Construction: Cylindrical tank design

• Phase Configuration: Single phase

• Protection: Designed for safe operation in laboratory environments