Technical Specifications

Electrical Performance

Critical Protection Features

• Partial Discharge: <5 pC at 100% rated voltage (complete system)

• Over-Current Capacity: 150% rated current for 300 seconds (no damage)

• Over-Voltage Capacity: 110% rated voltage for 60 seconds

• Dielectric Strength: 3 kV/min (LV input to ground)

Thermal Management

• Winding Temp Rise: ≤65 K

• Oil Temp Rise: ≤55 K

• Cooling System: ONAN (Oil-Natural Air-Natural)

• Operational Duty:

• 60 min continuous at 100% rating

• Unlimited operation at 80% rating

Physical Properties

• Construction: Cylindrical core design

• Weight: 100 kg (approx.)

• Insulation Fluid: Mineral Oil (Type 25 per GB 2536)

• Protection Class: IP54 (IEC 60529)

Key Advantages

✅ High-Precision PD Testing: <5pC sensitivity for critical insulation diagnostics
✅ Exceptional Overload Capacity: 50% current overload for 5 minutes
✅ Optimized Thermal Design: ONAN cooling maintains safety margins during extended tests
✅ Adaptive Input: Customizable primary voltage (0.4kV base + variants)
✅ Dual-Mode Operation: Full-power burst testing + continuous 80% duty