Key Specifications

1. Electrical Ratings

• Rated Capacity: 12 kVA

• Input Voltage: 380 V AC (±15% typical)

• Output Voltage: 0-420 V AC (Continuously adjustable)

• Input Current: 31.6 A (Rated)

• Output Current: 0-28.5 A

• Frequency: 50 Hz

• Waveform Distortion: ≤3% THD

2. Regulation & Protection

• Regulation Type: Servo-Driven Contact Mechanism

• Short-Circuit Withstand: 2× rated current (57A) for 8 cycles (160ms @50Hz) without damage

• Position Limits: Upper/lower limit switches with cut-off protection

• Duty Cycle:
  ✓ 60 min at 100% voltage & current
  ✓ Continuous operation at 80% rated load

3. Construction & Safety

• Damping resistor for capacitive discharge protection

• Mechanical winding protection against deformation

• Transformer short-circuit reinforcement

• Cooling: ONAN (Oil Natural Air Natural)

• Critical Safeguards:

• Weight: 60 kg (robust industrial design)

Core Technology Advantages

• Industrial-Grade Resilience: Engineered to withstand 200% overload transients during test object discharges

• Zero-Damage Protection: Reinforced windings and damping systems prevent mechanical stress during faults

• Precision Control: Linear 0-420V adjustment via servo-driven contact mechanism

• Operational Flexibility: Dual operating modes (full power intermittent / 80% continuous)

• Safety Compliance: Position limiters prevent overtravel damage