Core Specifications

Industrial-Grade Features

✅ Extreme Overload Tolerance

• 190.4A surge protection (2× rated current) for 160ms (8 cycles) – exceeds IEC 60076-11 requirements by 60%.

• Zero mechanical deformation or winding damage during faults.

✅ Precision Power Delivery

• Contact-type regulation with linear 0–420V output

• Ultra-clean waveform (≤3% THD) for sensitive instrumentation

✅ Capacitive Load Safety

• Integrated damping resistor safely discharges capacitive test objects (cables, filters, transformers) during transients.

✅ Robust Operation

• 60-minute full-load operation (420V, 95.2A)

• Continuous 80% derated mode (336V, 76.2A) for 24/7 processes

• Position limiters prevent mechanical overtravel

Performance Validation

• Thermal Design: ONAN cooling maintains safe ΔT:

• Winding ≤65K | Oil ≤55K (per series standards)

• Compliance: Meets IEC 61000-3-2 harmonic distortion limits for industrial equipment.

Target Applications

► High-power test benches ► Cable/filter capacitor testing ► Transformer impulse testing ► Research labs requiring 2x surge tolerance ► Semiconductor burn-in testing

Technical Differentiation

*"The LQDZ-40kVA is engineered for destructive testing environments where competitors fail. Its 190A/160ms fault tolerance combined with damping resistor discharge eliminates 92% of capacitive arcing incidents in lab tests."*