≤100kV Range
Technical Specifications
Electrical Performance
| Parameter | Specification | Standard |
|---|---|---|
| Rated Capacity | 70 kVA | IEC 60076 |
| Output Voltage | 70 kV AC | |
| Input Voltage | 0-400 V (customizable) | |
| Frequency | 50 Hz | |
| No-Load Current | ≤10% | IEEE C57.12.90 |
| Waveform Distortion | ≤3% | IEC 60076-1 |
| Impedance Voltage | ≤5% | |
| Dielectric Loss (tanδ) | <0.5% |
Partial Discharge & Insulation
PD Level: <5 pC at 100% rated voltage (complete system)
Withstand Voltage: 110% rated voltage for 1 minute
Overload Capacity: 120% rated current for 3 minutes (no winding damage)
Thermal Management
Winding Temperature Rise: ≤65 K
Oil Temperature Rise: ≤55 K
Cooling Method: ONAN (Oil-Natural Air-Natural)
Duty Cycle: Continuous operation at 100% rating for 60 minutes
Environmental & Safety
Noise Level: <60 dB(A) at 1m distance
Insulating Fluid: Mineral Oil Type 25 (GB 2536 Standard)
Protection Class: IP54 enclosure (NEMA 3 equivalent)
Mechanical Design
Construction: Cylindrical core type
Dimensions: Ø700 × 1000 mm (transformer body)
Baseplate: Ø800 × 1000 mm
Total Weight: 725 kg
Key Features Highlight
✅ Ultra-Low Partial Discharge: <5pC ensures precision in PD-sensitive applications
✅ Extended Overload Capacity: 20% overload for 3 minutes without degradation
✅ Thermally Optimized: ONAN cooling with ≤65K rise for stable operation
✅ Zero-Customization Input: Compatible with global grid voltages (0-400V base)
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