Multi-Voltage Operation Modes

Technical Parameters

Electrical

• Frequency: 50Hz ±0.5%

• THD: ≤1% (IEC 61000-4-7)

• Q Factor: >45

Performance

• Adjustment Range: 15:1 inductance ratio

• Noise: ≤75dB at 1m

• Insulation: 25# oil (IEC 60296)

Reliability Features

Dielectric Strength

• Overvoltage: 110% rated voltage for 5min

• Temperature Rise:

• Winding: ≤65K

• Oil: ≤45K

Operational Limits

• Duty Cycle: 1h ON/1h OFF (8×/day at 100% load)

• Cooling: ONAN (Oil Natural Air Natural)

Engineering Design

Adjustment System

• Inductance Control: Electric stepless adjustment

• Voltage Switching: Tap-change conversion

• Material: 1Ni18Cr9Ti non-magnetic stainless steel

Enclosure

• Pressure Test: 20kPa (GB/T 7354)

• Seals: Aviation acrylate (oil-resistant)

• Color: Sky blue epoxy coating

Standards Compliance

• IEC 60060-1 (High-voltage testing)

• IEC 60296 (Transformer oils)

• GB/T 16927.1 (Impulse withstand)