Multi-Voltage Operating Modes

Technical Specifications

Electrical Performance

• Frequency: 60Hz ±0.5%

• Q Factor: 20-100 adjustable

• Waveform THD: ≤1% (IEC 61000-4-7)

Environmental

• Noise Level: ≤75dB at 1m

• Cooling: ONAN (Oil Natural Air Natural)

• Insulation Oil: 25# mineral (IEC 60296)

Reliability Engineering

Overload Capability

• Current: 110% rated for 300s

• Voltage: 110% rated for 60s

• PD Level: ≤2pC at 100% U_H

Thermal Limits

• Winding ΔT: ≤65K (IEC 60076-2)

• Oil ΔT: ≤55K

• Duty Cycle: 1h ON/3h OFF (6×/day)

Structural Design

Core Components

• Adjustment System: Motorized air gap control

• Frame Material: 1Ni18Cr9Ti non-magnetic stainless

• Noise Control: Double lead screw mechanism

Enclosure

• Pressure Test: 20kPa (GB/T 7354)

• Seals: Aviation-grade acrylate

• Coating: Sky blue epoxy (ISO 12944 C4)

Certifications & Standards

• IEC 60060-1 (High-voltage testing)

• IEC 60270 (Partial discharge measurement)

• IEEE C57.12.90 (Temperature rise limits)