Key Electrical Parameters

Advanced Technical Features

Dielectric Performance

• Partial Discharge: <2pC at 80kV (100% U_H)

• Insulation Withstand: 88kV for 1 minute (110% U_H)

• Leakage Current: <0.5mA under rated voltage

Mechanical Design

• Core Adjustment: Motorized air gap control (7.28H~169.9H range)

• Structural Material: 1Ni18Cr9Ti non-magnetic stainless steel

• Noise Reduction: Double lead screw mechanism (<75dB)

Thermal & Operational Limits

Temperature Ratings

• Winding Rise: ≤65K at 35A continuous

• Oil Temperature: ≤55K (25# mineral oil)

• Ambient Range: -25°C to +45°C operational

Duty Cycle

• Standard Operation: 1hr ON / 1hr OFF (≤8 cycles/day)

• Overload Capacity: 42A (120% I_H) for 10 minutes

System Integration

Test Object Compatibility

• Capacitance Range: 0.06μF~1.39μF

• Q Factor: >40 at rated frequency

• Linearity Error: <±1% (10%~100% reactance range)

Protection Systems

• Over-voltage (110% U_H auto-trip)

• Over-current (120% I_H with time delay)

• Air gap position monitoring (min/max limit switches)

Construction Details

Internal Components

• Winding Insulation: Epoxy-impregnated glass cloth

• Magnetic Circuit: Grain-oriented silicon steel with mitred joints

• Cooling System: ONAN (Oil Natural Air Natural)

Enclosure Specifications

• Pressure Rating: 20kPa leak-proof design

• Seals: Aviation-grade acrylate (MIL-R-25988 compliant)

• Corrosion Protection: ISO 12944 C4-M coating system