Electrical Specifications

Precision Characteristics

Measurement Accuracy

• Dielectric Loss: ≤0.2% @20°C

• Voltage Ratio Error: ≤±1%

• Phase Angle Error: ≤0.02°

Thermal Performance

• Cooling: ONAN (Oil Natural Air Natural)

• Temp Coefficient: <30 ppm/°C

• Operating Range: -10°C to +50°C

Mechanical Design

• Insulation: Epoxy-oilpaper composite tube

• Wall thickness: 25mm minimum

• 3-layer graded shielding

• Base:

• 4× locking casters with ±3° leveling

• Quick-release mounting system

• Weight: ≈320 kg (operational)

• HV Terminal: Corona-free design (Ø500mm ring)

Installation Requirements

1. Clearance:

• 3m minimum to grounded surfaces

• 2m vertical clearance for lead connection

2. Measurement Setup:

• Use supplied 25kV-rated triaxial cable

• Shield termination within 0.5m of source

3. Pre-Test: Energize at 30kV for 15min before full voltage

Calibration & Maintenance