Electrical Specifications

Precision Characteristics

Measurement Accuracy

• Dielectric Loss: ≤0.2% @20°C

• Voltage Ratio Error: ≤±1%

• Phase Stability: <0.015°/h

Thermal Performance

• Duty Cycle: 1 hour ON / 1 hour OFF

• Temp Coefficient: <20 ppm/°C

• Cooling Method: ONAN

Mechanical Design

• Insulation System:

• Epoxy-oilpaper composite construction

• 5-layer capacitive grading

• Wall thickness: 35mm nominal

• Dimensions: Ø300/400×1650mm

• Weight: 300 kg (including base)

• Mobility Features:

• 4× industrial casters (300kg capacity each)

• Quick-disconnect base mechanism

• Transport locking pins

Installation Requirements

1. Site Preparation:

• 3.5m minimum clearance to ground

• Level surface within ±1°

2. Measurement Setup:

• Use supplied 35kV-rated triaxial cable

• Ground shield at source end only

3. Thermal Conditioning:

• Pre-energize at 40kV for 15 minutes

• Monitor oil temperature (max 70°C)

Operational Limits