Technical Specifications

Modular Structural Design

Removable Oil-Immersed Components

HV Arm Assembly

• 400kV-rated capacitor section

• Mineral oil-impregnated dielectric

• Vacuum-processed insulation

LV Measurement Arm

• Precision voltage sensing circuit

• Shielded output terminals

• Temperature-compensated design

Corona Ring System

• Aluminum alloy construction

• Optimized diameter for 400kV operation

• Quick-disconnect assembly

Removable Base

• Stabilizing platform with leveling feet

• Integrated grounding terminals

• Transport locking mechanism

Performance Advantages

Precision Measurement

• 2000:1 ratio with ≤±1% accuracy

• Phase displacement <0.1° at 60Hz

• Bandwidth: DC - 1kHz

• Low-temperature drift: 0.005%/°C

Thermal Management

• ONAN cooling system

• ΔT <5°C during 60-min operation

• Operating range: -30°C to +55°C

• Sealed oil preservation system

Operational Safety

• Automatic discharge circuit (τ <60s)

• Dual-pressure relief mechanisms

• Oil level/temperature monitoring

• NFPA 70E compliant grounding

Certified Performance Validation

Testing Protocol Compliance

• Dielectric loss <0.2% verified at 60Hz (IEC 60247)

• Ratio accuracy ≤±1% from 10% to 100% rated voltage

• 60-minute thermal stability test at 400kV

• Impulse withstand: 480kV (1.2/50μs wave)

• Partial discharge <5pC at 400kV

IEC 60270                        IEC 60060-1                        IEC 60060-2                        ANSI C37.90

Industrial Applications

Power Transmission

• 400kV+ substation equipment testing

• Circuit breaker diagnostics

• Busbar insulation verification

High-Power Laboratories

• Transformer impulse testing

• GIS partial discharge mapping

• Cable system commissioning

Renewable Energy

• Offshore wind farm converters

• Solar inverter testing

• BESS (Battery Storage) validation