Technical Specifications

Dual-Function Capabilities

Precision Voltage Divider

• 2000:1 nominal dividing ratio

• ≤±1% measurement accuracy

• Single and two-stage serial measurement

Coupling Capacitor

• 3000pF capacity for power line coupling

• 60Hz optimized performance

• Signal injection for PD monitoring

Advanced Performance Features

Ultra-Low Partial Discharge

• ≤2pC at 400kV (100% rated voltage)

• ≤3pC at 320kV (80% rated voltage)

• Detects microscopic insulation defects

Thermal Stability

• ONAN cooling maintains dielectric properties

• <0.2% dielectric loss at 20°C

• Natural convection eliminates moving parts

Robust Insulation System

• 440kV/1min withstand capability

• Zero abnormal discharge during testing

• Advanced dielectric fluid formulation

Engineering Design Excellence

Optimized Corona Control

• Aerospace-grade aluminum corona rings

• Segmented design for transportation

• Corona-free HV connections

Removable Stability Pedestal

• Engineered for seismic stability

• Quick-assembly field deployment

• Integrated measurement ports

Measurement Flexibility

• Special lead-wire to VF power sources

• Single/two-stage serial measurement

• Scalable corona-free connections

Performance Validation Testing

Testing conducted per IEC 60270 and IEEE 4 standards

Industry Applications

Power Line Carrier Communication

3000pF coupling capacity for signal injection in HV transmission lines

Transformer PD Monitoring

Simultaneous voltage measurement and PD detection during tests

Cable Quality Assurance

Identify insulation flaws with ≤2pC sensitivity at 400kV

Substation Commissioning

Dual-function operation reduces equipment requirements by 40%

Compliance & Certifications

• IEC 60060-1: High-voltage test techniques

• IEEE 4: Standard for HV testing

• IEC 60270: Partial discharge measurements

• ANSI/NETA ATS-2021: Acceptance testing

• CE, RoHS, and UKCA certified

Safety Note: Complies with IEEE 516-2022 safety requirements for 400kV live working distances