Technical Specifications

Advanced Design Features

Dual-Frequency Operation

Precision measurement at 50Hz and 150Hz:

• Variable frequency power source compatibility

• Stable ratio accuracy across frequencies

• Phase displacement <0.1°

Scalable HV Connections

Flexible measurement configurations:

• Corona-free HV terminals

• Single-stage and two-stage serial measurement

• Special shielded lead-wire system

Transport-Optimized Design

Field-deployable components:

• Removable aluminum corona rings

• Stabilizing pedestal with quick-release

• Modular assembly (30 min setup)

Performance Validation

Certified Testing Protocol

• Partial discharge <2pC @ 60% rated voltage (210kV)

• Dielectric loss <0.3% at 50Hz and 150Hz

• Insulation withstand: 385kV/1min (110% rated) with zero discharge

• Thermal stability: <3°C temperature rise during 60-min operation

• Frequency response variation <0.2% (50-150Hz)

IEC 60270                        IEC 60060-1/2                        IEC 61869-11                        ISO/IEC 17025

Measurement Capabilities

Multi-Stage Connection System

Single-Stage Configuration

• Direct HV measurement up to 350kV

• Special lead-wire to variable frequency source

• Accuracy: ≤±1%

Two-Stage Serial Connection

• Extended voltage measurement capability

• Scalable corona-free connections

• Phase-synchronized measurement

HV Connection: Corona-free design with shielded connectors prevents surface discharge during measurement

Industrial Applications

Frequency-Variable Testing

VLF (Very Low Frequency) applications:

• Cable withstand testing (0.1Hz - 0.01Hz)

• Transformer diagnostic testing

• Rotating machine insulation testing

High-Power Laboratories

Precision measurement for:

• Impulse voltage waveform analysis

• Partial discharge localization

• Dielectric response testing

Field Testing

Transportable HV measurement:

• Substation equipment diagnostics

• Renewable energy farm commissioning

• On-site calibration of HV systems