540KV/30pF SF6 Gas-Insulated Capacitor Voltage Divider

This ultra-high voltage measurement device sets new benchmarks in partial discharge performance, designed for precision measurements in 500KV-class transmission systems and high-voltage laboratories.

Technical Specifications

Breakthrough PD Performance

Advanced Corona Suppression

• Triple-shield electrode design

• Ultra-smooth surface finish (Ra<0.8μm)

• SF6 gas purification system

Measurement Advantages

• Enables sensitive PD measurements in noisy environments

• Allows detection of sub-3pC insulation defects

• Maintains signal integrity for harmonics analysis

Typical Applications

EHV Transmission

• 500KV line voltage monitoring

• Grid synchronization measurements

High Voltage Labs

• Reference standard for calibrations

• Ultra-low PD testing

Transformer Testing

• Applied voltage measurements

• Partial discharge localization

Installation Requirements

1. Install in controlled environment (temperature variation <5°C/hour)

2. Maintain SF6 pressure at 0.55±0.03MPa (at 20°C)

3. Use triple-shielded coaxial cables (minimum 10mm diameter)

4. Grounding system resistance <1Ω (measured at DC)

5. Minimum clearance distances:

• 3m to grounded objects

• 5m to other HV equipment

Maintenance Schedule

Compliance Standards

• IEC 60060-1:2010 (High-voltage test techniques)

• IEC 60270:2015 (Partial discharge measurements)

• IEEE Std 4-2013 (Standard for HV testing)

• GB/T 16927.1-2011 (Chinese HV test standards)

Critical Notice: Requires minimum 10MΩ input impedance measuring instruments to maintain specified accuracy with 30pF capacitance. Never exceed 60 minutes continuous operation at rated voltage.