270KV/30pF SF6 Gas-Insulated Capacitor Voltage Divider Technical Specifications

Engineered for precision high-voltage measurements in demanding environments, this SF6-insulated divider sets new standards in partial discharge performance and measurement stability.

Key Technical Specifications

Breakthrough Performance Features

Ultra-Low Partial Discharge Design

• Industry-leading <2pC at rated voltage enables sensitive measurements

• Special electrode design minimizes corona effects

• SF6 gas purification system maintains low PD throughout lifespan

Enhanced Operational Reliability

• 30-minute continuous operation at full 270KV rating

• Withstands 297KV (1.1× rated voltage) for 1 minute without degradation

• Precision-machined components ensure stable voltage ratio

Typical Applications

Partial Discharge Testing

• Transformer PD measurements

• GIS partial discharge monitoring

High Voltage Research

• Reference standard for calibration

• Dielectric material testing

Power Quality Analysis

• Harmonics measurement

• Transient overvoltage recording

Installation Requirements

1. Install in clean, dry environment (recommended RH <70%)

2. Maintain SF6 gas pressure at 0.4-0.5MPa (20°C baseline)

3. Use shielded coaxial cables for measurement connections

4. Ensure proper grounding resistance <5Ω

Maintenance Schedule

Compliance Standards

• IEC 60270 (Partial discharge measurements)

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

• IEEE Std C57.13.6 (Digital recorder requirements)

• DL/T 848.1 (Chinese industry standard for HV dividers)

Important: For PD measurements below 2pC, use fully shielded measurement cables and install in metal-enclosed test cell to minimize external interference.