SF6 1000kV/30pF Capacitor Voltage Divider – High Precision HV Measurement Solution

The SF6 1000kV/30pF Capacitor Voltage Divider is engineered for ultra-high-voltage (UHV) measurement in power transmission, substation testing, and high-voltage laboratories. With a rated capacity of 30pF and ≤1% measuring accuracy, this gas-insulated device ensures reliable performance under extreme electrical conditions.

Key Technical Specifications

• Frequency: 50Hz (standard power frequency)

• Rated Voltage: 1000kV (withstands 110% rated voltage for 60s)

• Dividing Ratio: 2000:1 nominal ratio

• Dielectric Loss: <0.3% (low energy dissipation)

• Temperature Coefficient: <0.0005/°C (excellent thermal stability)

Performance & Safety Features

1. Precision Measurement

Delivers ≤+1% measuring accuracy even at 1000kV, meeting IEC 60060 standards for high-voltage test techniques.

2. SF6 Gas Insulation

The gas-insulated design provides:

• Partial discharge ≤3pC at 100% rated voltage

• No arcing or corona effects up to 880kV

• Compact structure vs. oil-insulated alternatives

3. Robust Operational Limits

• Continuous operation: 60 mins at 100% rated voltage

• Short-term overload: 110% rated voltage (880kV) for 60s

• Ambient temperature range: -25°C to +55°C

Typical Applications

This SF6 voltage divider is ideal for:

• Calibration of 800kV+ UHV test systems

• On-site measurement in GIS (Gas-Insulated Switchgear)

• Harmonic analysis in HVDC transmission

• Research labs requiring NIST-traceable accuracy

Compliance & Certifications

Designed to meet:

• IEC 60060-1/-2 (High-voltage test techniques)

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

• GB/T 16927 (Chinese national HV standards)

Note: All SF6 gas handling must comply with IEC 62271-303 for environmental safety.