SF6-1200kV/70pF Capacitor Voltage Divider - Ultra-High Voltage Measurement for Extreme Conditions

The SF6-1200kV/70pF Capacitor Voltage Divider represents the cutting edge in ultra-high-voltage (UHV) measurement technology, engineered for precision testing at the extreme upper limits of electrical systems (up to 1260kV). Its optimized 70pF capacity and 4000:1 ratio deliver laboratory-grade accuracy in field conditions.

Technical Specifications

Breakthrough Performance Features

1. Extreme Voltage Capability

• 105% overload capacity (1260kV for 60s)

• Designed for IEC 60060-3 "High Voltage Testing" standards

• SF6 gas insulation prevents corona discharge

2. Precision Partial Discharge Detection

• Industry-leading ≤1pC sensitivity at 800kV

• Integrated shielding for EMI-free measurements

• Compatible with IEC 60270 test systems

3. Optimized Duty Cycle

• 5-minute active measurement periods

• 30-minute cooling intervals

• Maximum 20 cycles per 24-hour period

Specialized Applications

• UHV Research Facilities: 1000kV+ prototype testing

• HVDC Converter Stations: Valve tower monitoring

• GIS Condition Assessment: Partial discharge mapping

• Lightning Impulse Testing: 1.2/50μs waveform analysis

Compliance & Safety

• Meets IEC 60060-1/-2/-3 full series standards

• IEEE 4-2013 compliant impulse testing

• SF6 gas handling per IEC 62271-303

• Third-party verified per CNAS/ILAC standards

Operational Note: The 5min/30min duty cycle is critical for maintaining dielectric stability at 1200kV+ operation. Continuous monitoring of SF6 gas pressure (0.4-0.6MPa recommended) is required.