SF6 Gas-Insulated 200KV/100pF Capacitor Voltage Divider Technical Overview

This precision high-voltage measurement device represents the cutting edge in gas-insulated divider technology, designed for critical power system applications requiring exceptional accuracy and reliability.

Core Technical Specifications

Advanced Design Features

SF6 Gas Insulation System

The device utilizes sulfur hexafluoride (SF6) gas insulation with capacitance rods, providing:

• Compact physical dimensions compared to oil-insulated units

• Elimination of combustible insulation materials

• Maintenance-free operation with sealed gas system

• Excellent dielectric strength (≈3× air at 1 atm)

Robust Operational Capabilities

• Short-circuit endurance: Withstands 100% rated voltage/current for 20 minutes

• Insulation coordination: System-level tested dielectric performance

• Environmental stability: Low temperature coefficient ensures accuracy across operating conditions

Typical Applications

1. High Voltage Laboratories: Reference measurements for calibration systems

2. GIS Substations: Integrated into gas-insulated switchgear monitoring

3. HVDC Converter Stations: AC side voltage measurement

4. Power Transformer Testing: Applied voltage monitoring during impulse tests

Installation Considerations

• Requires SF6 gas density monitoring system

• Must be installed with proper electrostatic shielding

• Low-inductance grounding connections essential

• Periodic dielectric loss measurement recommended

Compliance & Standards

This capacitor voltage divider meets or exceeds:

• IEC 61869-11 (Instrument transformers - Additional requirements for low-power passive voltage transformers)

• IEEE C57.13 (Requirements for Instrument Transformers)

• IEC 60376 (Specification of technical grade SF6)

For optimal performance, pair with compatible measuring instruments having ≥10MΩ input impedance to maintain specified accuracy levels.