SF6-1000kV/100pF Capacitor Voltage Divider – High-Capacity HV Measurement & Coupling

The SF6-1000kV/100pF Capacitor Voltage Divider combines ultra-high-voltage measurement and coupling functions in one compact, gas-insulated package. With 100pF rated capacity and 3000:1 dividing ratio, it delivers ≤1% accuracy for power frequency (50Hz) measurements up to 1100kV.

Core Technical Specifications

Dual-Function Design

1. Voltage Measurement Mode

• ≤+1% measuring accuracy at 1000kV

• Temperature stability (<0.0005/°C)

• IEC 61869-1/-2 compliant

2. Coupling Capacitor Mode

• Enables power line carrier communication (PLC)

• 100pF capacity for signal injection

• SF6 insulation prevents signal attenuation

Robust Performance Features

• Overload Capacity: 110% rated voltage (1100kV) for 60 seconds

• Continuous Operation: 30 minutes at 100% rated voltage

• Structure: Conducting rod + SF6 gas capacitor (no oil required)

Typical Applications

• UHV substation monitoring (800kV+ systems)

• Coupling capacitor voltage transformers (CCVT)

• HVDC converter station measurements

• On-line partial discharge detection

Compliance Standards

• IEC 61869 (Instrument transformers)

• IEEE C57.13 (Accuracy classes)

• GB/T 4705 (Coupling capacitors)

Note: Requires SF6 gas density monitoring per IEC 62271-303 standards.