SF6 Standard Capacitor
LQSC 1500KV SF6 Gas Standard Capacitor | Ultra-High Voltage Precision Measurement
Designed for critical high-voltage applications, the LQSC 1500KV/20pF SF6 Gas Insulated Standard Capacitor provides unmatched accuracy in capacitance and dissipation factor (tan δ) measurements. With a 1650KV withstand voltage and ultra-low loss (tan δ ≤ 1×10-5), it’s engineered for reliability in extreme electrical testing environments.
Technical Specifications
Rated Voltage (Un): 1500KV (±3×10-5 deviation)
Withstand Voltage: 1650KV (10% above rated)
Capacitance Range: 20-50pF (pressure-stable within 2.2×10-3/kPa)
Partial Discharge: ≤10pC (per IEC 60270)
Temperature Range: -5°C to 45°C (3×10-5/°C coefficient)
SF6 Gas Insulation: 350±50 kPa (humidity ≤75%)
Key Applications
Power Transformer Testing: Tan delta and capacitance diagnostics per IEEE C57.12.90.
HV Cable & Bushing Assessment: Detects insulation degradation in 132-500kV systems.
Generator/Motor Analysis: Measures dielectric losses in windings up to 1500KV.
Capacitive Voltage Dividers: Enables transformer loss measurement with 0.1% accuracy.
Design Advantages
SF6 Gas Technology: Minimizes dielectric loss (tan δ < 0.00001) for stable readings.
Corona-Free Electrodes (≥200KV): Optimized top electrode ensures linear field distribution.
Mobility: Wheel-mounted for lab/field portability (1000m altitude rating).
Interoperability: Compatible with HCL 2876/HCL 2840 tan delta bridges and third-party systems.
Included Accessories
Component | Function |
---|---|
SF6 Pressure Gauge | Real-time gas monitoring |
Aviation/LEMO Connector | Secure HV signal transmission |
Corona Ring (for ≥200KV) | Prevents partial discharge |
Compliance & Standards
Meets global requirements for HV testing:
IEC 61869-11: High-voltage instrument transformers
ANSI/NETA ATS-2021: Acceptance testing protocols
IEC 60270: Partial discharge measurement
Why This Capacitor?
With its 1500KV rating and SF6 insulation, the LQSC series is ideal for:
High-voltage research labs
Utility-scale transformer testing
Manufacturers of GIS (Gas Insulated Switchgear)