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Gas Coupling Capacitor

HGCC 1200KV/500pF SF6 Coupling Capacitor | 1200kV Ultra-High Voltage Measurement

Industry-leading HGCC 1200KV/500pF SF6 capacitor delivers 1200kV operation with ≤1pC partial discharge at 800kV. Features <0.3% dielectric loss and 1260kV withstand capability.


  • US$1.00; Negotiated Price
  • Lead time: 90days

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Product Details

Product Tags

HGCC 1200KV/500pF SF6 Gas Insulated Coupling Capacitor

Pushing the boundaries of high-voltage measurement, the HGCC 1200KV/500pF sets new standards with its 1200kV rating and exceptional ≤1pC partial discharge performance at 800kV. This SF6 gas-insulated capacitor delivers laboratory-grade precision for the most demanding ultra-high-voltage applications.

Technical Specifications

ParameterSpecification
Rated Voltage1200kV
Rated Capacitance500pF ±3%
Frequency50Hz
Dielectric Loss (tanδ)<0.3%
Temperature Coefficient<0.0005
Measuring Accuracy≤±1%
Partial Discharge≤3pC @ 1000kV, ≤1pC @ 800kV
Withstand Voltage1260kV (105%) for 60s
Insulation MediumSF6 Gas

Breakthrough Performance

1. World-Class Voltage Endurance

  • 1260kV (105% rated voltage) withstand for 60 seconds

  • Optimized 5-minute operational bursts at 1200kV

  • Advanced thermal design for 20 daily cycles

2. Unmatched Partial Discharge Control

  • Industry-low ≤1pC at 800kV operation

  • Ultra-clean ≤3pC performance at 1000kV

  • Special electrode polishing minimizes corona effects

3. Precision Thermal Management

  • 5 minutes operation / 30 minutes cooling cycle

  • Maximum 20 cycles per day (100 minutes total operation)

  • Integrated temperature sensors for real-time monitoring

Engineering Innovations

Advanced Gas System

Multi-chamber SF6 design maintains optimal pressure gradients across all voltage levels

Conducting Rod Architecture

Precision-machined tungsten core with graded potential distribution

Critical Applications

  • UHV Transmission Research: 1100kV+ power line development

  • Particle Accelerators: High-energy physics experiments

  • HVDC Converter Stations: Valve hall testing

  • National Grid Testing: Next-gen transmission validation

Certifications & Standards

  • IEC 61869-11 (UHV measurement devices)

  • IEEE Std 1313.2 (Extreme voltage testing)

  • CIGRE TB 496 (UHV equipment guidelines)

Competitive Advantages

  1. Voltage Leadership: Highest commercially available 1200kV rating

  2. Discharge Precision: Best-in-class ≤1pC at 800kV

  3. Thermal Efficiency: Patented cooling cycle technology

  4. Research-Grade: Adopted by 8 national high-voltage labs

Operational Protocol

Strict adherence to 5min/30min duty cycle required. Exceeding 20 daily cycles voids warranty.

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