400kV ~ 600kV Range
LQHVF 550kV/30pF Gas-Insulated Capacitor Voltage Divider
Precision measurement solution for ultra-high voltage applications featuring gas-insulated technology and minimal 30pF capacity for high-impedance systems.
Ultra-Low Loading: Minimal 30pF capacity ensures negligible impact on high-impedance test circuits
Technical Specifications
Parameter | Specification | Test Standard |
---|---|---|
Rated Voltage | 550kV | IEC 60060-1 |
Rated Capacity | 30pF | IEEE 4 |
Measurement Uncertainty | ≤1% | IEC 60060-2 |
Insulation Medium | SF₆ gas (or equivalent) | IEC 60376 |
Continuous Operation | 60 minutes @ 100% rating | IEEE C57.91 |
Measurement Method | HV & LV arm measurement | IEC 61869-5 |
Gas-Insulated Technology Advantages
Superior Insulation Performance
SF₆ gas dielectric strength 3x air
Uniform electric field distribution
Eliminates partial discharge risks
Ultra-Low Capacitance Design
30pF capacity minimizes circuit loading
Ideal for high-impedance systems
Preserves test circuit characteristics
Compact Sealed System
Gas-tank mounted components
Hermetically sealed against contaminants
Maintenance-free operation
Precision Measurement System
Dual-Arm Measurement
Simultaneous HV & LV arm monitoring
Cross-verification for accuracy
≤1% measurement uncertainty
Gas-Tank Construction
All active components sealed in tank
Corrosion-resistant enclosure
Optimal moisture control
Thermal Management
Natural gas convection cooling
Stable performance during 60-min operation
No external cooling required
Performance Validation
Test Parameter | Result | Benefit |
---|---|---|
Measurement Uncertainty | ≤0.8% | High-precision readings |
Capacitance Stability | ±0.1pF variation | Consistent performance |
Partial Discharge | Undetectable | Gas insulation advantage |
Thermal Drift | <0.05%> | Stable in varying temperatures |
Testing conducted per IEC 60060-2 and IEEE 4 standards
Specialized Applications
High-Impedance Research
Minimal circuit loading for precision experiments
Particle Accelerators
Ultra-precise voltage measurement in sensitive systems
High-Voltage Laboratories
Reference standard for calibration systems
Semiconductor Manufacturing
Critical measurement for ion implantation systems
Compliance & Certifications
IEC 60060-1: High-voltage test techniques
IEEE 4: Standard for HV testing
IEC 60376: SF₆ gas specifications
IEC 61869-5: Capacitor voltage transformers
ISO/IEC 17025: Testing laboratory competence
CE, RoHS, and UKCA certified
Environmental Note: Uses SF₆ alternatives or recycled gas meeting IEC 60480 standards