100kv ~ 200kV Range
LQHVF 100kV/15000pF Capacitive Voltage Divider & Coupling Capacitor
High-capacity solution for industrial power testing featuring 15nF capacitance and dual-function operation. Combines precision voltage measurement with coupling capabilities for substation monitoring, resonant testing, and high-energy applications.
Technical Specifications
Rated Voltage: 100kV AC RMS
Nominal Capacitance: 15,000pF (15nF)
Dividing Ratio: 1000:1 (±1% accuracy)
Frequency: 50Hz (30-300Hz optional)
Dielectric Loss: <0.4% @ 25°C
Insulation Withstand: 110kV/1min (110% rated voltage)
Cooling System: ONAN (Oil Natural Air Natural)
Operating Duration: 60 minutes continuous @ 100% voltage
Industrial Structural Design
Robust Construction
Aluminum Corona Rings: Lightweight alloy reduces shipping weight while preventing discharge
Removable Pedestal: Heavy-duty base with quick-release maintenance access
Scalable HV Connections: Corona-free terminals for flexible configurations
Oil-Immersed Design: Mineral oil insulation for thermal stability
Measurement System
Special Measuring Lead-Wire: Direct interface with variable frequency sources (30-300Hz)
Dual-Stage Operation: Single-stage or series configurations
HV Corona-Free Connection: Prevents measurement interference
Performance Validation
Parameter | Test Standard | Performance |
---|---|---|
Capacitance Stability | IEC 60270 | ±0.9% from 10-100% voltage |
Voltage Withstand | IEC 60060-1 | 110kV/1min (110% rated) |
Temperature Rise | IEEE C57.19.00 | 36°C above ambient @ full load |
Phase Error | IEC 61869-11 | <3 minutes at 50Hz |
Compliance: Meets IEC 61869-11, IEEE C57.13, and ANSI/NETA MTS-2023 standards.
Industrial Applications
Power Transmission
Substation busbar monitoring
Transformer diagnostic testing
Switchgear partial discharge analysis
Resonant Testing
High-voltage cable testing
Large capacitor bank validation
GIS commissioning
Industrial Processes
Electrolytic manufacturing
High-power industrial lasers
Semiconductor fabrication
Operational Advantages
High-Capacity Performance: 15,000pF for energy-intensive applications
Dual-Function Design: Voltage divider and coupling capacitor in one unit
Thermal Management: ONAN cooling maintains stability
Maintenance Optimized: Removable base enables field servicing
Measurement Flexibility: Dual-stage configuration for versatile setups
Installation & Integration
Foundation Requirements
Base Area: 0.35m² reinforced concrete
Anchoring: Four M16 anchor bolts
Clearance: 2.2m radial clearance
Electrical Connection Protocol
Establish dual 40mm² ground connections
Connect measuring lead-wire to variable frequency source
Configure for single-stage or dual-stage operation
Implement corona-free HV connections
Perform step-test (25%, 50%, 75%, 100%)
Safety & Maintenance
Critical Procedures
Pre-Operation Check: Verify oil level and grounding
Thermal Monitoring: Track temperature during operation
Discharge Protocol: 8-minute discharge after operation
Maintenance Schedule
Interval | Procedure |
---|---|
Quarterly | Dielectric fluid integrity test |
Biannually | Capacitance stability verification |
Annually | Full calibration and certification |