LQHVF 800kV/3500pF Coupling Capacitor & Capacitive Voltage Divider

Engineered for ultra-high-voltage applications, the LQHVF 800kV capacitive divider delivers laboratory-grade precision in field environments. With dual-unit modular design and industry-leading ≤2pC partial discharge performance, it's ideal for critical infrastructure testing.

Core Technical Specifications

Advanced Engineering Features

Modular Series Design

Two 400kV/7000pF units connected in series provide:

• Transport-friendly configuration (reduced height/weight)

• Individual unit testing capability

• Redundancy for critical operations

Corona-Free Operation

• Aluminum alloy corona rings optimized for 800kV

• Detachable rings for compact transportation

• Scalable HV connections for different test configurations

Precision Measurement System

Special lead-wire connects directly to variable frequency power sources for:

• Single-stage and two-stage serial voltage measurements

• Harmonic distortion < 0.5%

• Automatic temperature compensation

Structural Advantages

Optimized Mechanical Design

• Removable Pedestal: Provides stability while enabling rapid redeployment

• ONAN Cooling: Natural oil convection maintains <55°C at full load

• Transport-Optimized: Componentized assembly fits standard HV equipment trailers

Performance Validation Tests

Industry Applications

Substation Commissioning

800kV GIS testing with 2000:1 ratio for precise RMS measurement

Partial Discharge Mapping

≤2pC sensitivity for transformer/cable defect detection

Renewable Energy Grids

HVDC converter station monitoring with VF power source compatibility

Compliance & Certification

• IEC 60060-1/2: High-voltage test techniques

• IEEE 4: Standard for HV testing

• IEC 60270: Partial discharge measurements

• IEC 60137: Insulated bushings

All units include NIST-traceable calibration and dielectric loss test certificates.

Field Deployment Tip

For PD measurements above 600kV, maintain relative humidity <70% and use shielded measuring leads to preserve ≤2pC sensitivity.

Ordering Information

Package includes: Two capacitor units, aluminum corona rings, removable pedestal, HV measuring lead-wire kit, and calibration documents. Request factory test reports for 880kV withstand validation.