Industry-Leading Solution for Extreme Voltage Applications

The LQHVF 650kV/3000pF dual-function system represents the pinnacle of high-voltage engineering. With its innovative modular design and 650kV rating, this solution delivers unmatched performance for power transmission networks, HVDC converter stations, and high-power testing laboratories requiring extreme voltage capabilities.

Engineering Breakthrough: Modular 325kV units can operate independently or combine for 650kV applications, providing 40% more voltage capacity than standard 600kV systems while maintaining compact dimensions (Ø300/Ø1800×7000mm) and weight under 480kg.

Technical Specifications

Modular Configuration System

Standalone Mode: Single 325kV module (6000pF) for substation applications

Series Mode: Two modules combined for 650kV operation (3000pF)

➔ Field reconfiguration time: <20 minutes

Compact Mechanical Design

Dimensions: Ø300/Ø1800×7000mm

Weight: <480kg (complete system)

Optimized for transportation and installation in space-constrained facilities

Advanced Engineering Features

Ultra-High Voltage Capacity

650kV rating with 700kV withstand capability for the most demanding applications.

High-Precision Measurement

2000:1 dividing ratio with ≤1% accuracy ensures reliable data in critical tests.

Aluminum Corona Rings

Lightweight alloy rings eliminate corona discharge up to 700kV while optimizing logistics.

Removable Stabilizing Pedestal

Quick-disconnect base with vibration damping ensures stability during field measurements.

Multi-Configuration Capability

Special lead-wire system supports:

• Single-module (325kV) and dual-module (650kV) operation

• Direct connection to variable frequency power sources

• Scalable corona-free HV connections

Enhanced ONAN Cooling

Optimized thermal management maintains stable operation during extended testing.

Dual-Functional Operation

Coupling Capacitor Mode

3000pF coupling capacitance with <0.2% dielectric loss for power line carrier systems.

Precision Voltage Divider

2000:1 ratio with ≤1% accuracy for high-voltage measurements in test applications.

Industry Applications

HVDC Converter Stations                    Ultra-High Voltage Transmission                    Power Transformer Testing                    High-Power Laboratories                    Grid Stability Research

HVDC System Commissioning

Precision voltage measurement in ±800kV converter stations during commissioning tests.

UHV Transmission Testing

Dielectric testing for 1000kV+ AC transmission equipment and components.

Research & Development

Reference standard for next-generation ultra-high voltage equipment development.

Performance Validation

• Dielectric Strength: Certified 700kV withstand for 1 minute with zero discharge events

• Partial Discharge: Evaluated with reactor systems per IEC 60270 requirements

• Thermal Stability: ≤15°C oil temperature rise during 60-minute continuous operation

• Mechanical Integrity: Vibration testing per IEC 60068-2-6 standards

Safety & Compliance

Electrical Safety

• Clearance distances: IEEE 1308-2020

• Dielectric testing: IEC 60060-1/-2

• Modular connection safety: IEC 61936

Environmental Protection

• Outdoor operation: IP65 rating

• Transportation safety: IEC 60068-2-27

• Corrosion resistance: IEC 60068-2-52

Certifications

• UL 61010-1

• CE Marking

• RoHS Compliance