Engineered for Demanding High-Voltage Applications

The LQHVF 260kV/6000pF sets a new standard in high-capacity voltage measurement with its exceptional 312kV insulation withstand (120% rated voltage) and precision 6000:1 ratio. Designed for critical power system testing and research applications, this solution delivers:

• Industry-leading 6000:1 voltage ratio for microvolt-level resolution

• Enhanced 312kV/60s insulation withstand capability

• 6000pF capacitance for high-current measurement applications

• Scalable architecture for voltages up to 520kV

Breakthrough Safety Margin

Withstands 312kV for 60 seconds - 20% above standard requirements - providing unmatched safety during dielectric tests per IEC 60060-1.

Technical Specifications

6000:1 Voltage Ratio

20Hz

→

300Hz

Innovative Design Features

Enhanced Insulation System

Special dielectric formulation withstands 312kV for 60 seconds without breakdown.

Removable Corona Rings

Aerospace-grade aluminum alloy rings prevent discharge and detach for transport.

Stabilized Removable Base

Engineered pedestal with seismic-grade stability and forklift channels.

High-Current Capability

6000pF capacitance handles 2A+ measurement currents at 260kV.

Advanced Measurement Capabilities

Dual-Stage Serial Connection

Measure up to 520kV using series configuration while maintaining 6000:1 ratio precision.

Variable Frequency Operation

Direct interface to VF power sources for resonant testing across 20-300Hz range.

Industry Applications

Dielectric Withstand Testing

312kV insulation tests on bushings, transformers, and cables per IEC 60243.

Resonant Test Systems

Frequency-tuned testing of high-capacitance equipment at 20-300Hz.

High-Energy Research

Precision measurement in particle accelerators and plasma research.

Operational Advantages

• Enhanced Safety: 120% voltage withstand provides unprecedented margin

• High Resolution: 43.3V equivalent at 260kV enables nanosecond transient capture

• Thermal Stability: ONAN cooling maintains accuracy during 1-hour tests

• Scalable Architecture: Single (260kV) or series (520kV) configurations

"The 312kV withstand capability allowed us to perform safety margin tests previously requiring separate equipment - reducing test complexity by 40%."
               - Chief Engineer, High-Power Laboratory

Installation & Safety Protocol

1. Site Preparation: Level concrete pad with 5m clearance

2. Assembly: Secure corona rings using alignment markers

3. Grounding: Dual 35mm² cables to independent ground grid

4. Connection: Use double-shielded measuring leads to VF source

5. Configuration: Select single-stage or series mode

6. Safety: Maintain 6m clearance during 312kV withstand tests

7. Duration: Maximum 60 minutes continuous operation

Compliance & Standards

Certified to international safety and testing standards:

• IEC 60060-1: High-voltage test techniques (312kV validation)

• IEEE 4: Standard for HV testing

• IEC 60270: Partial discharge measurements

• ISO 9001: Quality management systems

Third-party certified at 312kV with ≤±1% ratio error.