Engineered for Demanding High-Current Applications

The LQHVF 260kV/10000pF voltage divider delivers exceptional performance in high-current measurement scenarios with its industry-leading 10nF capacitance. Designed for resonant test systems and power equipment validation, this solution provides:

• Massive 10nF capacitance for high-current measurements up to 5A

• 286kV/1min insulation withstand (110% rated voltage)

• Broad 20-300Hz frequency coverage for VLF to power frequency testing

• Scalable architecture for voltages up to 520kV

High-Current Capability

With 10000pF capacitance at 260kV, handles measurement currents up to 4.9A at 50Hz - ideal for testing high-capacitance loads like long cables and large transformers.

Technical Specifications

20Hz

→

300Hz

Innovative Design Features

High-Current Capacitor Array

Parallel capacitor design achieves 10000pF with ultra-low inductance for accurate high-current measurement.

Removable Corona Rings

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

Stabilized Removable Base

Heavy-duty pedestal with seismic restraints and forklift channels.

Scalable HV Connection

Corona-free connectors for single-stage (260kV) or series (520kV) configurations.

High-Current Capabilities

Maximum Current Handling

Calculated current capabilities at 260kV:

Industry Applications

Long Cable Testing

VLF withstand testing of 220kV+ cables up to 5km length with high capacitance loads.

Large Transformer Testing

Induced voltage tests on 500MVA+ transformers with high magnetizing currents.

Resonant Test Systems

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

Operational Advantages

• High-Current Tolerance: 29.4A capability at 300Hz

• Thermal Stability: ONAN cooling maintains ≤0.2% drift during 1-hour tests

• Wide Frequency Range: Consistent accuracy from 20Hz to 300Hz

• Enhanced Safety: 286kV/1min insulation withstand

"The 10000pF capacity allowed us to test 4km 220kV cables without external compensation - reducing setup time from 3 hours to 30 minutes."
               - Cable Testing Manager, Utility Company

Installation & Safety Protocol

1. Site Preparation: Level surface with 5m clearance radius

2. Assembly: Secure corona rings using alignment markers

3. Grounding: Dual 50mm² cables to station ground grid

4. Connection: Use high-current rated measuring leads

5. Configuration: Select single or two-stage mode

6. Safety: Maintain 6m clearance during 286kV tests

7. Duration: Maximum 60 minutes continuous operation

Compliance & Standards

Certified to international testing standards:

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

• IEEE 4: Standard for HV testing

• IEC 60502: Power cable testing requirements

• IEC 60076: Power transformer testing

Third-party certified for 10000pF capacitance at 260kV.