Optimized Balance of Accuracy and Discharge Control

The LQHVF 200kV/200pF capacitor delivers exceptional measurement precision with its 1000:1 voltage ratio and ±1% accuracy, while maintaining ≤2pC partial discharge at full rated voltage. Engineered for 50Hz power systems, this oil-immersed solution combines voltage division and coupling functions in a field-serviceable package with ONAN cooling.

"Achieves the optimal balance of measurement accuracy (±1%) and discharge control (≤2pC) for critical high-voltage testing applications."

Technical Specifications

Advanced Oil-Immersed Structure

[Diagram Placeholder: Oil-immersed capacitor with removable components]

Fig 1: Modular design featuring HV arm, LV arm, corona rings, and base

Structural Components

• Oil-Immersed Core: Mineral oil insulation enhances thermal stability and discharge control

• Removable Assembly:

1. Corona rings (aluminum alloy)

2. LV measurement arm (precision voltage division)

3. HV capacitor arm

4. Detachable stability base

• ONAN Cooling System: Natural oil convection with air cooling for thermal management

Performance Comparison

Key Advantages

Laboratory-Grade Accuracy

±1% measurement precision at 200kV for reliable diagnostics

Ultra-Low Discharge

≤2pC partial discharge ensures measurement integrity

Maintenance Optimized

Removable components enable onsite servicing without downtime

Thermal Reliability

ONAN cooling maintains performance during extended 60-minute tests

Industry Applications

Power Transformer Testing

Ratio verification and dielectric loss measurement

HV Cable Diagnostics

Partial discharge mapping of transmission cables

Substation Monitoring

Continuous voltage measurement for grid stability

Renewable Integration

Wind/solar farm interconnection testing

Research Laboratories

Precision HV measurement for R&D projects

Industrial Equipment

Testing of HV power supplies and X-ray generators

Compliance & Standards

Partial Discharge

IEC 60270 • IEEE 4

Safety & Construction

IEC 60060 • IEC 60358

Measurement Accuracy

IEC 61869-11 • IEEE C57.13

Quality Management

ISO 9001 • ISO/IEC 17025

Operational Benefits

Reduces measurement uncertainty by 50% compared to standard dividers while maintaining ≤2pC partial discharge - the optimal balance for critical diagnostics.

• Reduced Maintenance Costs: Modular design enables component-level replacement

• Enhanced Safety: Low PD levels minimize risk of insulation failure

• Improved Data Quality: ±1% accuracy provides reliable diagnostic baselines

• Operational Flexibility: Functions as both measurement device and coupling capacitor

• Energy Efficient: Passive ONAN cooling eliminates fan power requirements

Why Choose This Precision Capacitor?

The LQHVF 200kV/200pF represents the optimal solution for applications demanding both measurement accuracy and discharge control. Its 200pF capacity provides the ideal balance between signal resolution for measurement applications and coupling efficiency for power line communications. The oil-immersed construction with specialized purification ensures stable dielectric properties, while the removable component design extends service life through field maintenance. Certified to ≤2pC partial discharge at full 200kV rating, this capacitor exceeds the requirements of most utility testing programs while providing laboratory-grade ±1% measurement accuracy. Whether deployed in fixed substation monitoring or mobile test laboratories, it delivers uncompromised performance for the most demanding high-voltage applications.