LQHVF 1500kV/1500pF Capacitive Voltage Divider for 50Hz Power Networks

Engineered for extra-high-voltage measurement in 50Hz power systems, the LQHVF series delivers laboratory-grade precision in field applications. With dual-stage operation (500kV single/1500kV series) and ≤5pC partial discharge, it sets new standards for grid safety monitoring.

Technical Specifications

Dual-Stage Operation System

Single-Stage Configuration

• Voltage: 500kV operational

• Capacitance: 5250pF

• Applications:

• Substation busbar monitoring

• Generator step-up transformer testing

Two-Stage Series Configuration

• Voltage: 1500kV operational

• Capacitance: 1500pF

• Applications:

• HVDC converter station measurement

• Transmission line commissioning

Advanced Engineering Features

• ONAN Cooling Technology
  
         Oil-Natural Air-Natural circulation maintains thermal stability at 50Hz continuous operation

• Corona-Free Design
  
         Precision-machined aluminum alloy rings eliminate discharge above 400kV

• Modular Pedestal System
  
         Removable base with seismic-grade stability

• Quick-connect HV corona-free terminals

• Integrated vibration dampers

• Smart Measurement Interface
  
         Shielded lead-wire connection to variable frequency sources (45-55Hz range)

Safety & Compliance

• Double insulation barrier design

• IEC 61869-11:2018 certified (Capacitive Voltage Transformers)

• Partial discharge testing per IEC 60270:2015

• Automatic dielectric recovery after overvoltage events

Industrial Applications

• Power Grid Monitoring: Real-time voltage measurement in 380kV+ transmission networks

• Factory Acceptance Testing: Partial discharge validation for GIS systems

• Research Applications: Power quality analysis at 50Hz fundamental frequency

• Renewable Integration: Offshore wind farm step-up transformer monitoring

Operational Guidelines

• Deploy in ambient temperatures <45°C (derating required above)

• Annual dielectric loss testing per IEEE C57.152

• Transport with factory-supplied anti-corona packaging

• Verify phase-to-ground clearance ≥5 meters

Technical Innovation: The optimized 1500pF capacitance reduces phase error by 40% compared to conventional dividers at 50Hz, enabling precise power factor measurement in critical infrastructure.