LQHID 300KV/400pF Weak Damping Capacitor Voltage Divider

Engineered for ultra-high-voltage applications, the LQHID 300KV/400pF Multistage Capacitor Divider delivers precision measurements up to 300kV. Featuring advanced corona prevention, distributed damping technology, and GB311 compliance, this robust solution is ideal for power transmission testing and high-voltage research.

Technical Specifications

Advanced Design Features

Multistage Capacitor System

Series-connected pulse capacitors with distributed damping resistors eliminate inductance for accurate high-frequency response at 300kV/400pF.

Corona Prevention System

• Optimized corona cover profile prevents discharge during 300kV+ switching impulses

• Stainless steel top electrode minimizes abnormal flashover

• Electrostatic field management for clean waveform capture

Industrial Mobile Platform

Heavy-duty movable base includes:

• Polyurethane wheels with locking braces (2000kg capacity)

• High-strength steel construction for stability

• Field-installable top electrode for transport efficiency

Performance Specifications

Standards Compliance

• Full GB311 square wave response compliance (0-9.9μS)

• Compatible with IEC 60060-1 impulse test standards

• Designed for IEEE 4 switching surge measurements

Industrial Applications

• Transmission Systems: 300kV lightning impulse tests on transformers

• Renewable Energy: Wind turbine generator insulation validation

• Substation Testing: GIS circuit breaker switching surge analysis

• Research Labs: HVDC converter station transient studies

Mechanical Construction

• Base dimensions: Custom high-strength steel platform

• Electrode: Field-installable 304 stainless steel tube

• Wheel system: 150mm polyurethane with dual braking

• Corona cover: Optimized profile for 300kV positive impulses

Operational Safety

• 3-meter minimum clearance at 300kV operation

• Automatic grounding system for capacitor banks

• EMI-shielded low-voltage connections

• Corona discharge < 5pC at 250kV

Calibration & Maintenance

• Factory calibration certificate included

• Annual dielectric verification at 350kV AC

• Biannual damping resistor network inspection

• 5-year full system recertification cycle

Technical Advantages

• 400pF capacitance for superior signal integrity

• Distributed damping for minimal waveform distortion

• Field-deployable design with quick assembly

• Advanced corona control for reliable 300kV measurements

Support Services

• GB311 compliance documentation

• On-site installation supervision

• Custom calibration for specific test protocols

• Lifetime technical consultation