High-Voltage Measurement Redefined

Engineered for critical high-voltage applications, the LQHVF 1000kV/300pF capacitor delivers laboratory-grade accuracy in field conditions. With industry-leading ≤3pC partial discharge performance and 3000:1 dividing ratio, this dual-function device serves as both precision voltage divider and coupling capacitor for power transmission systems.

Technical Specifications

Performance Advantages

Ultra-Low Partial Discharge

Maintains ≤3pC PD levels at 500kV (50% rated voltage), enabling precise measurements in sensitive HV testing environments.

Thermal Stability

ONAN cooling system ensures stable operation during continuous 60-minute full-load tests with ≤2°C/kV temperature gradient.

Dual-Function Design

Operates as both:

• Precision voltage divider for metering

• Coupling capacitor for PD detection systems

Measurement Integrity

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Comparative Performance Analysis

Typical Applications

• HV Laboratory Testing: Reference standard for calibration of 800kV+ systems

• Partial Discharge Detection: Coupling device for online monitoring in substations

• Power Quality Analysis: Harmonic measurement in EHV transmission networks

• Research & Development: Dielectric response testing of insulation materials

• Type Approval Testing: Compliance verification per IEC 62271

Safety & Compliance

• Designed per IEC 61869-11 (Instrument Transformers)

• Tested according to IEC 60060-1 (High-voltage test techniques)

• Meets IEEE 4-2013 (Standard for HV Testing)

• Conforms to EN 50191 (Erection of test facilities)

• Safety margins: 150% withstand voltage for 1 minute