Designed for Critical Ultra-HV Applications

Engineered for power transmission and industrial systems, the LQHVF 50kV divider delivers laboratory-grade performance in field conditions. The optimized 100pF capacitance enables:

• Accurate voltage measurement at extreme potentials

• Sensitive partial discharge detection (<5pC)

• Minimal circuit loading during measurements

• High-frequency response up to 200kHz

50kV

Technical Specifications

Advanced Structural Design

Oil-Immersed Construction

High-grade mineral oil with dielectric strength >60kV/mm

Arc suppression and thermal stability

Removable Corona Rings

Precision-engineered aluminum alloy

Prevents surface discharge at extreme voltages

Modular Components

Quick-disconnect HV arm, V arm, and base

Field assembly in 10 minutes

Stabilized Base

Non-slip design with leveling feet

Secure operation on uneven surfaces

Ultra-HV Performance Features

Field Advantage: 100pF capacitance provides superior high-frequency response - essential for capturing lightning impulses and switching transients

Voltage Division

Accuracy: ≤±1% from DC to 50kHz

Phase Error: <0.1° at 50Hz

PD Detection

Sensitivity: <5pC at 50kV

Bandwidth: 20Hz-200kHz

Thermal Management System

• ONAN Cooling: Oil Natural Air Natural convection maintains safe operating temperatures

• Thermal Performance: <45°C rise during 60-min full-load operation

• Operating Protocol:

• 60 minutes continuous at 50kV

• Recommended 90-minute cooling period

• Clearance Requirements: Maintain 30cm air space around unit

Compliance & Applications

Standards Compliance: IEC 60270:2000, IEEE 4-2013, EN 60060-1:2010

Critical Applications:

• Testing of 50kV switchgear and GIS

• Partial discharge monitoring in HV transformers

• High-voltage research laboratories

• Power quality analysis in transmission systems

• Dielectric testing of insulation materials

Operational Protocol

Safety First

Grounding: 16mm² earth cable minimum

Clearance: Maintain 1m minimum personnel distance

Assembly

1. Secure base
2. Connect V-arm
3. Install HV arm
4. Attach corona rings

Operation

Ramp Rate: ≤5kV/s
Max Duration: 60min @50kV

Shutdown

1. De-energize
2. Wait 10min discharge
3. Disassemble

Pro Tip: For PD measurements at 50kV, use double-shielded coaxial cables and ferrite cores to suppress RF interference

Why Choose This Instrument?

Extreme Voltage Capability

Precision measurement at 50kV with ≤±1% accuracy

Superior Transient Response

100pF capacitance enables accurate capture of nanosecond events

Safety Assurance

Automatic discharge system with visual indicators

Thermal Resilience

ONAN cooling maintains stability during extended operation