High Frequency Lightning Current Sensor for Fast and Accurate Lightning Surge Monitoring

The High Frequency Lightning Current Sensor from Jiangyin Yucheng Electric Co., Ltd. is specially designed for capturing, measuring and recording lightning impulse current and surge signals. Adopting high-frequency magnetic core and optimized coil structure, it features ultra-wide frequency response, fast rise time, high linearity and strong anti-interference, providing reliable data support for lightning protection monitoring, surge test and electrical safety early warning in power, communication, meteorology and construction scenarios.

Electrical Performance and Technical Specifications

To meet the requirements of high-precision lightning current measurement, the High Frequency Lightning Current Sensor provides the following key parameters:

• Measuring current range: 0–50kA, 0–100kA, 0–200kA (customizable)
• Frequency bandwidth: 10Hz–20MHz
• Rise time: ≤1μs
• Typical lightning waveforms: 4/10μs, 8/20μs, 10/350μs
• Accuracy class: Class 0.5, Class 1
• Linearity error: ≤±0.5%
• Output mode: Voltage output / BNC interface
• Core material: High-frequency nanocrystalline or ferrite core
• Shell material: Flame retardant ABS, 94-V0
• Potting: Environmental friendly epoxy resin full casting
• Working temperature: -40℃ ~ +85℃
• Protection level: IP54
• Installation: Through-core or open-close type

These parameters ensure fast response, high fidelity and stable measurement under strong electromagnetic interference, fully meeting the application standards of lightning monitoring and surge protection systems.

Key Applications

The High Frequency Lightning Current Sensor is widely used in:

• Lightning monitoring and early warning systems
• Power transmission line lightning location and fault analysis
• Communication base station and tower surge protection
• Building lightning protection and grounding system detection
• Lightning impulse test equipment and surge generator
• Wind turbine, photovoltaic station lightning monitoring
• Meteorological observation and lightning parameter statistics
• Electrical safety and surge protection evaluation

It is especially suitable for occasions requiring high-frequency response, fast transient capture and long-term stable operation outdoors.

Structural and Installation Advantages

High-Frequency Optimized Structure

Special magnetic core and coil design ensure excellent high-frequency characteristics, accurately restore lightning current waveform and peak value.

Strong Anti-Interference Ability

Multi-layer shielding and full casting structure effectively suppress electromagnetic interference, ensuring measurement stability in complex lightning environments.

Flexible Installation

Through-core and open-close structures are available, no need to disconnect cables, convenient for retrofitting and on-site installation.

High Reliability & Durability

Wide temperature range, moisture-proof, anti-vibration and UV-resistant design, adapting to long-term outdoor operation.

Installation & Maintenance

• Pass the measured cable through the sensor window or open the sensor to clamp the cable.
• Fix the sensor firmly with screws or hoops.
• Connect the output signal cable to monitoring host, oscilloscope or recorder.
• Check wiring and fastening before power-on operation.

Daily maintenance is simple, only need regular inspection of fastening, wiring and signal status.

Choose Jiangyin Yucheng Electric’s High Frequency Lightning Current Sensor to achieve stable, accurate and efficient lightning surge monitoring. Contact us for customized parameters, technical support and complete solutions.