High Frequency Lightning Current Sensor for Precise Surge Detection and Lightning Protection Monitoring

The High Frequency Lightning Current Sensor from Jiangyin Yucheng Electric Co., Ltd. is engineered for accurate detection and real-time monitoring of high-frequency lightning and surge currents in modern power systems. Designed with advanced sensing technology and high-speed response capability, it provides reliable protection for electrical equipment, communication systems, and industrial power networks under extreme transient conditions.

Unlike conventional current sensors, this series adopts a high-sensitivity magnetic core combined with optimized coil winding structure to ensure excellent performance in detecting fast-rising lightning impulse currents. It delivers stable output signals even under strong electromagnetic interference, making it a critical component in lightning protection and surge monitoring systems.

Electrical Performance and Technical Specifications

To meet demanding surge detection requirements, the High Frequency Lightning Current Sensor offers:

• Measuring current range: 0.5kA ~ 200kA (impulse current)
• Response time: ≤ 1μs (ultra-fast detection)
• Frequency range: DC – 1MHz
• Accuracy: Class 1.0 / 0.5 optional
• Output signal: Analog voltage or current output (customizable)
• Core material: High permeability nanocrystalline or amorphous alloy
• Insulation level: High-voltage reinforced insulation design
• Shell material: Flame-retardant industrial-grade ABS / epoxy resin  encapsulation
• Working environment: -40°C ~ +85°C

These parameters ensure high sensitivity, fast response, and strong anti-interference capability, enabling reliable detection of lightning strikes and surge events in complex environments.

Key Applications
The High Frequency Lightning Current Sensor is widely used in:

• Lightning protection monitoring systems
• Substation surge detection systems
• Wind power and photovoltaic power stations
• Telecommunication base stations
• Railway and transportation power systems
• Industrial power distribution networks

It is especially suitable for critical infrastructure requiring real-time surge monitoring and system protection.

Structural and Installation Advantages
High-Speed Response Design
Special coil structure ensures microsecond-level response to capture lightning impulse currents accurately.

Strong Anti-Interference Capability
Advanced shielding and high-permeability core materials effectively suppress electromagnetic noise.

Compact and Flexible Installation
Split-core or through-core structure allows easy installation without interrupting existing wiring systems.

Long-Term Stability
Flame-retardant insulation materials and sealed encapsulation ensure reliable operation in harsh outdoor and industrial environments.

Installation & Maintenance

• Install the sensor around the grounding conductor or lightning down conductor.
• Ensure proper alignment of the core for accurate measurement.
• Connect output terminals to monitoring or data acquisition systems.

Routine maintenance includes periodic inspection of mounting stability and signal connection integrity.

Explore High Frequency Lightning Current Sensor solutions from Jiangyin Yucheng Electric for advanced lightning protection, surge monitoring, and high-speed current detection applications. Contact us for technical specifications, customization options, and system integration support.