A Lightning Arrester is a crucial protective device designed to safeguard electrical equipment from overvoltage caused by lightning strikes and switching surges.
This guide introduces the types, working principle, and applications of lightning arresters in modern power systems.
What Is a Lightning Arrester?
A lightning arrester limits excessive voltage by diverting surge currents safely to the ground, preventing damage to transformers, switchgear, and transmission lines.
Types of Lightning Arresters
1. Porcelain Housed Lightning Arrester
- Excellent mechanical strength
- High resistance to environmental stress
- Suitable for outdoor substations
2. Polymer Housed Lightning Arrester
- Lightweight
- Better pollution performance
- Widely used in modern installations
Working Principle
Modern lightning arresters use ZnO varistor blocks that:
- Remain insulating under normal voltage
- Become conductive during surge events
- Quickly return to normal state after discharge
- ZnO Varistor Blocks for Lightning Arresters/ Sic Varistor Blocks for Surge arrester
Bracket and Disconnector
Bracket and Disconnector are the key parts of the surge arrester. We can do OEM production for you. You can add your logo on the products and packages.
Applications
Lightning arresters are used in:
- Power transmission lines
- Distribution networks
- Substations
- Renewable energy systems
Why Lightning Arresters Are Essential
- Protect expensive equipment
- Reduce outage risks
- Improve system reliability
- Extend equipment lifespan
Conclusion
Selecting the right lightning arrester is vital for power system protection. High-quality materials and tested designs ensure dependable performance under extreme conditions.
About AsiaPower
AsiaPower supplies porcelain and polymer lightning arresters with certified ZnO varistor blocks for global power projects.
Our official website: www.asiapower.net , Email: [email protected].