Surge Arrester

Protect Your Power Grid with Reliable High-Voltage Surge Arresters
Safeguard your critical infrastructure from damaging lightning strikes and switching surges with our robust surge arresters. Designed for high-voltage power grids, our arresters provide superior overvoltage protection, ensuring the stability and uninterrupted operation of your transmission and distribution systems. By diverting dangerous excess voltage safely to the ground, our products minimize downtime, protect expensive equipment, and enhance the overall safety of your network. Trust in our advanced technology for durable and maintenance-free performance in the most demanding environments.
Surge arrester has another name of lightning arrester.  It is a protective device for limiting voltage on equipment by discharging or bypassing surge current. It prevents continued flow to follow current to ground and it is capable of repeating these functions as specified per ANSI standard C62.11. There are approximately 100 lightning strikes on the Earth’s surface every second. Surge arrester does not absorb lightning or stop lightning. It diverts the lightning, limits the voltage and protects the equipment installed in parallel.

The role of surge arrester is used to protect various electrical equipment in the power system from damages that caused by lightning overvoltage, operating overvoltage, power frequency transient overvoltage. When a power line or equipment is operating at normal operating voltage, the arrester is not effective and is regarded as a circuit breaker to the ground. When a high voltage occurs and endangers the insulation of the protected equipment, the lightning arrester will immediately act to direct the high voltage impulse current to the earth, thereby limiting the voltage amplitude and protecting the communication cables and equipment insulation. When the overvoltage disappears, the arrester quickly restores to its original state, making the communication line work normally.

There are two types of insulation housing of surge arrester, one type is porcelain housing, another is polymer housing. We can prdouce both types of lightning arrester. The key elements of surge arresters are made by ourself, which include MOV( zno varistor or sic varistor), bracket and disconnector. As a leading manufacturer and supplier of surge arrestser(lightning arrester), Changsha Rich’s surge arresters are the primary protection against atmospheric and switching over voltages. Changsha Rich company offers a complete range of surge arresters for high and medium voltage applications. The range comprises of AC and DC solutions up to 1,000kV and arresters for special applications like railways, DC-voltage limiting devices and many other purposes. The designs comply with the IEC 60099-4 and ANSI/IEEEC62.11.

We also offer OEM production services and you can custom it according to your requirements.

Browse Our Surge Arrester Range to Find the Perfect Protection for Your Grid.