Surge Arrester

There are approximately 100 lightning strikes on the Earth’s surface every second. A surge arrester 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. An arrester does not absorb lightning or stop lightning. It diverts the lightning, limits the voltage and protects the equipment installed in parallel. The distribution power line will see various voltage surges. Lightning is the main source of voltage surges.  Lightning is a random and unpredictable event. The role of surge arrester is used to protect various electrical equipment in the power system from damages that caused by lightning over voltage, operating over voltage, power frequency transient over voltage. Changsha rich can produce the surge arrester with voltage rating from 0.22kv to 1000kv.

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