A surge is a condition occurring in the voltage or the power supply due to the sudden change in the value. In terms of electricity, these are termed as Voltage spikes or Voltage transients. It occurs for a short span but is strong enough to destroy the circuits. To protect from such spikes an electronic device that is installed in the appliances such that the circuit protection from spikes and surges is provided.
This type of device is known as
Surge Protector. The purpose of it using surge protector devices is to protect your valuable electronic products from the damages. To clarify how a surge arrester works, we must first clarify what it is used for. Lightning rods are devices designed to protect an electrical system in the event of an unexpected discharge.
Sudden voltage changes can ruin the delicate components of an electrical system and generally fry everything.Lightning rods function as a defense against voltage spikes by diverting excess voltage to the ground. It is better to think of a lightning rod as a street with two paths. During regular use, the arrester allows voltage to pass through the system normally.
However, when a spike is detected, the arrester redirects the excess through its fixed line, while allowing the regular voltage to continue normally. In short, it is a security device that ensures that your network continues to function normally even in the event of unexpected spikes. Surge arresters are used to keep buildings safe from lightning strikes, for example, but they also work for smaller scale surges and as such are great protection.
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You Need to Know What is all about Surge Protection DevicesA Simple Guide You Need for Surge Arrester 
