Lightning Arrester

The circuit which is protected from the strokes of lightning with the help of a protection device is known as lightning arrester. Here the lightning strokes are nothing but surges with high transient voltage, arcs of isolation, spark, and surge currents because of lightning, etc. These devices are used to defend the power systems by forwarding the high voltage surges in the direction of the ground. And these power systems and over headlines can also be protected by using ground wire or the earthing from the direct strikes of lightning.

Advantages

The advantages of lightning arrestor are

• Property damage can be reduced from strokes of lighting.
• Outdoor equipment of the substation can be protected
• Avoid damage in lines
• Outlet surges can be avoided
• Electromagnetic interference
• Simple to use

Disadvantages

The disadvantages of lightning arrestor are

• It occupies more space
• The installation cost is high.