A ______ is a device used in electrical power systems and telecommunication systems to protect the insulation and conductors of the system from the damaging effects of lightning.

December 22, 2022

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Answer: 1. lightning arrester

Explanation:

A lightning arrester is a device used in electrical power systems and telecommunication systems to protect the insulation and conductors of the system from the damaging effects of lightning
A device that protects the circuit from lightning strokes is known as a lightning arrester.
The lightning strikes 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. These power systems and over headlines can also be protected by using ground wire or earthing from the direct strikes of lightning.

Working Principle:

The lightning arrestor working principle is that once the voltage surge travels throughout the conductor, it reaches the arrestor's location where it is installed.
So, it will break down the insulation of the lightning arrestor for a moment, so voltage surge can be discharged toward the ground.
Once the system's voltage falls under the fixed value, the insulation will be restored among the ground & conductor. Further, the current flow toward the ground will be stopped

Additional Information

Feeders are the power lines through which electricity is transmitted in power systems.
Buchholz relay is used for the protection of transformers from the faults occurring inside the transformer.
A busbar is a metallic bar in a switchgear panel used to carry electric power from incoming feeders and distribute it to the outgoing feeders.