How does lightning arrester work

lightning arresters can protect our lives and property. Do you know how a lightning arrester works? What are the specific characteristics of the arrester?

• What is the use of a lightning arrester?

• How does a lightning arrester work?

• What are the main features of a lightning arrester?

What is the use of a lightning arrester?

A arrester is a device that is attached to a wire outside a home, usually located next to a transformer. The surge arresters feature spirals of metal that are placed on the lines to protect nearby power systems. If a lightning strike occurs during a storm, a high voltage current rushes into the wires and is relieved. The arrester immediately transfers the power surge around the house to the ground or dirt.

How does a lightning arrester work?

1. A lightning arrester is a device used to prevent lightning strikes. It is connected to a wire which is grounded at one end. If lightning strikes nearby, it is charged at high voltage and sends an electrical discharge through the air to the ground.

2. The electrical ground leading to the structure is connected to the ground, so it can also be charged. The high voltage of the charge also needs to be discharged to the ground. However, if the structure is made of electrical conductors, it can also be charged, causing serious damage. This is where the lightning arrester comes in. It is designed to be charged at high voltage without being damaged. Instead, it transfers the flow of charge to the ground through a different path. As such, it protects the structure from the harmful effects of lightning strikes.

What are the main features of a lightning arrester?

1. The normally working arrester will break down quickly when encountering abnormal voltage exceeding the rated breakdown value. "Breakdown" refers to the function of the arrester in which the internal insulation breaks down instantaneously so that the voltage surge can be directed to the ground.

2. It should transfer the current at the precise moment when the instantaneous voltage reaches the rated breakdown threshold.

3. For the device to work, the breakdown voltage must exceed the power frequency normally occurring in the system. Under normal circumstances, it should not be conductive.

4. Finally, when these failures occur, the arrester should channel the electrical energy discharged without losing its durability.

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