Why is there such a testing requirement?

In the news or surrounding countries, it is often heard that lightning causes damage to people or buildings on the ground. This kind of thing always leaves people deeply saddened. With the rapid development of science and technology today, in the 1960s, humans were able to simulate lightning strikes in the sky through science, thus avoiding the damage and harm of natural lightning to humans through experiments.

The effect achieved by lightning impulse generator

The impulse voltage test system is a testing equipment that simulates high pulse voltage. In real life, high electricity and voltage in the pulse are often encountered. For example, in natural lightning strikes, there will be very high pulse currents and voltages at the lightning location, and high pulse voltages will also be induced in the surrounding area; For example, the switching operation of switchgear in the power system can also cause transient pulses and medium voltages. These transient pulses and medium voltages often have amplitudes of tens or hundreds of kilovolts or more, which can cause equipment damage and endanger personal safety. Therefore, it is necessary to conduct experimental research on impulse voltage. On the other hand, it is also meaningful to study the discharge mechanism by simulating natural egg discharge patterns.

A better combination and application of impact circuits

In order to generate high amplitude pulse voltages, the Marx multi-stage circuit invented in 1923 is still used, as shown in Figure 1. In this circuit, three-stage capacitors are charged in parallel through a high resistance R by a DC voltage source to a voltage Uo, and then synchronously discharged through a three-stage ball gap f in series, thereby obtaining a pulse voltage of nearly 3Uo on the test sample. Although there are various different circuit connections for Marx circuits in practical use, the basic principle is the same.

Summary

Although current science can simulate the phenomenon of heavy electricity experiments in nature, the harm of egg electricity to people still exists. When it comes to heavy electricity weather in daily life, we must not take it lightly. People's self-protection awareness is always the most effective way to avoid it

Formula.

Attachment: 3D structural diagram of lightning impulse