Lightning impulse voltage generatoris a high-voltage testing equipment that simulates natural lightning impulse and is widely used in the insulation performance assessment of power equipment. It generates instantaneous high voltage pulses through special circuit design, providing important guarantees for the safe operation of the power system.

1、 Working principle: Simulate lightning impulse waveform

The core of a lightning impulse voltage generator is to generate steep high-voltage pulses through capacitor energy storage and discharge circuits. The device first stores electrical energy in a high-voltage capacitor bank, and then releases the energy in a short period of time through a switching device, forming a surge voltage waveform with extremely fast rise time and short duration. This waveform simulates the instantaneous voltage characteristics when lightning strikes power equipment, and can truly reflect the insulation performance of the equipment under special conditions

2、 Key technical features

The key to this device lies in accurately controlling the rise time and amplitude of the voltage waveform to meet the lightning impulse waveform requirements specified by international standards. By adjusting circuit parameters, different intensities of lightning strikes can be simulated to meet the testing requirements of equipment ranging from low voltage to ultra-high voltage. The use of automation control technology can achieve functions such as waveform monitoring and data recording, improving testing efficiency and accuracy.

3、 Typical application scenarios

In the research and development manufacturing process of power equipment, it is used to assess the lightning resistance performance of key components such as transformers, switchgear, and insulators. In the acceptance testing of the power system, it verifies whether the equipment can withstand lightning overvoltage impact. In addition, research institutions also use this equipment to study the characteristics of insulation materials and explore overvoltage protection technology.

Thelightning impulse voltage generatoris an important testing method to ensure the lightning resistance of power equipment. By scientifically simulating lightning strikes, it has built a safety line for the reliable operation of power equipment and is of great significance for maintaining the stability of the power grid.