What is a high-voltage pulse power grid? Working principle of high-voltage pulse power grid

Ⅰ.How many volts does high voltage refer to?

      The definition of high voltage varies depending on the application field and industry. Generally speaking, a voltage greater than a certain value is considered to be high voltage. The following are some common definitions and application fields of high voltage:

       1. AC power grid: High voltage usually refers to the high-voltage transportation line. According to international standards, high voltage is a voltage exceeding 1000 volts.

       2. Power industry: High voltage refers to the voltage level used in power transmission and substation, including 220kV, 330kV, 500kV, 750kV, 1000kV, and is different from the high voltage in the following situations:

        Low voltage: 35kV and below, common ones are 10kV, 6kV, etc.;

        Medium voltage: 110kV, common ones are 66kV, etc.;

      3. Industrial application: High voltage usually refers to voltages higher than 1000V, which are widely used in industrial control and medium and high voltage industries.

The definition of high voltage varies from industry to industry. Generally speaking, voltages exceeding 1000V or above are considered high voltage, but in fact, it should be judged according to specific circumstances and application areas.

Ⅱ.What is a high-voltage pulse network

      A high-voltage pulse network (HVPN) is a device used to perform transient high-voltage tests on electronic equipment and components. In a high-voltage pulse network, electrical components such as high-voltage pulse generators, discharge capacitors, and switch tubes are used to store electrical energy in discharge capacitors. Under trigger control, the electrical energy in the capacitor is instantly released through the switch tube, and a high-voltage pulse current signal is provided to the tested components.

      High-voltage pulse networks are often used to test electronic components with poor withstand voltage and durability to check their reliability in harsh electrical environments. The output pulse width of the high-voltage pulse network is short and the peak voltage is high. It can simulate the impact of extreme high-voltage environments such as lightning strikes and electrostatic discharge on electronic equipment, so that testers can better estimate their durability when designing products.

      In practical applications, high-voltage pulse power grids can detect fault problems that are difficult to detect through conventional electrical detection methods, such as hidden breakdown phenomena, thereby providing strong technical support for product quality improvement and reliability assurance.

Ⅲ.Working principle of high-voltage pulse power grid

      High-voltage pulse power grid is a device used to test electronic components. It uses electrical components such as high-voltage pulse generators, discharge capacitors, and switch tubes to store electrical energy in discharge capacitors. Through trigger control, the electrical energy in the capacitor is released instantly, and a high-voltage pulse current signal is provided to the components under test, thereby completing the test of electronic components. 

       1. Power supply: The high-voltage pulse power grid relies on an external power supply, generally an AC power supply.

       2. Charging process: The power supply sends electrical energy to the high-voltage pulse generator, which increases the electrical energy to a certain voltage level through boost operation and stores it in the capacitor, and the capacitor voltage gradually increases.

       3. Discharging process: During the test, the tester triggers the controller to control the switch tube so that the electrical energy stored in the capacitor is released to the components under test. The electric energy stored in the capacitor is discharged instantly, forming a set of high-voltage pulse current signals, which provide sufficient test voltage and current signals to the components under test. The peak value, duration and other parameters of the test voltage can be set as needed.

       4. Test result processing: After the components under test receive the high-voltage pulse signal, a set of corresponding response waveforms will be generated. By analyzing and processing these waveforms, the reliability and durability of the components under extreme high-voltage environments can be judged.

In short, the high-voltage pulse power grid uses the electrical quality of capacitors to test electronic components, which can help testers better estimate the reliability and durability of components under specific working environments.