Lightning surge generator working principle and advantages

The working principle of the lightning surge generator: the generation of the switching transient is related to the following factors: main power system switching, slight switching action or load change in the vicinity of the instrument in the power distribution system, resonant circuit related to the switching device and various system failures , such as short circuit and arc faults in the equipment grounding system.

The surge voltage generated by lightning comes from several aspects:

1 A direct lightning strike acts on an external circuit, and a large current injected flows through a grounding resistor or an external circuit impedance to generate a voltage.

2 Indirect lightning strikes that induce voltage and current on the inner and outer conductors of the building.

The lightning ground current discharged directly to the ground near 3 is coupled to the common ground loop of the equipment grounding system. When the protection device is activated, the voltage and current may change rapidly and may be coupled to internal circuitry.

Lightning surge generator advantages:

1.LCD display, built-in computer control, man-machine dialogue, easy to operate.

2. Programmable high voltage power supply with high voltage stability.

3. Imported non-inductive high-power resistors to ensure the consistency of the surge waveform.

4. The main switch adopts the imported switch to ensure stable waveform, strong comparability and long service life.

5. Positive or negative automatic switching, the positive and negative polarity can be switched alternately during the test.

6. RS-232 communication interface, can implement remote control, can be equipped with measurement and control system software (optional function).