We all know the existence of lightning surges, and lightning surge generators are mainly used to evaluate the performance of equipment when subjected to high-energy disturbances from power line and other signal line ports. So, what impact will lightning surges have on electronic equipment? Manufacturer of Lightning surge generators will tell you about it.
Lightning surges are generated in a very short time, in about microseconds. When a surge occurs, the amplitude of the voltage and current is more than twice of the normal value. This peak current is much greater than the steady-state input current because the input filter capacitor charges rapidly. The power supply should limit the surge level of AC switches, rectifier bridges, fuses, and EMI filters that can withstand. Switching the loop repeatedly, the AC input voltage should not damage the power supply or cause the fuse to blow.
1. Voltage fluctuation. Under normal working conditions, the machine will stop or start automatically. There are air conditioners, compressors, elevators, pumps or motors in electrical equipment, and computer control systems often reset without reason. Motors are often replaced or rewound. Electrical equipment shortens its service life due to malfunctions, reset, or voltage problems.
2. Cause damage to the equipment. Voltage breakdown of semiconductor devices, destroys the metallized surface of components, destroys the printing circuit, or contact point of the printed circuit board, destroys the three-end dual CR element / thyristor.
3. Cause interfere with the use of equipment. Locking, thyristor, or three-end bidirectional SCR components out of control, partial damage of data file, errors in data processing program, errors, and failure in receiving and transmitting data, premature aging, premature aging of parts and components, greatly shortened life of electrical appliances, decreased output sound and picture quality.
