Traditional UPS power supply for highways

Many of the expressways are located in remote areas, and have to use agricultural power. The power supply conditions are not good, such as large voltage fluctuations and frequent power outages; environmental conditions are not good, such as large humidity in the cave, large temperature difference between winter and summer, especially The thunderstorm season has a large disturbance; the technical strength is weak and the maintenance ability is poor. Therefore, strict requirements are imposed on UPS. For example, the UPS is required to withstand harsh environments and has unattended capabilities. In addition, in order to improve the reliability of the power supply system, a first-order parameter regulator is added in front of the UPS.