In 2020, 50 sets of Tianxia Power voltage stabilizers, HLZW-S20KVA, won the bid project: Ulanchabu City Expressway, Inner Mongolia Autonomous Region, combined with our company's years of experience in the development and production of special power supply systems, due to mountains and trees and other environments The display screen and other equipment have high requirements for power supply reliability, and a multi-channel near-end machine can connect to N remote-end machines. It is suitable for narrow and long tunnel coverage or indoor signal coverage. For example, it can be sent to the substation of the expressway and connected to the remote machine in the tunnel through optical fiber transmission. High degree of intelligence. Fiber optic repeaters can be installed to effectively solve the problem of insufficient network coverage in the tunnel, frequency resourc...