The transmission system is the link between the power generation terminal and the power consumption terminal, and forms a complete and closed-loop electric energy transmission system together with the substation system. Long-distance transmission depends on UHV and EHV, and the regional power grid relies on 35kV, 110kV and 220kV transmission lines and corresponding substation systems to realize networking and complete power supply to the load end.Boshida Group Co., Ltd. can provide a full range