 the nelson river dc transmission system, also known as the manitoba bipole, is an electric power transmission system of two high voltage, direct current lines in manitoba, canada, operated by manitoba hydro as part of the nelson river hydroelectric project. it is now recorded on the list of ieee milestones in electrical engineering. several records have been broken by successive phases of the project, including the largest (and last) mercury-arc valves, the highest dc transmission voltage and the first use of water-cooled thyristor valves in hvdc. the system transfers electric power generated by several hydroelectric power stations along the nelson river in northern manitoba across the wilderness to the populated areas in the south.  it includes two rectifier stations, radisson converter station near gillam at  and henday converter station near sundance at , one [[static inverter plant|inver
Electric_power_infrastructure_in_Canada Energy_in_Manitoba Energy_infrastructure_completed_in_1972 HVDC_transmission_lines