HVPS- I: 30kV 4kW DC High Voltage Power Source for Electron Beam Welder, HVPS- II: 60kV 6kW DC High Voltage Power Source for Electron Beam Welder, HVPS- III: 60kV 12kW DC High Voltage Power Source for Electron Beam Welder, 100kV 70A High Voltage Shielded Cable