HXD3D Electric Locomotive (“Hexie” Electric 3D type) is developed and manufactured by DLRC as a 6-axle passenger AC drive electric locomotive used on main lines. HXD3D is one of the passenger trains with the highest power, its design speed is 200km/h, the maximum continuous service speed is 160km/h and the power is 7200kw. The application of HXD3D electric locomotive is expected to ease the tension in railway operation of quasi-high speed locomotives, and that fills a gap in China mainland about the actual quasi-high speed application of high power AC locomotives. This locomotive is still under test currently.