Abstract
We have been developing a gauge change train systems for through-operation between Shinkansen lines and conventional lines. The 1^<st> Gauge Changing Train Set (GCT) was completed in 1998 to confirm the basic efficiency of the systems. The GCT was an experimental 3-motor-car electric multiple unit (EMU) train. It was designed to run at a maximum speed of 300km/h on Shinkansen lines, and 130km/h on conventional lines. It works under a catenary voltage of AC25kV, 20kV and DC1500V. It had been tested for basic and endurance performance at high speed. We are now designing the 2^<nd> GCT for developing new gauge-changing bogies. It will be completed and started to test in late 2006.
