Global InformationKDZ1 information
| KDZ1 | |
|---|---|
| Stock type | DYZ1 |
| Manufacturer | Changchun Railway Vehicles |
| Designer | Changchun Railway Vehicles, CRRC Zhuzhou Institute, China Academy of Railway Sciences |
| Assembly | Changchun, China |
| Constructed | 1983-1988 |
| Number built | 1 |
| Successor | KDZ1A |
| Formation | Tc-M-M-Tc |
| Operators |  China Railway |
| Specifications | |
| Car length | 25.500 m (83 ft 7.9 in) |
| Width | 3,105 mm (10 ft 2.2 in) |
| Height | 4,100 mm (13 ft 5 in) |
| Maximum speed | 140 km/h (87 mph) |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) |
The KDZ1 is the first electrical multiple unit built in China. It is an experimental alternating current electrical multiple unit, developed by Changchun Railway Vehicles, CRRC Zhuzhou Institute and China Academy of Railway Sciences in 1978 and completed in 1988, though it never saw passenger service, with it being stored after it completed its initial tests.