| E993 series | |
| Service: | 2002–2006 |
| Manufacturer: | Kawasaki Heavy Industries, Tokyu Car Corporation |
| Yearconstruction: | 2002 |
| Yearscrapped: | 2006 |
| Numberbuilt: | 5 vehicles (1 set) |
| Formation: | 5 cars per set |
| Capacity: | Non-passenger |
| Depots: | Kawagoe |
| Carbody: | Stainless steel |
| Width: | 3000mm |
| Height: | 3640mm |
| Floorheight: | 1150mm |
| Doors: | 3 pairs per side 2 pairs per side (SaHa E993) |
| Maxspeed: | 120round=5NaNround=5 |
| Poweroutput: | × 2 per motor car |
| Electricsystem: | (overhead catenary) |
| Collectionmethod: | Pantograph |
| Safety: | ATC, ATS-P, ATS-SN |
The "AC Train" was an experimental 5-car electric multiple unit (EMU) train operated by East Japan Railway Company (JR East) in Japan between 2002 and 2006.[1] [2]
The E993 series "AC Train" ("Advanced Commuter Train") was developed by JR East to test and evaluate a number of new technologies and features for possible use in future commuter train designs.[1] These included features intended to reduce life-cycle costs, improve the interior passenger environment, improve accessibility, and increase environmental friendliness.[2]
The train incorporated the following features for evaluation.[2]
The 5-car articulated set was based at Kawagoe Depot on the Kawagoe Line and formed as shown below, with car 1 at the Kawagoe end, and car 5 at the Shinjuku end.[3] Cars 1 and 2 were built by Kawasaki Heavy Industries in Kobe, and cars 3 to 5 were built by Tokyu Car Corporation in Yokohama.[2]
| Car No. | 1 | 2 | 3 | 4 | 5 | |
|---|---|---|---|---|---|---|
| Designation | Tc' | M' | M | T | Tc | |
| Numbering | KuHa E992-1 | MoHa E992-1 | MoHa E993-1 | SaHa E993-1 | KuHa E993-1 |
Cars 2 and 4 were each fitted with one single-arm pantograph.[3]
Cars 1 and 2 had double-skin aluminium bodies, cars 3 to 5 had stainless steel bodies with double-skin construction used for cars 3 and 5.[2]
The train was delivered to JR East's Kawagoe Depot on 17 January 2002.[2] Test running commenced on the Kawagoe Line and Saikyo Line the following month.[2]
The train was officially withdrawn on 14 July 2006.[4] No cars are preserved.
Features tested on the E993 series, including articulated cars and direct drive motors, were subsequently incorporated in the E331 series prototype train delivered in 2006.