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Shinkansen type E3 series

The Shinkansen type E3 (Super-Express "Komachi") has debuted in 1997 as 2nd case of new operation through into the Shinkansen and existing local line without transfer like Yamagata Shinkansen type 400. "Komachi" means the Queen of Akita-prefecture in Japanese. The local line section between Tazawako line (from Morioka to Omagari, gauge was 1,067mm) and Oou line (from Omagari to Akita) has been improved to the same gauge 1,435 mm as the Shinkansen, since Shinkansen runs through into these lines. Moreover, type E3 is coupled with type E2, and high-speed operation of 275 km/hour is possible in the Shinkansen section as Super-express "Hayate". By the way, type E2 is typical size carbody, and type E3 is small size carbody. Therefore double systems are taken in E3 (train security, electrical voltage and etc), because of complying with smaller construction gauge in local line.

table 1. train information 

  M1sc  M2 T1 T2 M1 M2c
weight [ton] 46.0

44.1

40.6 39.0 42.8 45.7
motor type

Induction motor type MT 205 300kw/continuous rating

- -

Induction motor type MT 205 300kw/continuous rating

truck type DT 207A DT 207A TR 7005A TR 7005A DT 207A DT 207A
gear ratio 3.04 3.04 - - 3.04 3.04

carbody
[mm]

lengthsize 22,825 20,000 20,000 20,000 20,000 22,825
width 2,945 2,945 2,945 2,945 2,945 2,945
height 4,280 4,290 4,280 4280 4,080 4,280
Controller

Valuable voltage and valuable frequency inverter

braking system

Pneumatic brake+ Regenerative electrical brake by electrical
commandSnow brake/ straight air reserve brake/ holding brake

air-conditioning

semi-centralized type

passenger capacity

seated 338 person

carbody material

Aluminum alloy

Note: M1scc is the first-class coach.
 

table2. double systems in type E3

 

The Shinkansen line section
535 km from Tokyo to Morioka

Local line section
127 km from Morioka to Akita

Maximum velocity 275 km/hour 130 km/hour
Train radio LCX type  space wave type
Signal security ATC and digital signaling type ATC program type ATS
Overhead power 25 kv AC/ 50 Hz 20 KV AC / 50 Hz

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