A mountain-route design
The Hokuriku route combines steep gradients with power-frequency changes. Kawasaki treats traction, braking and dual-frequency equipment as linked route requirements.
新幹線
E7 · Hokuriku
細看特徵
Blue crown, ivory body and copper-coloured belt.
技術與主要規格
E7 · original 2014 technical specification
The 2014 table distinguishes 260 km/h operation at introduction from 275 km/h vehicle performance. JR East now lists 275 km/h; permitted speed still depends on the route.
| 編組·輛數 / M / T | 12 cars · 10M2T |
|---|---|
| 車體結構 | 鋁合金雙層中空結構 |
| 車頭長度 | 9.1 m |
| 供電頻率 | 50 / 60 Hz |
| 牽引控制 | Three-level PWM inverter |
| 單台馬達輸出功率 | 300 kW · rated |
| 馬達結構 | 三相鼠籠式感應馬達 |
| 馬達冷卻 | 強制氣冷 |
| 供電方式 | AC 25 kV · 50 / 60 Hz |
| 煞車 | 再生煞車與電氣指令式氣軔 |
| 轉向架型式 | DT211 · TR7010 / TR7010A |
| 列車防護系統 | DS-ATC · RS-ATC |
M為動力車，T為無動力車。數值以一組列車為單位。
佐證資料 · 2026-11-07
- JR東日本 E7系新幹線電車 · 総合車両製作所 · 2014-12 · Printed pp.26–31; §2.1.1 and Table 1
Original PDF link returned 404 on 7 November 2026. The bibliographic reference is retained; use the separately cited Kawasaki paper below for newly verified design context. - E7系 · JR東日本の列車たち · JR東日本 · — · 基本情報・車両編成
解讀車輛設計
E7 · joint E7/W7 engineering account, 2016
| Traction-unit organisation | Five units: 3 + 2 + 2 + 2 + 3 cars |
|---|---|
| Gradient capability | Traction and braking designed for 30‰ gradients |
技術資料與頁碼
- 北陸新幹線用 E7系／W7系新幹線電車
川崎重工技報 第177号 · 2016-05 · pp.30–31; §1 and §2(2)–(5)
Details from the literature
Are all twelve cars powered?
The original E7/W7 description gives 10M2T: ten powered intermediate cars and two unpowered driving cars. The guide lists forty 300 kW traction motors. That makes the individual motor rating and the complete train’s installed output two different numbers.
座位指南
The builder gives row spacing of 1,040 mm in Ordinary, 1,160 mm in Green and 1,300 mm in GranClass for the original E7. These are distances between corresponding points on successive rows.
| 普通車廂 | Car 2 | 3 + 2 |
|---|---|---|
| 綠色車廂 | Car 11 | 2 + 2 |
| GranClass | Car 12 | 1 + 2 |
Seat plans and sources · JR東日本 · E7 · 総合車両製作所技報 第3号 · p.26 §2.1.2 · JR東日本 · GranClass
資料來源與更新
查核日期 2026-11-07