{
  "edition": "2026-11-07",
  "id": "w7",
  "locale": "zh-Hant",
  "url": "https://senroam.com/zh-Hant/trains/w7/",
  "name": "W7 · Hokuriku",
  "summary": "W7 · Hokuriku · Sister design to E7. Check the operator or set marking.",
  "type": "train",
  "questions": [],
  "sources": [
    {
      "url": "https://www.jr-odekake.net/railroad/train/w7/",
      "checked": "2026-11-07",
      "lang": "ja"
    }
  ],
  "detail": "Sister design to E7. Check the operator or set marking.",
  "technical": {
    "record": {
      "scope": [
        "W7 · W formation; JR West representative data, 2025",
        "W7系 · W編成、JR西日本2025年代表諸元"
      ],
      "rows": [
        [
          "formation",
          "12 cars",
          "12両",
          "west2025"
        ],
        [
          "mass",
          "542.1 t · representative train",
          "542.1 t · 代表編成",
          "west2025"
        ],
        [
          "speed",
          "260 km/h",
          "260 km/h",
          "west2025"
        ]
      ],
      "note": [
        "JR West publishes its W7 specification separately from JR East’s E7. The representative train mass is tied to the 2025 source; individual sets and later alterations require their own records.",
        "JR西日本のW7系はJR東日本のE7系と分けて諸元を確認する。ここでの列車重量は2025年資料の代表値で、個別編成や後年の改造は別に確認する。"
      ]
    },
    "sources": {
      "jr2013": {
        "title": "JR-East Shinkansen",
        "publisher": "JR East · Yagishita",
        "url": "https://www.schienenfahrzeugtagung.at/download/PDF2013/02_Yagishita.pdf",
        "language": "en",
        "date": "2013",
        "locator": "Slide “Features of rolling stock”, comparison table",
        "supports": "E2-1000, six-car E3, E4, E5, E6 formation, train length, body width, per-motor continuous output, electrical supply and signalling as presented in 2013.",
        "checked": "2026-11-07"
      },
      "hitachi97": {
        "title": "新型高速新幹線電車",
        "publisher": "日立製作所 · 日立評論",
        "url": "https://www.hitachihyoron.com/jp/pdf/1997/02/1997_02_02.pdf",
        "language": "ja",
        "date": "1997-02",
        "locator": "Table 1, printed pp.154–155",
        "supports": "Historical E1 supply/formation; original E2 50/60 Hz capability. Early E3 five-car data is excluded from the later six-car profile.",
        "checked": "2026-11-07"
      },
      "e1launch": {
        "title": "全車2階建て新幹線電車",
        "publisher": "日本機械学会 · JR東日本提供",
        "url": "https://www.jsme.or.jp/tldnew/uploads/sites/26/2022/01/NL07.pdf",
        "language": "ja",
        "date": "1994-03",
        "locator": "Article “全車2階建て新幹線電車”",
        "supports": "Original E1 240km/h, VVVF control and regenerative/electrically commanded air braking.",
        "checked": "2026-11-07"
      },
      "e4hitachi": {
        "title": "社会・産業・家庭 · E4系2階建新幹線電車",
        "publisher": "日立製作所 · 日立評論",
        "url": "https://www.hitachihyoron.com/jp/pdf/1999/01/1999_01_06.pdf",
        "language": "ja",
        "date": "1999-01",
        "locator": "交通システム · E4系2階建新幹線電車",
        "supports": "E4 aluminium body, eight cars, IGBT three-level PWM main converter and 1997-12 delivery.",
        "checked": "2026-11-07"
      },
      "e5motor": {
        "title": "JR East – Series E5",
        "publisher": "Hitachi Industrial Products",
        "url": "https://www.hitachi-ip.com/products/traction_motors/casestudy/series_e5.html",
        "language": "en",
        "date": null,
        "locator": "Traction motor specifications",
        "supports": "Hitachi-supplied E5 induction motor, rated 300kW, copper rotor, forced ventilation, 431kg and 696 × 512mm. The dimensions and mass refer to one motor.",
        "checked": "2026-11-07"
      },
      "drive2012": {
        "title": "さまざまなニーズに応える鉄道車両駆動用主回路技術",
        "publisher": "日立製作所 · 日立評論",
        "url": "https://www.hitachihyoron.com/jp/pdf/2012/06/2012_06_04.pdf",
        "language": "ja",
        "date": "2012-06",
        "locator": "§3.1 and Figure 3",
        "supports": "Hitachi E5/E6 main-converter design commonality; IGBT three-level converter/inverter architecture. Applies to Hitachi equipment.",
        "checked": "2026-11-07"
      },
      "e7jtrec": {
        "title": "JR東日本 E7系新幹線電車",
        "publisher": "総合車両製作所",
        "url": "https://www.j-trec.co.jp/company/070/03/jtr03_26-31.pdf",
        "language": "ja",
        "date": "2014-12",
        "locator": "Printed pp.26–31; §2.1.1 and Table 1",
        "supports": "E7 original 12-car 10M2T formation, aluminium double skin, 9.1m nose, 300kW forced-air squirrel-cage motors, 25kV supply, three-level PWM, regenerative/electrically commanded air brakes, DT211/TR7010/TR7010A bogies and DS-ATC/RS-ATC.",
        "checked": "2026-11-07",
        "availability": [
          "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.",
          "2026年11月7日の確認では元のPDFリンクが404を返した。書誌情報は保持し、新たに確認した設計上の解説には下段で別途引用する川崎重工の資料を用いる。"
        ]
      },
      "h5launch": {
        "title": "北海道新幹線用車両（H5系）の概要",
        "publisher": "JR北海道",
        "url": "https://www.jrhokkaido.co.jp/press/2014/140416-1.pdf",
        "language": "ja",
        "date": "2014-04-16",
        "locator": "別紙 · 仕様表",
        "supports": "Original H5 ten-car formation, maximum tilt 1.5 degrees, full active suspension, seating pitch. Original capacity is historical.",
        "checked": "2026-11-07"
      },
      "h5guide": {
        "title": "はやぶさ・はやて H5系",
        "publisher": "JR北海道",
        "url": "https://www.jrhokkaido.co.jp/train/shinkansen.html",
        "language": "ja",
        "date": null,
        "locator": "車両概要",
        "supports": "H5 based on E5; ten cars and 320km/h capability. Hokkaido line speeds are qualified separately by operator.",
        "checked": "2026-11-07"
      },
      "west2025": {
        "title": "データで見るJR西日本2025 · 車両",
        "publisher": "JR西日本",
        "url": "https://www.westjr.co.jp/company/info/issue/data/pdf/data2025_15.pdf",
        "language": "ja",
        "date": "2025",
        "locator": "W7系（W編成） vehicle entry",
        "supports": "W7 representative twelve-car formation, 542.1t train mass and 260km/h service speed. Parsed class seat totals are inconsistent and excluded.",
        "checked": "2026-11-07"
      },
      "e8reveal": {
        "title": "JR東日本「E8系」山形新幹線の新型車両公開",
        "publisher": "マイナビニュース",
        "url": "https://news.mynavi.jp/article/20230224-e8/",
        "language": "ja",
        "date": "2023-02-24",
        "locator": "G1 formation and pantograph description",
        "supports": "G1 7-car 5M2T; aluminium body, pantographs on cars 12 and 16; Kawasaki/Hitachi manufacturers.",
        "checked": "2026-11-07"
      },
      "e2guide": {
        "title": "E2系 · JR東日本の列車たち",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/shinkan/e2.html",
        "language": "ja",
        "date": null,
        "locator": "基本情報・車両編成",
        "supports": "Operator series context, operating capability, design features and formation.",
        "checked": "2026-11-07"
      },
      "e3guide": {
        "title": "E3系 · JR東日本の列車たち",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/shinkan/e3.html",
        "language": "ja",
        "date": null,
        "locator": "基本情報・車両編成",
        "supports": "Operator series context, operating capability, design features and formation.",
        "checked": "2026-11-07"
      },
      "e5guide": {
        "title": "E5系 · JR東日本の列車たち",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/shinkan/e5.html",
        "language": "ja",
        "date": null,
        "locator": "基本情報・車両編成",
        "supports": "Operator series context, operating capability, design features and formation.",
        "checked": "2026-11-07"
      },
      "e6guide": {
        "title": "E6系 · JR東日本の列車たち",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/shinkan/e6.html",
        "language": "ja",
        "date": null,
        "locator": "基本情報・車両編成",
        "supports": "Operator series context, operating capability, design features and formation.",
        "checked": "2026-11-07"
      },
      "e7guide": {
        "title": "E7系 · JR東日本の列車たち",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/shinkan/e7.html",
        "language": "ja",
        "date": null,
        "locator": "基本情報・車両編成",
        "supports": "Operator series context, operating capability, design features and formation.",
        "checked": "2026-11-07"
      },
      "e8guide": {
        "title": "E8系 · JR東日本の列車たち",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/shinkan/e8.html",
        "language": "ja",
        "date": null,
        "locator": "基本情報・車両編成",
        "supports": "Operator series context, operating capability, design features and formation.",
        "checked": "2026-11-07"
      }
    }
  },
  "engineering": {
    "record": {
      "scope": {
        "en": "W7 · joint E7/W7 engineering account, 2016",
        "ja": "W7系 · 2016年のE7/W7共同開発車両の技術紹介"
      },
      "facts": [
        {
          "label": {
            "en": "Traction-unit organisation",
            "ja": "ユニット構成"
          },
          "value": {
            "en": "Five units: 3 + 2 + 2 + 2 + 3 cars",
            "ja": "5ユニット：3＋2＋2＋2＋3両"
          },
          "sources": [
            "east:east-hokuriku-2016"
          ],
          "locator": "§1; Figure 1",
          "page": 1
        },
        {
          "label": {
            "en": "Gradient capability",
            "ja": "勾配対応"
          },
          "value": {
            "en": "Traction and braking designed for 30‰ gradients",
            "ja": "30‰勾配に対応した動力・ブレーキ性能"
          },
          "sources": [
            "east:east-hokuriku-2016"
          ],
          "locator": "§2(4)",
          "page": 2
        },
        {
          "label": {
            "en": "Power-frequency compatibility",
            "ja": "対応電源周波数"
          },
          "value": {
            "en": "50 and 60 Hz equipment",
            "ja": "50・60 Hz対応機器"
          },
          "sources": [
            "east:east-hokuriku-2016"
          ],
          "locator": "§2(3)",
          "page": 2
        }
      ],
      "insights": [
        {
          "title": {
            "en": "A mountain-route design",
            "ja": "山岳区間を前提とした設計"
          },
          "text": {
            "en": "The Hokuriku route combines steep gradients with power-frequency changes. Kawasaki treats traction, braking and dual-frequency equipment as linked route requirements.",
            "ja": "北陸新幹線は急勾配と電源周波数の切替が重なる。川崎の技術紹介は、動力・ブレーキ・両周波数対応を線区条件として説明している。"
          },
          "sources": [
            "east:east-hokuriku-2016"
          ],
          "locator": "§2(3)–(4)",
          "page": 2
        }
      ],
      "gaps": [
        "Detailed supplier-specific motor and bogie changes require series-specific records; shared route features are explicitly supported for both E7 and W7."
      ]
    },
    "sources": {
      "east:east-hokuriku-2016": {
        "title": "北陸新幹線用 E7系／W7系新幹線電車",
        "publisher": "川崎重工技報 第177号",
        "url": "https://www.khi.co.jp/rd/magazine/pdf/177/n17709.pdf",
        "date": "2016-05",
        "language": "ja",
        "locator": "pp.30–31; §1 and §2(2)–(5)",
        "checked": "2026-11-07"
      }
    },
    "checked": "2026-11-07"
  },
  "literature": []
}