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25 kV AC railway electrification

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353: 240: 1207: 77: 179: 36: 441:, asynchronous traction, and an adjustable number of (motor) poles. The first electrified line for testing was Budapest–Dunakeszi–Alag. The first fully electrified line was Budapest–Győr–Hegyeshalom (part of the Budapest–Vienna line). Although Kandó's solution showed a way for the future, railway operators outside of Hungary showed a lack of interest in the design. 570:
was related to the efficiency of power transmission as a function of voltage and cost, not based on a neat and tidy ratio of the supply voltage. For a given power level, a higher voltage allows for a lower current and usually better efficiency at the greater cost for high-voltage equipment. It was
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overhead line was gradually brought closer to the earthed metalwork of the bridge whilst being subjected to steam from the locomotive's chimney. The distance at which a flashover occurred was measured and this was used as a basis from which new clearances between overhead equipment and structures
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It was possible to use AC motors (and some railways did, with varying success), but they have had less than ideal characteristics for traction purposes. This is because control of speed is difficult without varying the frequency and reliance on voltage to control speed gives a torque at any given
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Since only two phases of the high-voltage supply are used, phase imbalance is corrected by connecting each feeder station to a different combination of phases. To avoid the train pantograph bridging together two feeder stations which may be out-of-phase with each other,
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This system is now part of the European Union's Trans-European railway interoperability standards (1996/48/EC "Interoperability of the Trans-European high-speed rail system" and 2001/16/EC "Interoperability of the Trans-European Conventional rail system").
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kV system. In this system, the current is mainly carried between the overhead line and a feeder transmission line instead of the rail. The overhead line (3) and feeder (5) are on opposite phases so the voltage between them is
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was an optimal point, where a higher voltage would still improve efficiency but not by a significant amount in relation to the higher costs incurred by the need for larger insulators and greater clearance from structures.
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speed that is not ideal. This is why DC series motors were the most common choice for traction purposes until the 1990s, as they can be controlled by voltage, and have an almost ideal torque vs speed characteristic.
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at feeder stations, and at track sectioning cabins located halfway between feeder stations, provides switching to feed the overhead line from adjacent feeder stations if one feeder station loses grid supply.
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The permissible range of voltages allowed are as stated in the above standards and take into account the number of trains drawing current and their distance from the substation.
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to obtain greater power and increase the distance between substations. Such lines are usually isolated from other lines to avoid complications from interrunning. Examples are:
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One of the reasons why it was not introduced earlier was the lack of suitable small and lightweight control and rectification equipment before the development of solid-state
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is needed. Until the early 1950s, mercury-arc rectifiers were difficult to operate even in ideal conditions and were therefore unsuitable for use in railway locomotives.
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as a result of research work that demonstrated that the distance between live and earthed equipment could be reduced from that originally thought to be necessary.
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and related technology. Another reason was the increased clearance distances required where it ran under bridges and in tunnels, which would have required major
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In some cases dedicated single-phase AC power lines were built to substations with single phase AC transformers. Such lines were built to supply the French
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The first successful operational and regular use of a utility frequency system dates back to 1931, tests having run since 1922. It was developed by
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Britain's new railway: Electrification of the London-Midland main lines from Euston to Birmingham, Stoke-on-Trent, Crewe, Liverpool and Manchester
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kV system was then adopted as standard in France, but since substantial amounts of mileage south of Paris had already been electrified at 1.5
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system. This part of Germany was in the French zone of occupation after 1945. As a result of examining the German system in 1951 the
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kV. Periodic autotransformers (9) divert the return current from the neutral rail, step it up, and send it along the feeder line.
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where there was limited clearance under bridges and in tunnels. Rolling stock was dual-voltage with automatic switching between
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This electrification is ideal for railways that cover long distances or carry heavy traffic. After some experimentation before
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The great book of trains : featuring 310 locomotives shown in more than 160 full-colour illustrations and 500 photographs
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The main reason why electrification using utility frequency had not been widely adopted before was the lack of reliability of
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Proceedings of the British Railways Electrification Conference, London 1960 – Railway Electrification at Industrial Frequency
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kV, are established technologies. Some locomotives in Europe are capable of using four different voltage standards.
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AC has become an international standard. There are two main standards that define the voltages of the system:
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is connected across two of the three phases of the high-voltage supply and lowers the voltage to
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Traxx MS (multi-system) for operation on both AC (15 and 25 kV) and DC (1·5 and 3 kV) networks
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kV AC electrification is closely connected with that of successfully using utility frequency.
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High-speed lines in France, Spain, Italy, the Netherlands, Belgium and Turkey operate under
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kV, while the voltage between the overhead line (3) and the running rails (4) remains at 25
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IEE Colloquium on 50kV Autotransformer Traction Supply Systems - the French Experience
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Hz AC railway electrification in the United Kingdom was planned to use sections at
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BS EN 50163:2004+A1:2007 Railway Applications. Supply voltages of traction systems
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50163:2004+A1:2007 – "Railway applications. Supply voltages of traction systems"
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that could fit on the train. This in turn related to the requirement to use
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The remainder of the French lines use 1 Ă— 25 kV booster-transformer system.
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Systems based on this standard but with some variations have been used.
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In the 1990s, high-speed trains began to use lighter, lower-maintenance
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The Age of the Electric Train – Electric Trains in Britain since 1883
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Comparative Study of the Electrification Systems 1Ă—25 kV and 2Ă—25 kV
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Hz utility grid yet does not require the larger wire clearance for
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60850 – "Railway Applications. Supply voltages of traction systems"
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Tom McGavin (Autumn 1988). "North Island Main Trunk Electrified".
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AC electrification is usually taken directly from the three-phase
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The first railway to use this system was completed in 1936 by the
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kV to reduce energy losses. It should not be confused with the 50
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Hz), which simplifies traction substations. The development of 25
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Machefert-Tassin, Yves; Nouvion, Fernand; Woimant, Jean (1980).
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or require dual-voltage capability for trains also operating on
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DC (via phase-controlled rectifier with thyristor) to a maximum
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The research was done using a steam engine beneath a bridge at
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Standard current and voltage settings for most high-speed rail
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from Matawan, NJ to Long Branch, NJ (1988–2002; changed to 25
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are provided at feeder stations and track sectioning cabins.
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Trains that can operate on more than one voltage, such as 3
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runs in France the voltage was temporarily boosted, to 29.5
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from Pelham, NY to New Haven, CT (Since 1985; previously 11
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Keenor, Garry. Overhead line electrification for railways.
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Some lines in the United States have been electrified at
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four Eurostar trains broke down inside the Channel Tunnel
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This system was initially deployed on France's then new
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List of railway electrification systems: 25 kV AC, 60 Hz
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in the United Kingdom is electrified using 25 kV 50 Hz
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SVCs for load balancing and trackside voltage control
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In Japan, this is used on existing railway lines in
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At the transmission substation, a step-down 192:Please help improve this article, possibly by 2245: 1325: 1302:and some of the Finnish and Hungarian lines. 452:between Freiburg and Neustadt installing a 20 481:in southern France, initially at the same 20 383:, it came into widespread use in the 1950s. 2259: 1911: 820:Montreal Metropolitan transportation Agency 409:systems have introduced or are introducing 64:Learn how and when to remove these messages 2252: 2238: 1922:New Zealand Railway and Locomotive Society 1750:La traction Ă©lectrique en France 1900–2005 951: 2150:Histoire de la Traction Electrique, vol.1 1178:which was also an isolated coal railway ( 806:is used for the railway electrification. 337:. It is usually supplied at the standard 227:Learn how and when to remove this message 161:Learn how and when to remove this message 1892: 1205: 972:, of which Hokuriku and Kyushu are at 60 947:, to be completed in the September 2024. 935:and select isolated short lines. In the 531:uses a three-level converter to convert 351: 238: 2210: 2206:. London: British Railways Board. 1960. 2109: 2090: 1672:List of railway electrification systems 1596:Other voltages on 50 Hz electrification 1274:in 1981, and has gone on to be used by 14: 2579: 2128: 1944:"Ministry of Railways (Railway Board)" 982: 2233: 920:on newer electrified portions of the 679: 405:Railways using older, lower-capacity 2183: 2166: 1167:which was an isolated coal railway ( 1045:Amtrak's 25 Hz traction power system 798:is the normal grid power frequency, 783: 549:variable voltage, variable frequency 196:the article and/or by introducing a 172: 99:adding citations to reliable sources 70: 29: 1639:Multi-system locomotives and trains 1176:Black Mesa and Lake Powell Railroad 1049:SEPTA's 25 Hz traction power system 421:DC for their new high-speed lines. 333:are used worldwide, especially for 24: 2081: 1482:rail electrification in Queensland 1372:Commonwealth of Independent States 1305: 1286:, Italian High Speed Railways, UK 642: 398:to live parts. Where pre-existing 394:in order to provide the increased 110:"25 kV AC railway electrification" 25: 2603: 2213:Electrifying the East Coast Route 1836: 1440:list of railway lines in Portugal 1038: 829:on the Tokaido, Sanyo and Kyushu 45:This article has multiple issues. 2587:25 kV AC railway electrification 1667:15 kV AC railway electrification 1518:Auckland railway electrification 1362:: part of the suburban network ( 1202:2 Ă— 25 kV autotransformer system 1003:allows direct supply from the 60 177: 75: 34: 2561:Railway electrification systems 2049: 2035: 2021: 1993: 1984: 1960: 1936: 1886: 1466:: entire suburban network, see 1272:Paris-Lyon High speed rail line 594: 319:Railway electrification systems 244:Railway electrification systems 200:, or discuss this issue on the 86:needs additional citations for 53:or discuss these issues on the 2029:"The Test Tracks: an Overview" 1972:www.theconstructionindex.co.uk 1861: 1824: 1801: 1783: 1762: 1742: 1722: 1533:rail transport in South Africa 1427:between Ourense and Santiago ( 647:Railway electrification using 13: 1: 2061:Railway Gazette International 1682: 1091: 903:Taiwan Railway Administration 775: 473:electrified the line between 2566:Tram electrification systems 2381:Electro-diesel multiple unit 1914:New Zealand Railway Observer 905:'s electrified lines (using 448:who electrified part of the 7: 1660: 1611:Chemin de fer du Montenvers 1451:25 kV on narrow gauge lines 1135: 1116:sections were converted to 943:is currently undergoing an 10: 2608: 2336:Conduit current collection 2186:Electric Euston to Glasgow 2093:East Coast Electrification 1771:, ABB Power Technologies. 1642: 1499:rail transport in Malaysia 1326:25 kV on broad gauge lines 1244:split-phase electric power 1042: 787: 424: 2553: 2425: 2399: 2376:Electro-diesel locomotive 2356:Railway electric traction 2346: 2326:Ground-level power supply 2298: 2267: 1752:. Paris: La Vie du Rail. 1585:rail transport in Tunisia 1387:rail transport in Finland 1223:7. Locomotive transformer 707: 702: 699: 694: 689: 684: 527:AC induction motors. The 2215:. Patrick Stephens Ltd. 1551:rail transport in Taiwan 1374:: parts of the network ( 1347:5 ft 6 in 1246:system which supplies 25 911:3 ft 6 in 539:AC (via transformer) to 2592:Electric rail transport 2306:Railway electrification 2261:Railway electrification 2211:Semmens, Peter (1991). 2091:Boocock, Colin (1991). 1728:Haydock, David (1991). 1514:North Island Main Trunk 1402:rail transport in India 1322:kV at different times. 1058:North Jersey Coast Line 952:20 kV AC at 50 or 60 Hz 945:electrification project 2407:Traction power network 2371:Electric multiple unit 2110:Gillham, J.C. (1988). 1869:"GF6C #6001 PRESERVED" 1677:Rotary phase converter 1312:TGV world speed record 1231: 1015:lines. Examples are: 937:San Francisco Bay Area 877:Taiwan High Speed Rail 585:the wrong type of snow 557:pulse-width modulation 547:three-phase AC (via a 506:Mercury arc rectifiers 485:kV but converted to 25 364: 315: 2417:Traction powerstation 2171:. London: Ian Allan. 2129:Glover, John (2003). 1948:indianrailways.gov.in 1893:Courtois, C. (1993). 1748:Cuynet, Jean (2005). 1211:1. Supply transformer 1209: 1165:Deseret Power Railway 433:in Hungary, who used 355: 251: Non-electrified 242: 1875:on February 18, 2009 1795:May 4, 2009, at the 1292:West Coast Main Line 1276:New Zealand Railways 1055:New Jersey Transit's 1020:Metro-North Railroad 561:regenerative braking 358:East Coast Main Line 95:improve this article 2412:Traction substation 2366:Electric locomotive 2331:Stud contact system 2184:Nock, O.S. (1974). 2167:Nock, O.S. (1965). 1645:Multi-system (rail) 983:12.5 kV AC at 60 Hz 816:Deux-Montagnes line 794:In countries where 605:transmission system 599:Electric power for 535:single-phase AC to 446:Deutsche Reichsbahn 341:(typically 50 or 60 323:alternating current 198:disambiguation page 2391:Rubber-tyred metro 2268:Current collectors 2152:. La Vie du Rail. 2006:(Report). Madrid: 1777:2007-02-06 at the 1607:Mont Blanc Tramway 1570:SRT Light Red line 1425:Madrid-Galicia HSL 1232: 1227:9. Autotransformer 1156:iron ore railway ( 991:or converted from 926:New Jersey Transit 922:Northeast Corridor 489:kV in 1953. The 25 479:La Roche-sur-Foron 365: 316: 2574: 2573: 1738:978-0-7110-1980-5 1566:SRT Dark Red line 1468:railways in Perth 1085:Pennsylvania Rail 933:RTD Commuter Rail 784:25 kV AC at 60 Hz 769: 768: 392:civil engineering 339:utility frequency 237: 236: 229: 219: 218: 171: 170: 163: 145: 68: 16:(Redirected from 2599: 2254: 2247: 2240: 2231: 2230: 2226: 2207: 2199: 2180: 2163: 2144: 2131:Eastern Electric 2125: 2106: 2075: 2074: 2069: 2068: 2053: 2047: 2046: 2039: 2033: 2032: 2025: 2019: 2018: 2016: 2015: 2005: 1997: 1991: 1988: 1982: 1981: 1979: 1978: 1964: 1958: 1957: 1955: 1954: 1940: 1934: 1933: 1909: 1903: 1902: 1890: 1884: 1883: 1881: 1880: 1865: 1859: 1858: 1856: 1854: 1848: 1840: 1834: 1828: 1822: 1821: 1818:10.3403/30103554 1805: 1799: 1787: 1781: 1766: 1760: 1746: 1740: 1726: 1720: 1719: 1693: 1656: 1652: 1634: 1616: 1590: 1575: 1556: 1541: 1538: 1523: 1504: 1487: 1473: 1445: 1430: 1411: 1392: 1377: 1365: 1348: 1343: 1321: 1317: 1284:Russian Railways 1266: 1262: 1257: 1253: 1249: 1237: 1229:10. Running rail 1225:8. Overhead line 1215:3. Overhead line 1196: 1181: 1170: 1159: 1147: 1143: 1130: 1127:. A section of 1119: 1115: 1111: 1107: 1103: 1099: 1067: 1063: 1033: 1029: 1014: 1010: 1006: 1002: 998: 994: 990: 975: 928:commuter lines, 912: 908: 900: 898: 897: 893: 890: 882: 856: 854: 853: 849: 846: 837: 805: 801: 797: 765: 763: 757: 755: 749: 747: 741: 739: 733: 731: 724: 720: 718: 677: 676: 669: 662: 654: 650: 626:neutral sections 614: 602: 574: 569: 546: 542: 538: 534: 510:DC series motors 496: 492: 488: 484: 461: 455: 440: 436: 420: 416: 412: 348: 344: 332: 311: 302: 296: 290: 286: 280: 276: 270: 266: 260: 256: 250: 246:used in Europe: 232: 225: 214: 211: 205: 181: 180: 173: 166: 159: 155: 152: 146: 144: 103: 79: 71: 60: 38: 37: 30: 21: 2607: 2606: 2602: 2601: 2600: 2598: 2597: 2596: 2577: 2576: 2575: 2570: 2549: 2421: 2395: 2342: 2294: 2263: 2258: 2223: 2202: 2196: 2160: 2141: 2122: 2103: 2084: 2082:Further reading 2079: 2078: 2066: 2064: 2055: 2054: 2050: 2045:. 4 April 2007. 2041: 2040: 2036: 2027: 2026: 2022: 2013: 2011: 2003: 1999: 1998: 1994: 1989: 1985: 1976: 1974: 1966: 1965: 1961: 1952: 1950: 1942: 1941: 1937: 1910: 1906: 1891: 1887: 1878: 1876: 1867: 1866: 1862: 1852: 1850: 1846: 1842: 1841: 1837: 1829: 1825: 1806: 1802: 1797:Wayback Machine 1788: 1784: 1779:Wayback Machine 1767: 1763: 1747: 1743: 1727: 1723: 1708: 1694: 1690: 1685: 1663: 1654: 1650: 1647: 1641: 1632: 1614: 1598: 1588: 1573: 1554: 1539: 1536: 1521: 1502: 1485: 1471: 1453: 1443: 1428: 1409: 1390: 1375: 1363: 1346: 1341: 1328: 1319: 1315: 1308: 1306:Boosted voltage 1280:Indian Railways 1264: 1260: 1255: 1251: 1247: 1240:autotransformer 1235: 1230: 1228: 1226: 1224: 1222: 1220: 1218: 1217:4. Running rail 1216: 1214: 1213:2. Power supply 1212: 1204: 1194: 1189:Subdivision of 1185:The now closed 1179: 1174:The now closed 1168: 1157: 1154:Sishen–Saldanha 1145: 1141: 1138: 1128: 1117: 1113: 1109: 1105: 1101: 1097: 1094: 1065: 1061: 1051: 1043:Main articles: 1041: 1031: 1027: 1012: 1008: 1004: 1000: 996: 992: 988: 985: 973: 962:Hokuriku Region 954: 910: 906: 895: 891: 888: 886: 885:4 ft  884: 880: 851: 847: 844: 842: 841:4 ft  840: 835: 803: 799: 795: 792: 786: 778: 761: 760: 753: 752: 745: 744: 737: 736: 729: 728: 722: 716: 715: 709: 704: 696: 691: 681: 680:Electrification 667: 660: 652: 648: 645: 643:Standardisation 612: 600: 597: 572: 567: 551:inverter using 544: 540: 536: 532: 529:N700 Shinkansen 494: 490: 486: 482: 459: 453: 438: 434: 427: 418: 414: 410: 346: 342: 335:high-speed rail 326: 309: 305: 300: 294: 292: 288: 284: 282: 278: 274: 272: 268: 264: 262: 258: 254: 252: 248: 233: 222: 221: 220: 215: 209: 206: 191: 182: 178: 167: 156: 150: 147: 104: 102: 92: 80: 39: 35: 28: 23: 22: 15: 12: 11: 5: 2605: 2595: 2594: 2589: 2572: 2571: 2569: 2568: 2563: 2557: 2555: 2551: 2550: 2548: 2547: 2542: 2540:United Kingdom 2537: 2532: 2527: 2522: 2517: 2512: 2507: 2502: 2501: 2500: 2490: 2485: 2480: 2475: 2470: 2465: 2460: 2455: 2450: 2445: 2440: 2435: 2429: 2427: 2423: 2422: 2420: 2419: 2414: 2409: 2403: 2401: 2397: 2396: 2394: 2393: 2388: 2383: 2378: 2373: 2368: 2363: 2358: 2352: 2350: 2344: 2343: 2341: 2340: 2339: 2338: 2333: 2323: 2318: 2313: 2308: 2302: 2300: 2299:Power delivery 2296: 2295: 2293: 2292: 2287: 2282: 2277: 2271: 2269: 2265: 2264: 2257: 2256: 2249: 2242: 2234: 2228: 2227: 2221: 2208: 2200: 2194: 2181: 2164: 2158: 2145: 2139: 2126: 2120: 2107: 2101: 2088: 2083: 2080: 2077: 2076: 2048: 2034: 2020: 1992: 1983: 1959: 1935: 1904: 1885: 1860: 1835: 1823: 1800: 1782: 1761: 1741: 1721: 1706: 1687: 1686: 1684: 1681: 1680: 1679: 1674: 1669: 1662: 1659: 1643:Main article: 1640: 1637: 1636: 1635: 1617: 1597: 1594: 1593: 1592: 1577: 1558: 1543: 1525: 1506: 1491: 1490: 1489: 1475: 1452: 1449: 1448: 1447: 1432: 1413: 1394: 1379: 1369: 1368: 1367: 1350: 1327: 1324: 1307: 1304: 1290:, most of the 1219:5. Feeder line 1210: 1203: 1200: 1199: 1198: 1183: 1172: 1161: 1144:is doubled to 1137: 1134: 1132:were derived. 1093: 1090: 1089: 1088: 1074: 1069: 1040: 1039:12 kV at 25 Hz 1037: 1036: 1035: 1024:New Haven Line 984: 981: 953: 950: 949: 948: 914: 901:gauge) and on 869: 858: 823: 785: 782: 777: 774: 767: 766: 758: 750: 742: 734: 726: 712: 711: 710:non-permanent 706: 701: 698: 693: 692:non-permanent 687: 686: 683: 672: 671: 664: 644: 641: 596: 593: 581:short circuits 566:The choice of 426: 423: 413:AC instead of 407:direct current 400:loading gauges 362:overhead lines 293: 283: 273: 263: 253: 247: 235: 234: 217: 216: 210:September 2022 185: 183: 176: 169: 168: 83: 81: 74: 69: 43: 42: 40: 33: 26: 9: 6: 4: 3: 2: 2604: 2593: 2590: 2588: 2585: 2584: 2582: 2567: 2564: 2562: 2559: 2558: 2556: 2552: 2546: 2545:United States 2543: 2541: 2538: 2536: 2533: 2531: 2528: 2526: 2523: 2521: 2518: 2516: 2513: 2511: 2508: 2506: 2503: 2499: 2496: 2495: 2494: 2491: 2489: 2486: 2484: 2481: 2479: 2476: 2474: 2471: 2469: 2466: 2464: 2461: 2459: 2456: 2454: 2451: 2449: 2446: 2444: 2441: 2439: 2436: 2434: 2431: 2430: 2428: 2424: 2418: 2415: 2413: 2410: 2408: 2405: 2404: 2402: 2400:Power network 2398: 2392: 2389: 2387: 2384: 2382: 2379: 2377: 2374: 2372: 2369: 2367: 2364: 2362: 2359: 2357: 2354: 2353: 2351: 2349: 2348:Rolling stock 2345: 2337: 2334: 2332: 2329: 2328: 2327: 2324: 2322: 2319: 2317: 2314: 2312: 2311:Overhead line 2309: 2307: 2304: 2303: 2301: 2297: 2291: 2288: 2286: 2283: 2281: 2278: 2276: 2275:Bow collector 2273: 2272: 2270: 2266: 2262: 2255: 2250: 2248: 2243: 2241: 2236: 2235: 2232: 2224: 2222:0-85059-929-6 2218: 2214: 2209: 2205: 2201: 2197: 2195:0-7110-0530-3 2191: 2188:. Ian Allan. 2187: 2182: 2178: 2174: 2170: 2165: 2161: 2159:2-902808-05-4 2155: 2151: 2146: 2142: 2140:0-7110-2934-2 2136: 2133:. Ian Allan. 2132: 2127: 2123: 2121:0-7110-1392-6 2117: 2114:. Ian Allan. 2113: 2108: 2104: 2102:0-7110-1979-7 2098: 2095:. Ian Allan. 2094: 2089: 2086: 2085: 2073: 2062: 2058: 2052: 2044: 2038: 2030: 2024: 2009: 2002: 1996: 1987: 1973: 1969: 1963: 1949: 1945: 1939: 1931: 1927: 1923: 1919: 1915: 1908: 1900: 1896: 1889: 1874: 1870: 1864: 1845: 1839: 1832: 1827: 1819: 1815: 1811: 1804: 1798: 1794: 1791: 1786: 1780: 1776: 1773: 1770: 1765: 1759: 1758:2-915034-38-9 1755: 1751: 1745: 1739: 1735: 1731: 1725: 1717: 1713: 1709: 1707:0-86101-919-9 1703: 1699: 1692: 1688: 1678: 1675: 1673: 1670: 1668: 1665: 1664: 1658: 1646: 1630: 1629:Nord-SĂĽd-Bahn 1626: 1622: 1618: 1612: 1608: 1604: 1600: 1599: 1586: 1582: 1578: 1571: 1567: 1563: 1559: 1552: 1548: 1544: 1534: 1530: 1526: 1519: 1515: 1511: 1507: 1500: 1496: 1492: 1483: 1479: 1476: 1469: 1465: 1462: 1461: 1459: 1455: 1454: 1441: 1437: 1433: 1426: 1422: 1421:Atlantic Axis 1418: 1414: 1407: 1403: 1399: 1395: 1388: 1384: 1380: 1373: 1370: 1361: 1358: 1357: 1355: 1351: 1344: 1342:1,676 mm 1338: 1334: 1330: 1329: 1323: 1313: 1303: 1301: 1297: 1293: 1289: 1285: 1281: 1277: 1273: 1268: 1245: 1241: 1221:6. Pantograph 1208: 1192: 1188: 1187:Tumbler Ridge 1184: 1177: 1173: 1166: 1162: 1155: 1151: 1150: 1149: 1140:Occasionally 1133: 1126: 1121: 1086: 1082: 1078: 1075: 1073: 1070: 1059: 1056: 1053: 1052: 1050: 1046: 1025: 1021: 1018: 1017: 1016: 997:12.5 kV 60 Hz 989:12.5 kV 60 Hz 980: 978: 971: 967: 963: 959: 958:Tohoku Region 946: 942: 938: 934: 931: 927: 923: 919: 918:United States 915: 907:1,067 mm 904: 881:1,435 mm 878: 874: 870: 867: 863: 859: 838: 836:1,435 mm 833:lines (using 832: 828: 824: 821: 817: 813: 809: 808: 807: 791: 781: 773: 759: 751: 743: 735: 727: 714: 713: 688: 678: 675: 665: 658: 657: 656: 640: 638: 633: 631: 627: 621: 618: 610: 606: 592: 590: 586: 582: 577: 564: 562: 558: 554: 550: 530: 526: 521: 517: 515: 511: 507: 502: 500: 480: 476: 475:Aix-les-Bains 472: 468: 465: 458: 451: 450:Höllentalbahn 447: 442: 432: 422: 408: 403: 401: 397: 393: 389: 384: 382: 378: 374: 370: 363: 359: 354: 350: 340: 336: 330: 324: 320: 313: 304: 245: 241: 231: 228: 213: 203: 199: 195: 189: 186:This article 184: 175: 174: 165: 162: 154: 143: 140: 136: 133: 129: 126: 122: 119: 115: 112: â€“  111: 107: 106:Find sources: 100: 96: 90: 89: 84:This article 82: 78: 73: 72: 67: 65: 58: 57: 52: 51: 46: 41: 32: 31: 19: 2386:Multi-system 2290:Contact shoe 2285:Trolley pole 2212: 2203: 2185: 2168: 2149: 2130: 2111: 2092: 2071: 2065:. Retrieved 2063:. 2008-01-07 2051: 2037: 2023: 2012:. Retrieved 1995: 1986: 1975:. Retrieved 1971: 1962: 1951:. Retrieved 1947: 1938: 1917: 1913: 1907: 1898: 1888: 1877:. Retrieved 1873:the original 1863: 1851:. Retrieved 1838: 1826: 1809: 1803: 1785: 1768: 1764: 1749: 1744: 1729: 1724: 1697: 1691: 1648: 1529:South Africa 1309: 1288:High Speed 1 1269: 1242:system is a 1233: 1139: 1122: 1095: 1081:Reading Rail 986: 955: 879:line (using 793: 779: 770: 673: 646: 634: 622: 598: 595:Distribution 578: 565: 522: 518: 503: 443: 431:Kálmán KandĂł 428: 404: 385: 377:Black Forest 369:World War II 366: 317: 307: 298: 223: 207: 187: 157: 148: 138: 131: 124: 117: 105: 93:Please help 88:verification 85: 61: 54: 48: 47:Please help 44: 2525:Switzerland 2515:Former USSR 2488:New Zealand 2321:Fourth rail 2010:. June 2011 1625:Hambachbahn 1510:New Zealand 1013:11 kV 25 Hz 1009:25 kV 60 Hz 993:11 kV 25 Hz 862:South Korea 609:transformer 571:found that 525:three-phase 375:and in the 2581:Categories 2426:By country 2316:Third rail 2280:Pantograph 2067:2019-09-27 2014:2017-03-30 1977:2023-07-05 1953:2023-07-05 1901:: 1/1–1/4. 1879:2011-01-09 1853:8 November 1683:References 1478:Queensland 1234:The 2 Ă— 25 1102:6.25 kV AC 1092:6.25 kV AC 1079:– Both ex- 999:. Use of 831:Shinkansen 788:See also: 776:Variations 705:permanent 697:permanent 617:Switchgear 388:rectifiers 121:newspapers 50:improve it 2478:Lithuania 2433:Australia 2361:Power car 1930:0028-8624 1831:IEC 60850 1790:TGV power 1653:kV and 25 1458:Australia 1354:Australia 1337:Roca Line 1333:Argentina 1318:kV and 31 1296:Crossrail 579:To avoid 514:rectifier 396:clearance 329:kilovolts 267: 1.5 257: 750 202:talk page 194:splitting 151:July 2009 56:talk page 2498:timeline 2483:Malaysia 2177:59003738 1793:Archived 1775:Archived 1716:60209873 1661:See also 1562:Thailand 1535:(25 and 1495:Malaysia 1436:Portugal 1423:and the 1360:Adelaide 1278:in 1988, 1136:50 kV AC 1118:25 kV AC 1096:Early 50 966:Hokkaido 941:Caltrain 899: in 868:network. 855: in 700:Nominal 685:Voltage 325:(AC) at 287: 15 18:25 kV AC 2535:Ukraine 2453:Germany 2443:Estonia 2438:Austria 1621:Germany 1581:Tunisia 1383:Finland 1349:gauge). 1339:(using 1335:on the 1191:BC Rail 1114:6.25 kV 1112:. The 1110:6.25 kV 1083:and ex- 916:In the 913:gauge). 894:⁄ 875:on the 864:on the 857:gauge). 850:⁄ 818:of the 814:on the 682:system 545:2,300 V 537:1,520 V 425:History 381:Germany 373:Hungary 277: 3 135:scholar 2530:Turkey 2520:Sweden 2510:Russia 2505:Poland 2493:Norway 2473:Latvia 2448:France 2219:  2192:  2175:  2156:  2137:  2118:  2099:  1928:  1924:: 49. 1756:  1736:  1714:  1704:  1655:  1651:  1633:6.6 kV 1603:France 1583:: see 1564:: see 1549:: see 1547:Taiwan 1531:: see 1512:: see 1497:: see 1480:: see 1438:: see 1419:: the 1400:: see 1385:: see 1320:  1316:  1300:Amtrak 1265:  1261:  1256:  1252:  1248:  1236:  1098:  1087:sides. 1072:Amtrak 1066:  1062:  1032:  1028:  1005:  974:  970:Kyushu 930:Denver 873:Taiwan 866:Korail 812:Canada 723:  668:  661:  495:  491:  487:  483:  460:  454:  437:AC at 419:1.5 kV 347:  343:  321:using 310:  301:  297:  295:  289:  285:  279:  275:  269:  265:  259:  255:  249:  137:  130:  123:  116:  108:  2554:Lists 2468:Japan 2458:India 2008:Ineco 2004:(PDF) 1920:(1). 1847:(PDF) 1615:11 kV 1589:50 Hz 1574:50 Hz 1555:60 Hz 1540:50 Hz 1537:50 kV 1522:50 Hz 1503:50 Hz 1486:50 Hz 1472:50 Hz 1464:Perth 1444:50 Hz 1429:50 Hz 1417:Spain 1410:50 Hz 1398:India 1391:50 Hz 1376:50 Hz 1364:50 Hz 1195:60 Hz 1180:60 Hz 1169:60 Hz 1158:50 Hz 1146:50 kV 1142:25 kV 1129:25 kV 1125:Crewe 1106:25 kV 1077:SEPTA 1064:kV 60 1030:kV 25 1001:60 Hz 827:Japan 804:60 Hz 800:25 kV 796:60 Hz 653:50 Hz 649:25 kV 613:25 kV 601:25 kV 573:25 kV 568:25 kV 555:with 553:IGBTs 533:25 kV 439:50 Hz 435:16 kV 411:25 kV 303:kV AC 291:kV AC 281:kV DC 271:kV DC 142:JSTOR 128:books 2463:Iran 2217:ISBN 2190:ISBN 2173:OCLC 2154:ISBN 2135:ISBN 2116:ISBN 2097:ISBN 1926:ISSN 1855:2016 1754:ISBN 1734:ISBN 1730:SNCF 1712:OCLC 1702:ISBN 1627:and 1609:and 1568:and 1516:and 1404:and 1310:For 1294:and 1163:The 1152:The 1108:and 1068:Hz). 1047:and 1034:Hz). 968:and 754:27.5 730:17.5 708:Max. 703:Max. 695:Min. 690:Min. 630:SVCs 541:3 kV 477:and 471:SNCF 415:3 kV 356:The 331:(kV) 261:V DC 114:news 1814:doi 1619:In 1601:In 1579:In 1560:In 1545:In 1527:In 1508:In 1493:In 1456:In 1434:In 1415:In 1396:In 1381:In 1352:In 1345:or 1331:In 1238:kV 1022:'s 995:to 909:or 883:or 871:In 860:In 839:or 825:In 810:In 802:at 725:Hz 666:IEC 637:TGV 497:kV 462:50 417:DC/ 379:in 371:in 327:25 97:by 2583:: 2070:. 2059:. 1970:. 1946:. 1918:45 1916:. 1897:. 1812:. 1710:. 1631:: 1623:, 1613:: 1605:, 1591:). 1576:). 1557:). 1542:). 1524:). 1505:). 1488:). 1474:). 1460:: 1446:). 1431:). 1412:). 1393:). 1378:). 1366:). 1356:: 1282:, 1259:50 1197:). 1182:). 1171:). 1160:). 979:. 977:Hz 964:, 960:, 939:, 764:kV 762:29 756:kV 748:kV 746:25 740:kV 738:19 732:kV 721:50 719:kV 717:25 659:EN 651:, 639:. 591:. 563:. 499:DC 467:AC 464:Hz 457:kV 312:kV 308:25 299:25 59:. 2253:e 2246:t 2239:v 2225:. 2198:. 2179:. 2162:. 2143:. 2124:. 2105:. 2031:. 2017:. 1980:. 1956:. 1932:. 1882:. 1857:. 1820:. 1816:: 1718:. 1587:( 1572:( 1553:( 1520:( 1501:( 1484:( 1470:( 1442:( 1408:( 1389:( 1193:( 896:2 892:1 889:+ 887:8 852:2 848:1 845:+ 843:8 822:. 230:) 224:( 212:) 208:( 204:. 190:. 164:) 158:( 153:) 149:( 139:· 132:· 125:· 118:· 91:. 66:) 62:( 20:)

Index

25 kV AC
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verification
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"25 kV AC railway electrification"
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Railway electrification systems
Railway electrification systems
alternating current
kilovolts
high-speed rail
utility frequency

East Coast Main Line
overhead lines
World War II

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