Talk:15 kV AC railway electrification

message: The existing name gives no hint that the topic is other than a general purpose electric transmission system.  The name should make it clear that this is localized and special purpose.  To most of the world AC by default means 50 or 60 Hz.LeadSongDog 18:30, 29 August 2007 (UTC)
thread_title: Proposed Rename

message: It is actually 16 kV that is used in Sweden and Norway. Bjorn Knutson 18:21, 7 December 2007 (CET).
: The nominal voltage is 15 kV (see for instance http://banportalen.banverket.se/Banportalen/upload/1080/Jarnvagsnatsbeskrivning_T07.pdf ). On Banverket's net the maximum voltage at the point of consumption (the locomotive) is specified as 17.25 kV (15 kV +15%) and the minimum voltage is specified as 13,5 kV (15 kV -10%). To compensate for voltage drop along the catenary, the voltage at the feeder station's terminals are usually 16 kV or slightly higher. Unfortunately, Banverket adds to the confusion by stating 16 kV in many non-technical texts, such as press releases regarding accidents. All of this is for Sweden, I can't say anything about Norway but I would guess they have adapted the same EN-standard for interoperability reasons. JTragardh (talk) 07:54, 30 December 2007 (UTC)
thread_title: Error

message: The technique for this electrification system was first tested in Germany on the Höllentalbahn during the 1930s and 1940s.
Sounds "a bit" questionable to me since the Gotthardbahn was fully electrified using this system in 1922... I think the first tests in Switzerland were run between Seebach and Wettingen around 1918, see also List of stock used by Swiss Federal Railways. --Kabelleger (talk) 22:20, 15 January 2008 (UTC)
replies: text: It seems that this sentence was torn out of the right context with one of the last edits. It seems to belong to the 50 Hz stuff. --Kabelleger (talk) 00:18, 16 January 2008 (UTC)
replies: text: It was a stray paragraph at the bottom which I moved up the page. The whole article still needs redoing - it looks like it started a a babel fish translation of the German article. I'd give it a go but I can't read the German reference materials. Railwayfan2005 (talk) 18:33, 16 January 2008 (UTC)
replies: text: I've done some more copyediting, and removed that very inaccurate sentence over; I have references at my side stating that this system was used in Norway in 1922, so it could not have been developed during the 1940s. Arsenikk (talk) 15:57, 8 June 2008 (UTC)
thread_title: First tested...

message: The frequency change is described as "inversion" which could be misleading because inversion normally means conversion from DC to AC. In the case of solid-state converters, it is technically correct because there would be conversion from AC at 50 Hz to DC, followed by conversion from DC to AC at 16.7 Hz. However, I think a different term should be used. Biscuittin (talk) 00:00, 7 December 2009 (UTC)
replies: text: I have changed "inverter" to "converter". Biscuittin (talk) 09:43, 7 December 2009 (UTC)
thread_title:  Inversion 

message: 16.7Hz system is not suitable for Shinkansen.  —Preceding unsigned comment added by 121.102.47.215 (talk) 07:31, 22 February 2010 (UTC)
thread_title:  Disadvantages 

message: If Buenos Aires-Rosario-Córdoba high-speed railway (planned) use standard gauge, it will use 15kV AC .
121.102.47.215 (talk) 00:57, 13 March 2010 (UTC)
replies: text: Two problems with information like this -- it's speculation about the future, and it's unsourced.Prari (talk) 13:30, 14 March 2010 (UTC)
replies: text: Even a third problem.  It is highly uncommon to use 15kV/16.x Hz for new railroad systems.  All high speed and heavy freight systems that do not have a surrounding network imposing something other than that are going for 25kV/50Hz (or 60Hz), or even in some rare cases 50kV.  Even the countries that do have huge DC-networks have a tendency to use 25kV for there new freight or highspeed lines or even to convert to that system.  A likely information might go away without heavy proof.  That would be, I would be more than willing to trust the information, if it said that Argentina were going for 25kV/50Hz, because that is what is done everywhere, what is sold on the world market as standard equipment etc.  The only reason to go for 15kV/16.xHz would be to buy used rolling stock from Sweden, Norway, Germany, Austria and Switzerland.  Anyway, a surprising information or even one that is hard to believe does need some credible source to create evidence.  For the time being, let's keep it with the information that this project is "on hold", as could be read in some wikipedia article.  I would like to add that using an IP-address (which is perfectly ok, off course!!!) as user name does not make it easier to persuade others about this.--Bk1 168 (talk) 14:06, 21 May 2010 (UTC)
replies: text: 50kV system is never using for high-speed rail. 121.102.47.39 (talk) 02:17, 29 May 2010 (UTC)
replies: text: 50kV is used for some isolated freight lines.  All new high speed lines either use what is the electrification system in the country (15 kV/16.7 Hz in Germany, Sweden, Norway, Switzerland & Austria, 3 kV on older highspeed lines in Italy) or 25 kV AC, like some new high speed lines in Italy.  I would be very surprised if Argentina did not use 25kV AC, but it is off course not clear if the Argentine high speed railroad is coming at all.--Bk1 168 (talk) 07:34, 29 May 2010 (UTC)
thread_title:  Argentina 

message: I am thinking of adding a History section. The 15 KV AC system is a development of the 6.6 KV AC system used in Germany and (with German equipment) in England, see London,_Brighton_and_South_Coast_Railway#Railway_electrification. Biscuittin (talk) 10:26, 26 March 2010 (UTC)
thread_title:  History 

message: Shouldn't we have a redirect from "15 kV AC railroad electrification"?--Bk1 168 (talk) 05:39, 19 May 2010 (UTC)
thread_title:  redirect from "15 kV AC railroad electrification" 

message: During several automated bot runs the following external link was found to be unavailable. Please check if the link is in fact down and fix or remove it in that case!
* http://de.wikipedia.org/wiki/Liste_von_Bahnstromanlagen
** In 15 kV AC railway electrification on 2011-06-01 18:18:13, 404 Not Found
** In 15 kV AC railway electrification on 2011-06-20 05:19:30, 404 Not Found
--JeffGBot (talk) 05:20, 20 June 2011 (UTC)
thread_title:  Dead link 

message: Do we need the lists of substations in this article? I think they just duplicate the lists in List of installations for 15 kV AC railway electrification in Germany, Austria and Switzerland. Roberttherambler (talk) 22:09, 3 September 2017 (UTC)
replies: text: Done it, there's literally no reason for that to be duplicated that way, it only fluffs the page and makes it harder to navigate TuxyQ (talk|contrib) 22:41, 19 January 2022 (UTC)
thread_title:  Duplication 

message: How about calling the article 16 2/3 Hz railway electrification? The oddball frequency is more of a defining feature of this system than the voltage.Nankai (talk) 05:37, 1 June 2020 (UTC)
replies: text: Oddball? It's just 1/3 of the European 50Hz standard. Martin of Sheffield (talk) 09:03, 1 June 2020 (UTC)

text: Every other railway electrification article is named by voltage; I think it would be confusing if this one were different. Mackensen (talk) 12:00, 1 June 2020 (UTC)
thread_title:  Move?