Talk:HSR-350x

Any Comments? (feed backs)

 * Please have a look at WP:MOS, WP:LEAD and WP:BETTER. Also, personal comments and signatures go on the talk page, not on the actual article page.  Also, have a look at WP:CITE and WP:RS; all statements added to Wiki should be sourced.  Good start !  Sandy (Talk) 16:56, 1 December 2006 (UTC)

Ääääh... What train reached 352,4 km/h? According to my knowledge it was the KTX, not the HSR-350x (of which I heard the first time today). —Preceding unsigned comment added by Der fast kopflose Nick (talk • contribs) 01:24, 13 January 2008 (UTC)

Who Contributed to this Article?
(please record your name and date if you contributed to this article.) --Kingj123 21:35, 1 December 2006 (UTC)
 * This information is found in the article history. Sandy (Talk) 23:50, 3 December 2006 (UTC)

Move to HSR-350x
Isn't that the official name?

Also, search results for "Korean G7" show


 * 1 on the 1st Google pg
 * 1 on the 2nd Google pg
 * 0 on the 3rd Google pg
 * with 775 total pages and 795,000 similar pages

while search results for "HSR-350x" show
 * 6 on 1st Google pg
 * 10 on 2nd Google pg
 * 10 on the 3rd Google pg
 * with 162 total pages and 575 similar pages.

(69.245.43.115 20:10, 23 December 2006 (UTC))


 * Originally, the article was named HSR-350x.--Kingj123 08:39, 3 January 2007 (UTC)

Reply to Kingj123
Requested by Kingj123, on his talk page, I wrote the reason why KRRI's claim as "Korea is the fourth nation in the world to develop high-speed trains independently" is dubious. I guess I can repeat the reasoning (as well as my mistakes) here for the benefit of other editors.

If "High-speed rail" means the railway runs above 200 km/h, then:
 * For Japan, France, and Germany, I don't think you disagree with me.
 * United Kingdom: InterCity 125, one of their High Speed Trains, debuted in 1975. Its maximum speed is 125 mph, or 200 km/h.
 * Italy: ETR 450 debuted in 1988. Its maximum speed is 250 km/h.
 * Spain: In 1966, Talgo III ran at 200 km/h.
 * Sweden: X 2000 debuted in 1990. Its maximum speed 200 km/h.
 * Norway: This one was my mistake. Although BM71 debuted in 1998, it's made by ADtranz, German company.
 * Switzerland: This one is not correct either. ICN debuted in 2000 but it's a joint development between SBB-CFF-FFS, ADtranz and Alstom. Again, my mistake.
 * China: "中華之星列車", or China Star, is developed independently by Chinese, unlike other Chinese high-speeds such as Shanghai Transrapid (from Germany) or 新时速 (from Sweden). It's still in an experimental stage, but so is Korean G-7. It recorded 321.5 km/h in 2003.
 * And finally, South Korea developed Korean G-7. Its maximum speed 350 km/h was recorded in 2004.

So now, I have to say "there are 8 countries that have independently developed high-speed trains before 2004", rather than "10".

If "High-speed rail" means the railway runs above 300 km/h, then:
 * Again, for Japan, France, and Germany, I don't think you disagree with me.
 * Spain:Talgo 350 ran at 300 km/h in 1994.
 * Italy: ETR 500 debuted in 1993. Its maximum speed is 300 km/h.
 * China: As I "proved" above, China Star recorded 321.5 km/h in 2003.
 * And Korean G-7 recorded 350 km/h was recorded in 2004.

I don't have a big probrem with the current article, although it still is incorrect for ignoring China. Kzaral 11:26, 3 January 2007 (UTC)


 * In the article, there is a section dedicated to explaining this controversial matter. At least, that's what I remember. (Wikimachine 21:44, 3 January 2007 (UTC))
 * I don't think this is worth dwelling on particularily - clearly Korea wants to blow its own trumpet as regards membership of the "High speed club" (and rightly so), however an encyclopedia shouldn't repeat ad-nauseum (spelling?) the claims on corporate websites etc.. The topic can be covered briefly but without getting involved in potentially contentious number rankings. At some point I will delete or truncate the section to what is relevent.Shortfatlad (talk) 01:17, 6 December 2009 (UTC)

Fair use rationale for Image:HSR.JPG
Image:HSR.JPG is being used on this article. I notice the image page specifies that the image is being used under fair use but there is no explanation or rationale as to why its use in this Wikipedia article constitutes fair use. In addition to the boilerplate fair use template, you must also write out on the image description page a specific explanation or rationale for why using this image in each article is consistent with fair use.

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BetacommandBot 05:37, 1 October 2007 (UTC)

The "Criticisms"
I do not like this section. It sounds dangerously close to technological hyping and 'tech fanboyism'. None of it is cited, and it basically only had one point on that the train is locomotive-based rather than an EMU and is therefore somehow inferior/old-hat/second-rate. I've rewritten it to be more nuetral, but as a wikipeida page we should be recording OFFICAL criticisms of the train, not uncited opinions of no-name detractors. As far as I am aware, there has been no formal flak on the 'locomotive instead of EMU' system and it has all been cooked up by an overeager wiki writer. I may be wrong, but it should be formally cited. We're a recordkeeper of criticism, not a self appointed manufacturer of it. 81.111.115.63 (talk) 21:22, 23 April 2009 (UTC)
 * I tend to agree, I'm currently tidying the article, so expect to see this section dissapear or change in the near future. I won't be leaving anything in this section that can't be confirmed by reliable and competent third party sources.

G7/ HSR-350x
I think this issue has come up before. I assume that the article covers both the G7 project and the HSR-350 train. Is this correct.? (No answer means yes :___) Shortfatlad (talk) 01:21, 6 December 2009 (UTC)

Image question
thumb|250px|Inauguration ceremony of the [[EUROTEM (TÜVASAŞ-ROTEM) factory in Adapazarı, Turkey, which will licence build the HSR-350x trains that can reach a maximum speed of 352.4 km/h]]

Can anyone show that the caption in this image is true - as far as I can tell the eurotem factory has not yet said anything about making this train? only suburban emus???Shortfatlad (talk) 05:26, 6 December 2009 (UTC)

Total re-edit
The old version of the article was badly organised, full of dead links (including the main source for the data, a pdf brochure on the KRRI website that was replaced by another focused on the HEMU-400X), imprecise details, and some marketing talk apparently lifted directly from sources. So at long last I combed through a truckload of sources and completely re-wrote the entire article.

I tracked down sources for every detail in the old version, some of which led to corrections (f.e. brakes, power). I did not find non-dead-link and reliable sources (reliable: no blog, nor Wiki in another language that is unsourced itself) on the seating arrangement of the HSR-350x, and it's an experimental train crammed with measuring equipment rather than passengers anyway, so I dropped this from the old version. In the section on test runs, I decided to drop the details on going from 60 to 300 km/h and to detail the increases from 300 to 352.4 km/h instead: the linear progression in the first doesn't add anything, but the slowdown in the programme and the successive domestic speed records are noteworthy.

Sometimes I used both the English and Korean version of the same document as source. This is because on one hand, WP:NONENG advises that English sources be preferred, on the other hand, sometimes the English translations leave off important details.

I dealt with the issue of the multiple names (G7, HSR-350x, Hanvit 350) that confused many, as discussed by some editors above. There is one remaining issue in need of an explicit source, and thus not mentioned in the current version: the fact that the name "Hanvit" did not catch on (even KRRI returned to "Korean Tilting Train" resp. "HEMU-400X").

I did find the sources for the ambition to sell in Turkey, China, Taiwan, the USA and Brazil. However, these ambitions came to naught in the active time of HSR-350x, and it's not clear when the basis for the selling effort shifted from the HSR-350x to what became the KTX-II, so I left these out of the article.

The main bone of contention, on this Discussion page too, was the recurring claim about the "fourth country to develop a high-speed train". Some version of it (usually with a more quantifiable criterion than reflected in the discussion further up, like 350 km/h) appears in almost every government, research institute or manufacturer press release I came across, as well as conference presentations, research articles, or Korean newspaper articles, so the claim would be noteworthy. However, I left it out completely, and for now am against its inclusion for the following reasons.
 * 1) As a statement of fact, I consider none of the above mentioned sources to be reliable and having a neutral point of view. Even KRRI is no authority on high-speed rail in (all) other countries, and the claim appears as a statement of national pride from all Korean sources.
 * 2) Indeed the claim is factually wrong. If the criterion is the achievement of 350 km/h in tests, it forgets about the USA (LIMRV, 1974) and Spain (Talgo 350, 2001). If the criterion is 300 km/h in regular service, as it became when the KTX-II came out, then in addition to Spain, they  forget Italy (ETR 500 P, 2005) and arguably China (CRH2C, 2008). The "domestically developed/designed" criterion is rather cloudy, too: no high-speed train in the world was built entirely from scratch with 100% domestic technology, so they'd have to claim some cutoff level.
 * 3) To simply state the above in the article (as opposed to this discussion of sources and content here) would violate WP:OR.
 * 4) I think that the fact that this claim is made in so many Korean sources is noteworthy in itself, as a sign of the national ambition behind HSR-350x (it was not a simple company product but a big government-led project, after all). However, to add it as such, to not violate WP:OR, I'd need a source explicitly discussing it, and pointing out that the claim is erroneous. However, rail industry sources like Railway Gazette International tend to just ignore the claim, and the only source I found so far is a site that appears to be self-published (and Japanese, which by past experience I'd expect to be challenged as biased). Fortunately, the national ambition is emphasized enough by the explanation of the G7 project name. --Rontombontom (talk) 18:42, 21 November 2010 (UTC)
 * Thanks for your good work, and thanks for removing the "4th developer of HSR" claim - such statements of national pride are understandable, but don't really have a place in an encyclopedia.

Minor point
Quote :  The variable voltage variable frequency (VVVF) inverters are voltage-sourced with pulse-width modulation (PWM) control, rather than current-sourced with phase fired control (PFC) as in the KTX-I. - as a far as I know it's not practicably workable to use 'phase fired control' for a VVVF supply - as I understand it the phase fired control in the KTX-I is a choice related to available technology at the time and the use of synchronous motors. It may not have been intended to suggest that 'phase fired control' was used/suitable for VVVF supply; but the wording is a little vague.

Or I may be wrong and phase fired control can be used for VVVF supply if so examples please for my own benefit :) Otherwise could somone double check the sentence for possible misinterpretations. Thanks.Imgaril (talk) 13:00, 11 July 2011 (UTC)

Additionally, although the meaning of PWM will be clear to many in this context, it might be better to disambiguate here (as Phase fired controllers as are form of PWM) - I assume it's Pulse-density modulation to perform the frequency synthesis ? (Has someone got a reference for that?) article doesn't describe what I was thinking of Can someone clarify the type of PWN used for the VVVF drives. Thank you. Imgaril (talk) 13:27, 11 July 2011 (UTC)

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