{"id":3108,"date":"2018-06-06T22:40:04","date_gmt":"2018-06-06T20:40:04","guid":{"rendered":"https:\/\/onload.reinhausen.com\/de\/?p=3108"},"modified":"2023-05-30T10:11:01","modified_gmt":"2023-05-30T08:11:01","slug":"hvdc","status":"publish","type":"post","link":"https:\/\/onload.reinhausen.com\/en\/07-2018\/hvdc\/","title":{"rendered":"Record Power in China <\/i>"},"content":{"rendered":"

C<\/span>hina\u2019s econ\u00ado\u00admy is grow\u00ading rapid\u00adly, as is the resul\u00adtant demand for more and more elec\u00adtric\u00adi\u00adty to sus\u00adtain its glis\u00adten\u00ading megac\u00adi\u00adties. To help the metrop\u00ado\u00adlis\u00ades become clean\u00ader, even more ener\u00adgy is set to be gen\u00ader\u00adat\u00aded from renew\u00adable resources in the future. But the favor\u00adable con\u00addi\u00adtions need\u00aded to gen\u00ader\u00adate this ener\u00adgy are found far away from the urban areas in the east. Instead, they are found in the sparse\u00adly pop\u00adu\u00adlat\u00aded west\u00adern part of the coun\u00adtry, such as in the province of Xin\u00adjiang, where it is very windy and there are many hours of sun\u00adshine, as well as numer\u00adous rivers to gen\u00ader\u00adate hydropow\u00ader. The chal\u00adlenge is to trans\u00adport this ener\u00adgy over a large dis\u00adtance to where it is need\u00aded, while keep\u00ading loss\u00ades to a min\u00adi\u00admum.<\/p>\n

Transporting electrical energy over long distances<\/h2>\n

The solu\u00adtion to this chal\u00adlenge is high-volt\u00adage direct-cur\u00adrent (HVDC) trans\u00admis\u00adsion. To enable elec\u00adtric\u00adi\u00adty to be trans\u00adport\u00aded over large dis\u00adtances with the low\u00adest pos\u00adsi\u00adble loss\u00ades, the pow\u00ader must be trans\u00admit\u00adted with a low cur\u00adrent and high trans\u00admis\u00adsion volt\u00adage. For long trans\u00admis\u00adsion paths, this is most eco\u00adnom\u00adi\u00adcal with direct cur\u00adrent. There\u00adfore, at the begin\u00adning of the HVDC trans\u00admis\u00adsion line, the alter\u00adnat\u00ading cur\u00adrent is trans\u00adformed into direct cur\u00adrent in a con\u00advert\u00ader sta\u00adtion and then trans\u00adformed back to alter\u00adnat\u00ading cur\u00adrent at the end of the line.
\n
\nThere are already numer\u00adous HVDC lines in oper\u00ada\u00adtion around the world, but the new line that con\u00adnects the city of Changji in the Xin\u00adjiang province with Guquan in the Anhui province sur\u00adpass\u00ades all pre\u00advi\u00adous records. At 3,284 kilo\u00adme\u00adters long, it will have a trans\u00admis\u00adsion capac\u00adi\u00adty of twelve gigawatts when it is con\u00adnect\u00aded to the grid, which is expect\u00aded to take place at the end of 2018. This rough\u00adly cor\u00adre\u00adsponds to the pow\u00ader of twelve con\u00adven\u00adtion\u00adal large pow\u00ader sta\u00adtions. 1,100 kilo\u00advolts of direct-cur\u00adrent volt\u00adage is required for this trans\u00admis\u00adsion. By way of com\u00adpar\u00adi\u00adson, the high\u00adest trans\u00admis\u00adsion capac\u00adi\u00adty to date is eight gigawatts over a dis\u00adtance of
\n2,210 kilo\u00adme\u00adters with a trans\u00admis\u00adsion volt\u00adage of 800 kilo\u00advolts.<\/p>\n

Superlative transformers<\/h2>\n

The Chi\u00adnese ener\u00adgy com\u00adpa\u00adny \u201cState Grid Cor\u00adpo\u00adra\u00adtion of Chi\u00adna\u201d com\u00admis\u00adsioned Siemens to design 28 trans\u00adform\u00aders for the con\u00advert\u00ader sta\u00adtion at the end of the new line in Guquan. The trans\u00adform\u00aders, which were man\u00adu\u00adfac\u00adtured at two Siemens sites and two part\u00adner plants in Chi\u00adna, have set a new record as well: Each of the sev\u00aden 1,100 kilo\u00advolt DC sin\u00adgle-phase trans\u00adform\u00aders is 37.5 meters long, 14.5 meters high, twelve meters wide, and weighs 909 met\u00adric tons when in oper\u00ada\u00adtion. With a trans\u00admis\u00adsion capac\u00adi\u00adty of 587.1 mega\u00advolt-amperes each, they are the most pow\u00ader\u00adful HVDC trans\u00adform\u00aders in the world. This lev\u00adel of pow\u00ader places enor\u00admous demands on the trans\u00adform\u00aders and on the reli\u00ada\u00adbil\u00adi\u00adty of the tech\u00adnol\u00ado\u00adgy.<\/p>\n

Der VACUTAP\u00ae VR is par\u00adtic\u00adu\u00adlar\u00adly well suit\u00aded for HVDC appli\u00adca\u00adtions. (\u00a9 Maschi\u00adnen\u00adfab\u00adrik Rein\u00adhausen)<\/figcaption><\/figure>\n

If the pow\u00ader should fail, mil\u00adlions of peo\u00adple would be with\u00adout elec\u00adtric\u00adi\u00adty. When it came to the on-load tap-chang\u00aders, Siemens there\u00adfore used the VACUTAP\u00ae<\/sup> VR\u00ae<\/sup> from Maschi\u00adnen\u00adfab\u00adrik Rein\u00adhausen (MR). Silke Schwarzw\u00e4lder, Port\u00adfo\u00adlio Man\u00adag\u00ader for tap chang\u00aders at MR, explains: \u201cThe vac\u00adu\u00adum on-load tap-chang\u00ader VACUTAP\u00ae<\/sup> VR\u00ae<\/sup> is the most suit\u00adable option for the extra-high-volt\u00adage range and there\u00adfore for HVDC appli\u00adca\u00adtions. It is also very depend\u00adable in oper\u00ada\u00adtion.\u201d The VACUTAP\u00ae<\/sup> Advanced Arc Con\u00adtrol Sys\u00adtem enables the reli\u00adable quench\u00ading of the switch\u00ading arc and the VACUTAP\u00ae<\/sup> Step Pro\u00adtec\u00adtion Sys\u00adtem\u00ae<\/sup> offers pro\u00adtec\u00adtion against over\u00advolt\u00adages.<\/p>\n

Anoth\u00ader advan\u00adtage is that the VACUTAP\u00ae<\/sup> VR\u00ae<\/sup> is extreme\u00adly eco\u00adnom\u00adi\u00adcal, as it is capa\u00adble of per\u00adform\u00ading 300,000 tap-change oper\u00ada\u00adtions with\u00adout any main\u00adte\u00adnance. The divert\u00ader switch insert can be used for 1.2 mil\u00adlion tap changes before need\u00ading to be replaced. \u201cThe con\u00advert\u00ader sta\u00adtions are locat\u00aded in very remote regions, which means that they need to be low-main\u00adte\u00adnance,\u201d explains Schwarzw\u00e4lder.<\/p>\n

The longest bushings in the world<\/h2>\n

The vast trans\u00adformer dimen\u00adsions also pre\u00adsent\u00aded oth\u00ader sup\u00adpli\u00aders with enor\u00admous chal\u00adlenges. This includ\u00aded the glob\u00adal mar\u00adket leader in high-volt\u00adage bush\u00adings \u2013 HSP Hochspan\u00adnungs\u00adger\u00e4te GmbH from the Ger\u00adman city of Cologne. Mar\u00adcus Cramer von Claus\u00adbruch, Region\u00adal Sales Man\u00adag\u00ader at HSP, describes the scale of the project: \u201cWe built a sep\u00ada\u00adrate plant to pro\u00adduce the 1,100 kilo\u00advolt DC bush\u00adings, as the exist\u00ading hall was too small.\u201d The bush\u00adings pro\u00adduced by HSP for the HVDC trans\u00adform\u00aders are 19 meters long and weigh 15.5 met\u00adric tons. Yet anoth\u00ader record! These are the longest and heav\u00adi\u00adest trans\u00adformer bush\u00adings on the mar\u00adket to date.<\/p>\n

\u201eThere are not many com\u00adpa\u00adnies that can pro\u00adduce hol\u00adlow insu\u00adla\u00adtors of 15 meters in length.\u201cMar\u00adcus Cramer von Claus\u00adbruch, Region\u00adal Sales Man\u00adag\u00ader at HSP<\/cite><\/p><\/blockquote>\n

The Bush\u00ading of the trans\u00adfor\u00adma\u00adtor in the test field of HSP Hochspan\u00adnungs\u00adger\u00e4te GmbH. (\u00a9 HSP)<\/figcaption><\/figure>\n

\u201cWith AC volt\u00adage, these kinds of bush\u00adings only weigh one met\u00adric ton,\u201d explains Cramer von Claus\u00adbruch. HSP is one of the few com\u00adpa\u00adnies any\u00adwhere in the world that can pro\u00adduce bush\u00adings in such large dimen\u00adsions using resin tech\u00adnol\u00ado\u00adgy. The sol\u00adid active com\u00adpo\u00adnent con\u00adsists of resin-impreg\u00adnat\u00aded paper (RIP), which means that the bush\u00ading is free from oil. \u201cThis require\u00adment was stip\u00adu\u00adlat\u00aded by Chi\u00adna, as oil is too high a risk fac\u00adtor when used with these com\u00adpo\u00adnents for extra-high-volt\u00adage appli\u00adca\u00adtions.\u201d For the insu\u00adla\u00adtion, HSP used hol\u00adlow com\u00adpos\u00adite insu\u00adla\u00adtors with shield\u00ading from Rein\u00adhausen France SAS. \u201cThere are not many com\u00adpa\u00adnies that can pro\u00adduce hol\u00adlow insu\u00adla\u00adtors of 15 meters in length which also sat\u00adis\u00adfy the demand\u00ading spec\u00adi\u00adfi\u00adca\u00adtions,\u201d explains Cramer von Claus\u00adbruch.<\/p>\n

Along\u00adside the insu\u00adlat\u00ading prop\u00ader\u00adties, pro\u00adtec\u00adtion against earth\u00adquakes was also an impor\u00adtant require\u00adment. \u201cWe\u2019re talk\u00ading about 1,200 kilo\u00advolts here. If that goes bang, then you real\u00adly know about it!\u201d To pre\u00advent this from hap\u00adpen\u00ading, HSP has test\u00aded the bush\u00adings exten\u00adsive\u00adly. \u201cEven the rou\u00adtine pro\u00adgram on a bush\u00ading takes five days,\u201d says Cramer von Claus\u00adbruch. The Region\u00adal Sales Man\u00adag\u00ader sees great poten\u00adtial for the future of such appli\u00adca\u00adtions: \u201cThe gen\u00ader\u00ada\u00adtion and trans\u00admis\u00adsion of large quan\u00adti\u00adties of ener\u00adgy is grow\u00ading in sig\u00adnif\u00adi\u00adcance all over the world.\u201d<\/p>\n\n

\n
\n
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REINHAUSEN INSIDE<\/h5>\n
\n

You can find more infor\u00adma\u00adtion on the VACUTAP\u00ae<\/sup> VR\u00ae<\/sup> at:
\nwww.reinhausen.com\/vacutapvr<\/a><\/p>\n

Any ques\u00adtions on the vac\u00adu\u00adum on-load tap-chang\u00ader?
\n<\/strong>Silke Schwarzw\u00e4lder will be hap\u00adpy to advise you:
\n<\/i> sales@reinhausen.com<\/strong><\/a><\/p>\n

\n

You will find more infor\u00adma\u00adtion on our exper\u00adtise in the field of hol\u00adlow com\u00adpos\u00adite insu\u00adla\u00adtors here: www.reinhausen.com\/rpc<\/a><\/p>\n

Any ques\u00adtions on our hol\u00adlow com\u00adpos\u00adite insu\u00adla\u00adtors?<\/strong>
\nThen please con\u00adtact:
\n<\/i> rpc@reinhausen.com<\/strong><\/a><\/p>\n<\/div>\n<\/div>\n

<\/p><\/div>\n\n","protected":false},"excerpt":{"rendered":"

Chi\u00adna is devel\u00adop\u00ading the longest high-volt\u00adage direct-cur\u00adrent trans\u00admis\u00adsion line in the world. Every\u00adthing about this project is gigan\u00adtic \u2013 includ\u00ading the 28 trans\u00adform\u00aders designed by Siemens for the con\u00advert\u00ader sta\u00adtion. No one has ever built any\u00adthing so pow\u00ader\u00adful before. And Rein\u00adhausen exper\u00adtise is play\u00ading a key role in the project.<\/p>\n","protected":false},"author":8,"featured_media":2958,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3108","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-07-2018"],"acf":[],"_links":{"self":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/3108","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/comments?post=3108"}],"version-history":[{"count":1,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/3108\/revisions"}],"predecessor-version":[{"id":8347,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/3108\/revisions\/8347"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media\/2958"}],"wp:attachment":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media?parent=3108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/categories?post=3108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/tags?post=3108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}