{"id":13058,"date":"2024-12-16T09:42:29","date_gmt":"2024-12-16T08:42:29","guid":{"rendered":"https:\/\/onload.reinhausen.com\/de\/?p=13058"},"modified":"2024-12-16T09:42:30","modified_gmt":"2024-12-16T08:42:30","slug":"transformer-retrofit-digitization","status":"publish","type":"post","link":"https:\/\/onload.reinhausen.com\/en\/12-2024\/transformer-retrofit-digitization\/","title":{"rendered":"MITNETZ STROM digitizes"},"content":{"rendered":"\n
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Some\u00adtimes it\u2019s the lit\u00adtle things that get on your nerves. For Jan Sch\u00f6n\u00adfeld, Asset Man\u00adag\u00ader at MITNETZ STROM, and his col\u00adleagues at the Meusel\u00adwitz sub\u00adsta\u00adtion in Thuringia, it was the pro\u00adtec\u00adtive devices on two pow\u00ader trans\u00adform\u00aders that kept tripping\u2013seemingly for no reason\u2013during the sum\u00admer months. All attempts to get to the bot\u00adtom of the prob\u00adlem failed.<\/p>\n\n\n\n

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\u201cThe trip\u00adping has no effect on the pow\u00ader sup\u00adply,\u201d explains Jan Sch\u00f6n\u00adfeld, but adds \u201cWhile the trans\u00adformer con\u00adtin\u00adues to run despite irreg\u00adu\u00adlar\u00adi\u00adties, we of course still have to inves\u00adti\u00adgate such mal\u00adfunc\u00adtions.\u201d When Maschi\u00adnen\u00adfab\u00adrik Rein\u00adhausen pre\u00adsent\u00aded the ETOS\u00ae sys\u00adtem to him in the fall of 2023, it came at just the right time. The abil\u00adi\u00adty to quick\u00adly locate irreg\u00adu\u00adlar\u00adi\u00adties with the help of sen\u00adsor-based, real-time mon\u00adi\u00adtor\u00ading of trans\u00adform\u00aders awak\u00adened his hopes of being able to get to the bot\u00adtom of prob\u00adlems with\u00adout much effort in the future. It soon became clear that this is by no means the only advan\u00adtage offered by ETOS\u00ae.<\/p>\n\n\n\n

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\u201cThe feed-in of renew\u00adable ener\u00adgies, the increas\u00ading demand for elec\u00adtric\u00adi\u00adty for the charg\u00ading infra\u00adstruc\u00adture of elec\u00adtric vehi\u00adcles or new heat\u00ading sys\u00adtems often exceed the capac\u00adi\u00adty of our trans\u00adform\u00aders.\u201d<\/p>\nJan Sch\u00f6n\u00adfeld, Asset Man\u00adag\u00ader at MITNETZ STROM.<\/cite><\/blockquote>\n\n\n\n

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A Digital Twin for the Transformer <\/h2>\n\n\n\n

ETOS\u00ae\u2013an open sys\u00adtem solu\u00adtion for pow\u00ader transformers\u2013enables the intel\u00adli\u00adgent real-time mon\u00adi\u00adtor\u00ading of oper\u00ada\u00adtion as well as the con\u00adtrol of pow\u00ader trans\u00adform\u00aders. Sen\u00adsors on the trans\u00adformer col\u00adlect all rel\u00ade\u00advant oper\u00adat\u00ading data, which is then eval\u00adu\u00adat\u00aded by the CPU in the ETOS\u00ae con\u00adtrol cab\u00adi\u00adnet. This also allows main\u00adte\u00adnance work to be planned in a tar\u00adget\u00aded man\u00adner. \u201cETOS\u00ae serves as a data source for imple\u00adment\u00ading a dig\u00adi\u00adtal twin of the pow\u00ader trans\u00adformer, so to speak,\u201d sum\u00adma\u00adrizes Chris\u00adt\u00adian Hofmeis\u00adter, Project Man\u00adag\u00ader Ser\u00advice Solu\u00adtions.<\/p>\n\n\n\n

This was fas\u00adci\u00adnat\u00ading to Jan Sch\u00f6n\u00adfeld and his col\u00adleagues, and togeth\u00ader with MR they launched a trans\u00adformer ser\u00advice project at the Meusel\u00adwitz sub\u00adsta\u00adtion: two trans\u00adform\u00aders that con\u00advert the 110 kV of the high-volt\u00adage grid into 20 kV for the medi\u00adum-volt\u00adage grid were equipped with intel\u00adli\u00adgent sen\u00adsors and the exist\u00ading motor dri\u00adves were replaced with two intel\u00adli\u00adgent ETOS\u00ae dri\u00adve cab\u00adi\u00adnets.<\/p>\n\n\n\n

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Two trans\u00adform\u00aders, which con\u00advert the 110 kV of the high-volt\u00adage grid into 20 kV for the medi\u00adum-volt\u00adage grid, were equipped with intel\u00adli\u00adgent sen\u00adsors before the ETOS\u00ae con\u00adtrol cab\u00adi\u00adnets were installed.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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The MR team pre\u00adpared every step of the retro\u00adfit in advance.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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Good Care, Long life <\/h2>\n\n\n\n

MITNETZ STROM is the largest dis\u00adtri\u00adb\u00adu\u00adtion grid oper\u00ada\u00adtor in east\u00adern Ger\u00admany. The elec\u00adtric\u00adi\u00adty grid has a length of almost 72,000 kilo\u00adme\u00adters, spread over an area of more than 29,000 square kilo\u00adme\u00adters and the com\u00adpa\u00adny sup\u00adplies around 2.2 mil\u00adlion peo\u00adple in Bran\u00adden\u00adburg, Sax\u00adony, Sax\u00adony-Anhalt and Thuringia with ener\u00adgy. MITNETZ STROM is a whol\u00adly-owned sub\u00adsidiary of envia Mit\u00adteldeutsche Energie AG, which in turn belongs to the EON Group.<\/p>\n\n\n\n

\u201cWe are strug\u00adgling with the same prob\u00adlems that are affect\u00ading the entire indus\u00adtry,\u201d says Jan Sch\u00f6n\u00adfeld: \u201cThe feed-in of renew\u00adable ener\u00adgies, the increas\u00ading demand for elec\u00adtric\u00adi\u00adty for the charg\u00ading infra\u00adstruc\u00adture of elec\u00adtric vehi\u00adcles, new heat\u00ading sys\u00adtems and the ever-increas\u00ading ener\u00adgy require\u00adments of data cen\u00adters often exceed the capac\u00adi\u00adty of our trans\u00adform\u00aders.\u201d And the trans\u00adform\u00aders at MITNETZ STROM, as in the rest of Ger\u00admany, are often get\u00adting on in years.<\/p>\n\n\n\n

\u201cTrans\u00adform\u00aders have an aver\u00adage life expectan\u00adcy of around 50 years,\u201d explains Sch\u00f6n\u00adfeld and adds: \u201cWe have a whole range of years of con\u00adstruc\u00adtion in our 250 or so trans\u00adform\u00aders. Some date back to the 1970s, oth\u00aders we have already replaced as part of the grid expan\u00adsion. How\u00adev\u00ader, we are always keen to keep trans\u00adform\u00aders con\u00adnect\u00aded to the grid for as long as pos\u00adsi\u00adble.\u201d The rea\u00adsons for this are obvi\u00adous: deliv\u00adery times for new trans\u00adform\u00aders are cur\u00adrent\u00adly sev\u00ader\u00adal years and prices have gone through the roof. At the same time, the prices for mon\u00adi\u00adtor\u00ading sys\u00adtems have fall\u00aden sig\u00adni\ufb01\u00adcant\u00adly. \u201cIn addi\u00adtion, retro\ufb01t\u00adting with elec\u00adtron\u00adics and sen\u00adsors is much less expen\u00adsive than dis\u00adman\u00adtling and remov\u00ading an old trans\u00adformer and installing a new one,\u201d says Sch\u00f6n\u00adfeld.<\/p>\n\n\n\n

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\u201cThe demands on the ETOS\u00ae sys\u00adtem can vary depend\u00ading on the work\u00adload, which is why we design each cab\u00adi\u00adnet indi\u00advid\u00adu\u00adal\u00adly.\u201d<\/p>\nChris\u00adt\u00adian Hofmeis\u00adter, Project Man\u00adag\u00ader Ser\u00advice Solu\u00adtions at MR.<\/cite><\/blockquote>\n\n\n\n

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It contains everything you need <\/h2>\n\n\n\n

The ETOS\u00ae sys\u00adtem has a mod\u00adu\u00adlar struc\u00adture, as Chris\u00adt\u00adian Hofmeis\u00adter explains: \u201cIt is impor\u00adtant to us that cus\u00adtomers get exact\u00adly the func\u00adtions they need. Depend\u00ading on the work\u00adload, the demands on the sys\u00adtem can vary, which is why we design each cab\u00adi\u00adnet indi\u00advid\u00adu\u00adal\u00adly.\u201d The two trans\u00adform\u00aders for the Meusel\u00adwitz sub\u00adsta\u00adtion, for exam\u00adple, were equipped with sen\u00adsors for bush\u00ading monitoring\u2013after all, defec\u00adtive bush\u00adings are respon\u00adsi\u00adble for 17 per\u00adcent of all trans\u00adformer fail\u00adures. \u201cTem\u00adper\u00ada\u00adture man\u00adage\u00adment is also car\u00adried out by ETOS\u00ae, which con\u00adtin\u00adu\u00adous\u00adly deter\u00admines and records the wind\u00ading tem\u00adper\u00ada\u00adture. This makes it pos\u00adsi\u00adble to min\u00adi\u00admize the hot-spot tem\u00adper\u00ada\u00adture at an ear\u00adly stage,\u201d explains Hofmeis\u00adter.<\/p>\n\n\n\n

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For opti\u00admized cool\u00ading, the MR experts net\u00adworked the exist\u00ading cool\u00ading sys\u00adtem con\u00adtrol cab\u00adi\u00adnets with the ETOS\u00ae dri\u00adve cab\u00adi\u00adnets. \u201cBased on the mea\u00adsured val\u00adues, we can start pre-cool\u00ading at a cer\u00adtain load cur\u00adrent val\u00adue,\u201d says Hofmeis\u00adter. Elec\u00adtron\u00adic dehu\u00admid\u00adi\u00adfiers will also reduce main\u00adte\u00adnance costs in future.<\/p>\n\n\n\n

\u201cPre\u00advi\u00adous\u00adly, our main\u00adte\u00adnance staff had to replace the sil\u00adi\u00adca gel beads every six months,\u201d says Sch\u00f6n\u00adfeld and explains, \u201cThis is no longer nec\u00ades\u00adsary because the new dehu\u00admid\u00adi\u00adfiers dry the sil\u00adi\u00adca gel beads auto\u00admat\u00adi\u00adcal\u00adly on a cycli\u00adcal basis.\u201d The so-called VAM sen\u00adsor for vibro-acoustic mea\u00adsure\u00adments in the on-load tap-chang\u00ader was also very impor\u00adtant to Sch\u00f6n\u00adfeld and his team. \u201cIt records the vibra\u00adtions dur\u00ading the switch\u00ading process\u00ades and com\u00adpares them with stored ref\u00ader\u00adence val\u00adues,\u201d says Sch\u00f6n\u00adfeld. \u201cAn alarm is trig\u00adgered in the event of devi\u00ada\u00adtions.\u201d The advan\u00adtage: no time-con\u00adsum\u00ading removal of the on-load tap-chang\u00ader is nec\u00ades\u00adsary, and an analy\u00adsis ser\u00advice pro\u00advides a detailed report with rec\u00adom\u00admen\u00adda\u00adtions and mea\u00adsures to rec\u00adti\u00adfy the irreg\u00adu\u00adlar\u00adi\u00adty. \u201cThat\u2019s exact\u00adly what I was look\u00ading for,\u201d says Sch\u00f6n\u00adfeld with sat\u00adis\u00adfac\u00adtion.<\/p>\n\n\n\n

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Two intel\u00adli\u00adgent ETOS\u00ae con\u00adtrol cab\u00adi\u00adnets replace the old motor dri\u00adves.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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Ready for the future: it took just five days to set up and com\u00admis\u00adsion the ETOS\u00ae con\u00adtrol cab\u00adi\u00adnets.<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n

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With Individuality, Expertise and Care<\/h2>\n\n\n\n

In order to design the ETOS\u00ae dri\u00adve cab\u00adi\u00adnets for MITNETZ STROM, Chris\u00adt\u00adian Hofmeis\u00adter dug deep into the cir\u00adcuit dia\u00adgrams, the trans\u00adformer data and the ven\u00adti\u00adla\u00adtion con\u00adtrol data. \u201cOf course, you can expect exper\u00adtise from a mar\u00adket leader like MR,\u201d says Sch\u00f6n\u00adfeld, but adds, impressed. \u201cOur con\u00adtacts are often employ\u00adees from sales depart\u00adments which makes every\u00adthing more com\u00adpli\u00adcat\u00aded because infor\u00adma\u00adtion always goes via detours to the real experts. How\u00adev\u00ader, we com\u00admu\u00adni\u00adcat\u00aded with Chris\u00adt\u00adian Hofmeis\u00adter direct\u00adly and at eye lev\u00adel and he real\u00adly looked at every wiring, every cross-sec\u00adtion, all con\u00adnec\u00adtions and cable bush\u00adings as well as all inter\u00adfaces in detail.\u201d Sch\u00f6n\u00adfeld also liked the uncon\u00adven\u00adtion\u00adal but time-sav\u00ading way of find\u00ading solu\u00adtions via vir\u00adtu\u00adal meet\u00adings and a cell phone cam\u00adera: \u201cInstead of hav\u00ading a cum\u00adber\u00adsome meet\u00ading on site, a col\u00adleague went out to the trans\u00adform\u00aders with a cell phone to show the MR experts the local con\u00addi\u00adtions.\u201d<\/p>\n\n\n\n

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Into the future in fice days <\/h2>\n\n\n\n

It took just five days to set up and com\u00admis\u00adsion the ETOS\u00ae dri\u00adve cab\u00adi\u00adnets. \u201cTwo weeks before we start\u00aded, I pre\u00adpared and reviewed all the com\u00admis\u00adsion\u00ading doc\u00adu\u00adments,\u201d says Hofmeis\u00adter. In a meet\u00ading, he then care\u00adful\u00adly briefed all the ser\u00advice tech\u00adni\u00adcians and went through every step of the con\u00adver\u00adsion with them. He was on site him\u00adself for the com\u00admis\u00adsion\u00ading. \u201cNow I know the trans\u00adform\u00aders in Meusel\u00adwitz inside and out,\u201d he says with a grin. A new era is begin\u00adning for the team at the Meusel\u00adwitz sub\u00adsta\u00adtion, and their ETOS\u00ae dri\u00adve cab\u00adi\u00adnets are the pilot for oth\u00ader MITNETZ STROM sub\u00adsta\u00adtions. And Jan Sch\u00f6n\u00adfeld is opti\u00admistic. \u201cIn the future, trans\u00adformer faults can be detect\u00aded and rec\u00adti\u00adfied at an ear\u00adly stage, which will hope\u00adful\u00adly put an end to unplanned main\u00adte\u00adnance work on Sun\u00adday evenings,\u201d he says.<\/p>\n\n\n\n

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Reinhausen Inside<\/h4>\n\n\n\n

The open ETOS\u00ae oper\u00adat\u00ading sys\u00adtem is easy and intu\u00aditive to use. MR also offers prac\u00adtice-based online train\u00ading cours\u00ades for begin\u00adners and advanced tech\u00adni\u00adcians who are entrust\u00aded with the com\u00admis\u00adsion\u00ading or use of ETOS\u00ae. The free live train\u00ading cours\u00ades each focus on a spe\u00adcif\u00adic top\u00adic, which expe\u00adri\u00adenced train\u00aders explain in a com\u00adpact for\u00admat.<\/p>\n<\/div><\/div>\n\n\n\n

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YOUR CONTACT PERSON<\/h2>\n\n\n\n

Do you have any ques\u00adtions about the retro\u00adfit project? Bas\u00adt\u00adian Auer\u00adbach is there for you:
<\/i><\/a> \u2009<\/a>B.Auerbach@reinhausen.com<\/a><\/p>\n<\/div><\/div>\n\n\n\n

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How\u2019s the trans\u00adformer? The grid oper\u00ada\u00adtor MITNETZ STROM wants to know exact\u00adly and is equip\u00adping two pow\u00ader trans\u00adform\u00aders at the Meusel\u00adwitz sub\u00adsta\u00adtion with ETOS\u00ae. With this cen\u00adtral con\u00adtrol and mon\u00adi\u00adtor\u00ading sys\u00adtem, the con\u00addi\u00adtion of trans\u00adform\u00aders can be con\u00adtin\u00adu\u00adous\u00adly mon\u00adi\u00adtored, and their ser\u00advice life increased through pre\u00addic\u00adtive main\u00adte\u00adnance.<\/p>\n","protected":false},"author":4,"featured_media":13588,"comment_status":"closed","ping_status":"open","sticky":false,"template":"template-video-header.php","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-13058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-12-2024"],"acf":[],"_links":{"self":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/13058","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\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/comments?post=13058"}],"version-history":[{"count":22,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/13058\/revisions"}],"predecessor-version":[{"id":13582,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/13058\/revisions\/13582"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media\/13588"}],"wp:attachment":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media?parent=13058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/categories?post=13058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/tags?post=13058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}