{"id":7924,"date":"2022-12-10T22:00:20","date_gmt":"2022-12-10T21:00:20","guid":{"rendered":"https:\/\/onload.reinhausen.com\/de\/?p=7814"},"modified":"2025-08-05T16:15:09","modified_gmt":"2025-08-05T14:15:09","slug":"test-specialists-in-action","status":"publish","type":"post","link":"https:\/\/onload.reinhausen.com\/en\/12-2022\/test-specialists-in-action\/","title":{"rendered":"Test specialists in action"},"content":{"rendered":"

The load on cable systems in Germany is constantly increasing. Repairs to cable systems are associated with high cost and time factors. In order to control proper cable production and assembly after installation, a standard-compliant, high-voltage test is therefore carried out after final assembly.<\/h3>\n
\n

I<\/span>n the course of main\u00adte\u00adnance and net\u00adwork expan\u00adsion, high-per\u00adfor\u00admance pow\u00ader engi\u00adneer\u00ading com\u00adpo\u00adnents are upgrad\u00aded and new ones are built. At the Lichter\u00adfelde com\u00adbined heat and pow\u00ader plant in Berlin, the grid con\u00adnec\u00adtion is real\u00adized by means of 110 kV cable sys\u00adtems. The net\u00adwork oper\u00ada\u00adtor Strom\u00adnetz Berlin wants to expand its infra\u00adstruc\u00adture in order to be able to reli\u00adably sup\u00adply the Ger\u00adman cap\u00adi\u00adtal with elec\u00adtri\u00adcal ener\u00adgy in the future. In doing so, grid oper\u00ada\u00adtors in Ger\u00admany are fun\u00adda\u00admen\u00adtal\u00adly faced with a major chal\u00adlenge: the grid must both sup\u00adply the grow\u00ading demand for elec\u00adtric\u00adi\u00adty as well as inte\u00adgrate the volatile decen\u00adtral\u00adized ener\u00adgy pro\u00adduc\u00aders in a sta\u00adble man\u00adner. The increase in net\u00adwork\u00ading required as a result neces\u00adsi\u00adtates an increase in the num\u00adber of buried high-volt\u00adage cable con\u00adnec\u00adtions.<\/p>\n

Dur\u00ading lay\u00ading, dam\u00adage to the sheath and the main insu\u00adla\u00adtion as well as qual\u00adi\u00adty defects in the instal\u00adla\u00adtion of fit\u00adtings can occur. These can man\u00adi\u00adfest them\u00adselves in par\u00adtial dis\u00adcharges and lead to a fail\u00adure of the cable sec\u00adtion or an entire sub\u00adsta\u00adtion dur\u00ading oper\u00ada\u00adtion. Such a fail\u00adure can inter\u00adrupt the pow\u00ader sup\u00adply of an entire region. Dam\u00adage reme\u00addi\u00ada\u00adtion in the form of cable fault loca\u00adtion as well as repair and con\u00adstruc\u00adtion mea\u00adsures are time-con\u00adsum\u00ading and cost-inten\u00adsive for net\u00adwork oper\u00ada\u00adtors. In addi\u00adtion, dam\u00adage events can jeop\u00adar\u00addize grid sta\u00adbil\u00adi\u00adty. There\u00adfore, high-volt\u00adage tests with option\u00adal accom\u00adpa\u00adny\u00ading par\u00adtial dis\u00adcharge mea\u00adsure\u00adment after cable lay\u00ading are an invest\u00adment in qual\u00adi\u00adty assur\u00adance.<\/p>\n

\u201cFor net\u00adwork oper\u00ada\u00adtors, it becomes expen\u00adsive when laid cables fail and pow\u00ader fail\u00adures are the result. With HIGHVOLT\u2019s test\u00ading sys\u00adtem, we can pre\u00advent this sce\u00adnario and test cables reli\u00adably and direct\u00adly on site.\u201d Alexan\u00adder L\u00fcp\u00adschen, KOOPMANN Com\u00adpa\u00adny
\n<\/cite><\/p><\/blockquote>\n

With the HIGHVOLT res\u00ado\u00adnance test sys\u00adtem, engi\u00adneers of the Koop\u00admann Group have a mod\u00adern and mobile tech\u00adnol\u00ado\u00adgy at their dis\u00adpos\u00adal to test and diag\u00adnose cable sys\u00adtems on site. The core com\u00adpo\u00adnent of the sys\u00adtem is a 23-ton res\u00ado\u00adnance reac\u00adtor, which is pow\u00adered by state-of-the-art con\u00advert\u00ader and con\u00adtrol tech\u00adnol\u00ado\u00adgy as well as an exciter trans\u00adformer. The test cir\u00adcuit is round\u00aded off with an addi\u00adtion\u00adal high-volt\u00adage mea\u00adsur\u00ading divider, par\u00adtial dis\u00adcharge cou\u00adpler and reverse imped\u00adance.<\/p>\n

\n
<\/div>

The start:<\/b> The reli\u00ada\u00adbil\u00adi\u00adty of installed com\u00adpo\u00adnents is to be ensured with regard to main\u00adte\u00adnance and net\u00adwork expan\u00adsion. This includes test\u00ading after instal\u00adla\u00adtion. With\u00adin the scope of high-volt\u00adage test\u00ading, the Koop\u00admann Group from Clop\u00adpen\u00adburg, as a spe\u00adcial\u00adist in the field, takes care of this, using a mobile high-volt\u00adage test\u00ading sys\u00adtem from HIGHVOLT with up to 260 kV. <\/p><\/div>\n

<\/div>

Safe\u00adty first:<\/b> Before start\u00ading the con\u00adstruc\u00adtion of the high-volt\u00adage cir\u00adcuit, a ground\u00ading sys\u00adtem is set up and con\u00adnect\u00aded to all com\u00adpo\u00adnents of the test cir\u00adcuit. Work safe\u00adty always comes first. <\/p><\/div>\n

<\/div>

Pow\u00ader sup\u00adply:<\/b> Not only the net\u00adwork oper\u00ada\u00adtor but also the HIGHVOLT test sys\u00adtem requires a pow\u00ader\u00adful pow\u00ader sup\u00adply. This is done by means of a feed-in of up to 320 kVA. <\/p><\/div>\n

<\/div>

Test-cir\u00adcuit set\u00adup:<\/b> The engi\u00adneers install the test cir\u00adcuit. This includes in par\u00adtic\u00adu\u00adlar the high-volt\u00adage mea\u00adsur\u00ading divider and the par\u00adtial dis\u00adcharge cou\u00adpler. A block\u00ading induc\u00adtance is also used to pro\u00adtect against tran\u00adsients in the event of a flashover dur\u00ading the test.<\/p><\/div>\n<\/div>\n

\u201cTest\u00ading high-volt\u00adage cables after they have been laid is essen\u00adtial to check whether the cable and the nec\u00ades\u00adsary con\u00adnec\u00adtion sleeves are func\u00adtion\u00ading prop\u00ader\u00adly. With our per\u00adfect\u00aded tech\u00adnol\u00ado\u00adgy of fre\u00adquen\u00adcy-vari\u00adable res\u00ado\u00adnance test cir\u00adcuits, this can be real\u00adized in an uncom\u00adpli\u00adcat\u00aded way.\u201c Dr. Alexan\u00adder Win\u00adter, HIGHVOLT<\/cite><\/p><\/blockquote>\n

\n
<\/div>

Con\u00adnec\u00adtion of the test cable:<\/b> Direct con\u00adtact to the test object is not always pos\u00adsi\u00adble. In the case of test\u00ading via a gas-insu\u00adlat\u00aded switchgear, the test volt\u00adage is fed in with the aid of a tem\u00adporar\u00adi\u00adly laid test cable. <\/p><\/div>\n

<\/div>

Instal\u00adla\u00adtion of the PD sen\u00adsors:<\/b> The small\u00adest weak points can lead to a dam\u00adage event dur\u00ading oper\u00ada\u00adtion. The accom\u00adpa\u00adny\u00ading par\u00adtial dis\u00adcharge mea\u00adsure\u00adment dur\u00ading the test detects these weak points at an ear\u00adly stage. <\/p><\/div>\n

<\/div>

Final check:<\/b> Before the test sys\u00adtem is switched on, all con\u00adtacts are checked using the dual-con\u00adtrol prin\u00adci\u00adple. In addi\u00adtion, a safe\u00adty cir\u00adcuit is set up to close off the haz\u00adardous area. <\/p><\/div>\n

<\/div>

Test in progress \u2026<\/b> After one hour per phase, the cable test is com\u00adplet\u00aded. The engi\u00adneers ana\u00adlyze the mea\u00adsured data on site in the test con\u00adtain\u00ader. \u2009\u2026 and passed:<\/b> The cable shows no abnor\u00admal\u00adi\u00adties. The net\u00adwork oper\u00ada\u00adtor can put the cable sys\u00adtem into oper\u00ada\u00adtion and inte\u00adgrate it into the net\u00adwork. <\/p><\/div>\n<\/div>\n

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\n
Info<\/h5>\n
\n

Even if a high-volt\u00adage cable has been suc\u00adcess\u00adful\u00adly test\u00aded and laid on site, the insu\u00adla\u00adtion can suf\u00adfer dam\u00adage over the years. With the HiMON\u00ae mon\u00adi\u00adtor\u00ading sys\u00adtem from HIGHVOLT<\/strong>, how\u00adev\u00ader, it is pos\u00adsi\u00adble to keep a per\u00adma\u00adnent eye on kilo\u00adme\u00adter-long stretch\u00ades of under\u00adground cable and to gen\u00ader\u00adate dam\u00adage fore\u00adcasts thanks to arti\u00adfi\u00adcial intel\u00adli\u00adgence.<\/p>\n

<\/i> Find out more about the mon\u00adi\u00adtor\u00ading sys\u00adtem.<\/a><\/p>\n<\/div>\n<\/div>\n

\n

<\/p>\n

YOUR CONTACT<\/h2>\n

Do you have any ques\u00adtions about the project?<\/strong>
\nDr. Alexan\u00adder Win\u00adter is there for you:
\n<\/i> \u2009A.Winter@highvolt.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Repairs to cable sys\u00adtems cost time and mon\u00adey. There\u00adfore, a HIGHVOLT high-volt\u00adage test is car\u00adried out direct\u00adly after final assem\u00adbly.<\/p>\n","protected":false},"author":14,"featured_media":7942,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[13],"tags":[],"class_list":["post-7924","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-12-2022"],"acf":[],"_links":{"self":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/7924","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\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/comments?post=7924"}],"version-history":[{"count":4,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/7924\/revisions"}],"predecessor-version":[{"id":14698,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/posts\/7924\/revisions\/14698"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media\/7942"}],"wp:attachment":[{"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/media?parent=7924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/categories?post=7924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onload.reinhausen.com\/en\/wp-json\/wp\/v2\/tags?post=7924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}