{"id":5207,"date":"2024-04-07T11:23:49","date_gmt":"2024-04-07T09:23:49","guid":{"rendered":"https:\/\/w2.mwtc.tech\/?post_type=avada_portfolio&#038;p=5207"},"modified":"2024-11-08T18:59:09","modified_gmt":"2024-11-08T17:59:09","slug":"cizatice-rekonstrukcia-vysielaca","status":"publish","type":"avada_portfolio","link":"https:\/\/www.mwtc.tech\/index.php\/portfolio-items\/cizatice-rekonstrukcia-vysielaca\/","title":{"rendered":"\u010ci\u017eatice rekon\u0161trukcia vysiela\u010da"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:1216.8px;margin-left: calc(-4% \/ 2 );margin-right: calc(-4% \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:1.92%;--awb-margin-bottom-large:0px;--awb-spacing-left-large:1.92%;--awb-width-medium:100%;--awb-spacing-right-medium:1.92%;--awb-spacing-left-medium:1.92%;--awb-width-small:100%;--awb-spacing-right-small:1.92%;--awb-spacing-left-small:1.92%;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><ul class=\"project_startlist\">\n<li>\n<h4><strong>Project Starting Date<\/strong><\/h4>\n<p>10.05.2021<\/li>\n<li>\n<h4><strong>Project End<\/strong><\/h4>\n<p>14.12.2021<\/li>\n<\/ul>\n<div class=\"row case_study_col mbot35\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-cs-12\">\n<h4 class=\"fnt_28\"><strong>Project Description<\/strong><\/h4>\n<p class=\"line_he4 mbot30\">\u00dalohou na\u0161ej firmy bolo dohliada\u0165 nad v\u00fdmenou stredovlnn\u00e9ho vysiela\u010da. P\u00f4vodn\u00e1 technol\u00f3gia od fy. Tesla z cca 90-tych rokov minul\u00e9ho storo\u010dia sa vymenila za vysiela\u010d NX-5 of Kanadskej firmy Nautel. Lokaliz\u00e1cia pracoviska &#8211; objekt \u010ci\u017eatice asi na pol ceste medzi Pre\u0161ovom a Ko\u0161icami. Sign\u00e1lna trasa za\u010d\u00edna v kovovom kontajneri, kde je umiestnen\u00fd vysiela\u010d, ktor\u00fd je pripojen\u00fd koaxi\u00e1lnym k\u00e1blom 50 Ohm do ant\u00e9nneho dom\u010deka na prisp\u00f4sobovac\u00ed obvod typu L a odtia\u013e na vysielac\u00ed monop\u00f3l s v\u00fd\u0161kou cca 75m.<\/p>\n<p><img decoding=\"async\" class=\"lazyload alignnone size-medium wp-image-5214\" src=\"http:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-300x179.jpg\" data-orig-src=\"http:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-300x179.jpg\" alt=\"\" width=\"300\" height=\"179\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27300%27%20height%3D%27179%27%20viewBox%3D%270%200%20300%20179%27%3E%3Crect%20width%3D%27300%27%20height%3D%27179%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-200x120.jpg 200w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-300x179.jpg 300w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-400x239.jpg 400w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-600x359.jpg 600w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-768x459.jpg 768w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-800x478.jpg 800w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-1024x612.jpg 1024w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-1200x718.jpg 1200w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3-1536x919.jpg 1536w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice3.jpg 1617w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 300px) 100vw, 300px\" \/>\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 <img decoding=\"async\" class=\"lazyload alignnone size-medium wp-image-5216\" src=\"http:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-300x182.jpg\" data-orig-src=\"http:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-300x182.jpg\" alt=\"\" width=\"300\" height=\"182\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27300%27%20height%3D%27182%27%20viewBox%3D%270%200%20300%20182%27%3E%3Crect%20width%3D%27300%27%20height%3D%27182%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-200x122.jpg 200w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-300x182.jpg 300w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-400x243.jpg 400w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-600x365.jpg 600w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-768x467.jpg 768w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-800x487.jpg 800w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-1024x623.jpg 1024w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-1200x730.jpg 1200w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2-1536x934.jpg 1536w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice2.jpg 1616w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p class=\"line_he4\">Pri prvotnom meran\u00ed sign\u00e1lnej trasy bolo zisten\u00e9, \u017ee L \u010dl\u00e1nok nie je mo\u017en\u00e9 nastavi\u0165 na PSV=1, \u017ee koaxi\u00e1lny k\u00e1bel vykazuje indukt\u00edvnu jalovinu a zemnenia s\u00fa zapojen\u00e9 v rozpore z po\u017eiadavkami vysiela\u010da NX-5.\u00a0 Bleskozvodov\u00e1 s\u00fastava monop\u00f3lu vykazovala vysok\u00fd zemn\u00fd odpor. Po dohode s prev\u00e1dzkovate\u013eom bol vymenen\u00fd nap\u00e1ja\u010d \/ koaxi\u00e1lny k\u00e1bel. Taktie\u017e boli dok\u00fapen\u00e9 vodi\u010de, ktor\u00e9 sp\u00e1jaj\u00fa ant\u00e9nny dom\u010dek s kontejnerom a boli zapojen\u00e9 tak aby sa minimalizovala tak vonkaj\u0161ia ako aj vn\u00fatorn\u00e1 impedancia k\u00e1blov. Taktie\u017e bola odstr\u00e1nen\u00e1 porucha na bleskozvodovej s\u00fastave. Po mechanickej str\u00e1nke boli vymenen\u00e9 skrutky a napru\u017eili sa lan\u00e1, ktor\u00e9 dr\u017eia v kolmej polohe vysielac\u00ed monop\u00f3l.<\/p>\n<\/div>\n<\/div>\n<div class=\"row case_study_col mbot35\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-cs-12\">\n<h4 class=\"fnt_28\"><strong>The Challenge in the design<\/strong><\/h4>\n<p class=\"line_he4 mbot30\">Okrem radu drobn\u00fdch nedostatkov, ktor\u00e9 sa dali pomerne r\u00fdchlo a bez \u0161peci\u00e1lnych znalost\u00ed vyrie\u0161i\u0165, ostali e\u0161te dva probl\u00e9my: 1. nevhodne zapojen\u00fd L \u010dl\u00e1nok. 2. len jedno iskri\u0161te ochra\u0148uj\u00face vysiela\u010d pred priamym \u00faderom blesku. Probl\u00e9m s L \u010dl\u00e1nkom sa vyrie\u0161il vytvoren\u00edm nov\u00e9ho mechanick\u00e9ho dr\u017eiaka na bat\u00e9riu kondenz\u00e1torov s v\u00e4\u010d\u0161ou kapacitou, ne\u017e tomu bolo p\u00f4vodne a s upraven\u00edm induk\u010dnosti cievky, pomocou skratkovacieho vedenia. Pri namontovan\u00ed prvkov do rozv\u00e1dza\u010da u\u017e bolo mo\u017en\u00e9 nastavi\u0165 PSV na hodnotu bl\u00edzku 1.<\/p>\n<p class=\"line_he4\">V\u00e4\u010d\u0161\u00ed probl\u00e9m bol s rie\u0161en\u00edm probl\u00e9mu 2. Ka\u017ed\u00e9mu technicky zdatn\u00e9mu \u010ditate\u013eovi je jasn\u00e9, \u017ee treba na trase k vysiela\u010du pou\u017ei\u0165 prvok, prvky, ktor\u00e9 zn\u00ed\u017eia nap\u00e4\u0165ov\u00fa \u00farove\u0148 na veden\u00ed &#8211; doznievaj\u00faci impulz, ktor\u00fd je sp\u00f4soben\u00fd bleskom a nevysr\u0161al sa na iskri\u0161ti.<\/p>\n<\/div>\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-cs-12\">\n<div class=\"description_txt\">\n<p class=\"line_he4 mbot30\">\u00a0Tak\u00fdmto prvkom sa jav\u00ed dostato\u010dne v\u00fdkonn\u00e1 blestkoistka &#8211; GDT. Firma na\u0161la rie\u0161enie, kde a ako pripoji\u0165 s\u00fastavu GDT prvkov tak, aby sa nezni\u010dili pri prvom \u00fadere blesku a z\u00e1rove\u0148 dostato\u010dne chr\u00e1nili vysiela\u010d pred po\u0161koden\u00edm. Bli\u017e\u0161ie inform\u00e1cie o metodike n\u00e1vrhu ochrany proti energetick\u00e9mu impulzu m\u00f4\u017eete n\u00e1js\u0165 na str\u00e1nke <a href=\"https:\/\/istu.ru\/material\/vestnik-izhgtu-imeni-m-t-kalashnikova\/\">www.istu.ru<\/a>. v polo\u017eke: \u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435 \u0436\u0443\u0440\u043d\u0430\u043b\u0430 \u00ab\u0412\u0435\u0441\u0442\u043d\u0438\u043a \u0418\u0436\u0413\u0422\u0423\u00bb \u0437\u0430 2021 \u0433. \u2116 4<\/p>\n<\/div>\n<\/div>\n<\/div>\n<h4><img decoding=\"async\" class=\"lazyload alignnone size-medium wp-image-5215\" src=\"http:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4-262x300.jpg\" data-orig-src=\"http:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4-262x300.jpg\" alt=\"\" width=\"262\" height=\"300\" srcset=\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27262%27%20height%3D%27300%27%20viewBox%3D%270%200%20262%20300%27%3E%3Crect%20width%3D%27262%27%20height%3D%27300%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\" data-srcset=\"https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4-200x229.jpg 200w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4-262x300.jpg 262w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4-400x458.jpg 400w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4-600x686.jpg 600w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4-768x878.jpg 768w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4-800x915.jpg 800w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4-895x1024.jpg 895w, https:\/\/www.mwtc.tech\/wp-content\/uploads\/2024\/04\/Project_img_Cizatice4.jpg 904w\" data-sizes=\"auto\" data-orig-sizes=\"(max-width: 262px) 100vw, 262px\" \/><\/h4>\n<div class=\"row case_study_col mbot35\">\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-cs-12\">\n<h4 class=\"fnt_28\"><strong>The Final Output<\/strong><\/h4>\n<p>Zhrnieme len najd\u00f4le\u017eitej\u0161ie pr\u00ednosy fy. MWTC do moderniz\u00e1cie\u00a0 SV vysiela\u010da \u010ci\u017eatice.<\/p>\n<ul class=\"case_study_list\">\n<li style=\"list-style-type: none;\">\n<ul class=\"case_study_list\">\n<li><i class=\"fa fa-hand-o-right\" aria-hidden=\"true\"><\/i>Vyrie\u0161ili sme probl\u00e9m s vytvoren\u00edm referencie a s vysokofrekven\u010dnou a n\u00edzkofrekven\u010dnou zemou<\/li>\n<li><i class=\"fa fa-hand-o-right\" aria-hidden=\"true\"><\/i>Minimalizovali sme s\u00fahlasn\u00e9 pr\u00fady (common mode) te\u010d\u00face po opleteniach vodi\u010dov do vysiela\u010da<\/li>\n<li><i class=\"fa fa-hand-o-right\" aria-hidden=\"true\"><\/i>Lokalizovali sme poruchu a vysok\u00fd zemn\u00fd odpor v bleskozvodovej s\u00fastave. Po oprave odpor klesol z hodnoty 22 Ohm na 0.004 Ohm<\/li>\n<li><i class=\"fa fa-hand-o-right\" aria-hidden=\"true\"><\/i>Navrhli, vypo\u010d\u00edtali a namontovali sme L \u010dl\u00e1nok vhodn\u00fd k dan\u00fdm rozdielom impedanci\u00ed &#8211; koaxi\u00e1l \/ monop\u00f3l<\/li>\n<li><i class=\"fa fa-hand-o-right\" aria-hidden=\"true\"><\/i>Navrhni sme, vypo\u010d\u00edtali a laborat\u00f3rne odsk\u00fa\u0161ali prep\u00e4\u0165ov\u00fa ochranu vysiela\u010da<\/li>\n<li><i class=\"fa fa-hand-o-right\" aria-hidden=\"true\"><\/i>Nastavili sme PSV bl\u00edzke hodnote 1, z 5kW vysielacieho (dopredn\u00e9ho) v\u00fdkonu sa vracia 1 W<\/li>\n<li><i class=\"fa fa-hand-o-right\" aria-hidden=\"true\"><\/i>Zmerali a overili sme v\u0161etky d\u00f4le\u017eit\u00e9 parametre vysiela\u010da pri pripojen\u00ed do prev\u00e1dzky a mesiac po jeho nepretr\u017eitej \u010dinnosti<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n<div class=\"col-lg-12 col-md-12 col-sm-12 col-cs-12\"><\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":5729,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"portfolio_category":[42],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-5207","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-vysielace"],"_links":{"self":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/avada_portfolio\/5207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/avada_portfolio"}],"about":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/types\/avada_portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/comments?post=5207"}],"version-history":[{"count":8,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/avada_portfolio\/5207\/revisions"}],"predecessor-version":[{"id":5226,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/avada_portfolio\/5207\/revisions\/5226"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/media\/5729"}],"wp:attachment":[{"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/media?parent=5207"}],"wp:term":[{"taxonomy":"portfolio_category","embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/portfolio_category?post=5207"},{"taxonomy":"portfolio_skills","embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/portfolio_skills?post=5207"},{"taxonomy":"portfolio_tags","embeddable":true,"href":"https:\/\/www.mwtc.tech\/index.php\/wp-json\/wp\/v2\/portfolio_tags?post=5207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}