{"id":10793,"date":"2023-09-12T14:32:18","date_gmt":"2023-09-12T12:32:18","guid":{"rendered":"https:\/\/dv-group.com\/etudes-de-cas\/reparation-et-fiabilisation-de-variateurs\/"},"modified":"2023-09-18T16:45:37","modified_gmt":"2023-09-18T14:45:37","slug":"reparation-et-fiabilisation-de-variateurs","status":"publish","type":"etudes-de-cas","link":"https:\/\/dv-group.com\/nl\/etudes-de-cas\/reparation-et-fiabilisation-de-variateurs\/","title":{"rendered":"Repair and reliability of drives"},"content":{"rendered":"
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Client expectation<\/h4>\n

A producer of plastic wrapping for packaging based in the Netherlands was looking for a partner to repair and safeguard its variators. Indeed, their pool included many obsolete Simoreg K machines composed of parts which are now difficult to find and are no longer supported by their manufacturer. The producer wished to work with a partner offering quality and long-term repair solutions in order to be totally trouble-free regarding the state of their machine pool and thus safeguard production, but above all a partner offering all-encompassing test protocols perfectly adapted to their process.<\/p>\n <\/div>\n <\/div>\n<\/section>\n\n

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DV GROUP solution<\/h4>\n

Satisfied with our quality of service during a first collaboration on three strategic variators, our client chose to entrust us exclusively with the repair of their obsolete variators. Since 2015, we have processed 121 Siemens Simoreg K modules from 5.7kW to 252kW in our Douvrin workshop.<\/p>\n <\/div>\n <\/div>\n<\/section>\n\n

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Work carried out<\/strong><\/p>\n

DV GROUP technical solution:<\/p>\n

In order to safeguard its production line, our client works via a system of stock rotation. In this way, in the case of a breakdown on the line, the variators stock was used while we repaired and safeguarded the obsolete modules.<\/p>\n

The experts from our electronics agency in Douvrin undertook the repair and full upgrading of the variators:<\/p>\n

An overall check of the product: rust, pollution, plastics processing, chassis, settings etc.<\/p>\n

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  • Replacements:<\/li>\n
  • Of the power components<\/li>\n
  • Of the ventilators<\/li>\n
  • Of the relays, auxiliaries<\/li>\n
  • Of the electro-chemical capacitors<\/li>\n
  • Of the thermal grease, in order to ensure correct cooling of the module<\/li>\n
  • On the 6RA2216: systematic replacement of the thyristors<\/li>\n<\/ul>\n

     <\/p>\n

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    • Checks and tests:<\/li>\n
    • Of the low-level supplies (+24 + 10)<\/li>\n
    • Of the current balances on the entry phases<\/li>\n
    • Of the motor current<\/li>\n
    • Of the excitation current<\/li>\n
    • Of the excitation regulator (deexcitation)<\/li>\n
    • Of the thyristor openings<\/li>\n
    • Of the 4 quadrants (motor \/ generator) operation<\/li>\n
    • Of the closed-loop\/open-loop operation<\/li>\n
    • Of the command logic<\/li>\n
    • Of the analogue reference and analogue feedback<\/li>\n
    • On the digital variators: verification of accessibility and safeguarding of the settings<\/li>\n
    • Of the current reading<\/li>\n
    • Of the ventilator and turbine (rotation, noise, vibration, direction)<\/li>\n<\/ul>\n

      Following all these services, the variator underwent a 12-hour dynamic load test and counter-measuring with a robot in order to guarantee the product\u2019s operation.<\/p>\n

      For the 6RA2216, our experts implemented a specific test procedure in order to be perfectly in compliance with the client\u2019s configuration.<\/p>\n

      Lastly, we carried out the final logistical checks (cleanliness, condition or the terminals, plastification etc.) before sending the products to our client.<\/p>\n <\/div>\n <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"featured_media":2440,"template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"Repair and reliability of drives","_seopress_titles_desc":"A Netherlands-based plastic packaging manufacturer was looking for a partner to repair and secure its frequency converters","_seopress_robots_index":""},"pays":[209],"category-cs":[210],"secteurs-activites":[215],"solutions":[230],"class_list":["post-10793","etudes-de-cas","type-etudes-de-cas","status-publish","has-post-thumbnail","hentry","pays-nederland","category-cs-maintenance-nl","secteurs-activites-hout-papier-karton-drukkerijen","solutions-elektronica"],"acf":[],"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/dv-group.com\/nl\/wp-json\/wp\/v2\/etudes-de-cas\/10793","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dv-group.com\/nl\/wp-json\/wp\/v2\/etudes-de-cas"}],"about":[{"href":"https:\/\/dv-group.com\/nl\/wp-json\/wp\/v2\/types\/etudes-de-cas"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dv-group.com\/nl\/wp-json\/wp\/v2\/media\/2440"}],"wp:attachment":[{"href":"https:\/\/dv-group.com\/nl\/wp-json\/wp\/v2\/media?parent=10793"}],"wp:term":[{"taxonomy":"pays","embeddable":true,"href":"https:\/\/dv-group.com\/nl\/wp-json\/wp\/v2\/pays?post=10793"},{"taxonomy":"category-cs","embeddable":true,"href":"https:\/\/dv-group.com\/nl\/wp-json\/wp\/v2\/category-cs?post=10793"},{"taxonomy":"secteurs-activites","embeddable":true,"href":"https:\/\/dv-group.com\/nl\/wp-json\/wp\/v2\/secteurs-activites?post=10793"},{"taxonomy":"solutions","embeddable":true,"href":"https:\/\/dv-group.com\/nl\/wp-json\/wp\/v2\/solutions?post=10793"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}