{"id":5469,"date":"2022-02-25T14:58:53","date_gmt":"2022-02-25T13:58:53","guid":{"rendered":"http:\/\/en.testnordic.com\/?post_type=product&#038;p=5469"},"modified":"2025-03-23T18:39:01","modified_gmt":"2025-03-23T17:39:01","slug":"winding-resistance-meters-tap-changer-analyzers","status":"publish","type":"product","link":"https:\/\/testnordic.se\/en\/product\/winding-resistance-meters-tap-changer-analyzers\/","title":{"rendered":"Winding Resistance Meters"},"content":{"rendered":"<p>DV Power <strong>winding resistance meters<\/strong> provide high test currents (up to 100 A DC) and high accuracy (up to 0.1%) within light and portable test instruments. In addition to winding resistance measurement, it is also possible to perform simple, quick and reliable transformer on-load tap changer condition assessment by recording the test current during tap changer operation, also known as DVtest. Because of that, problems with a tap changer connection, contacts, and switching procedure can be detected.<\/p>\n<p>DV Power winding ohmmeters consist of single-phase RMO-T and three-phase TWA series winding resistance meters. Models from the TWA series are designed for six-winding resistance measurement of power and distribution transformers, with only one single-step cable setup. As a result of reducing the total test time, it enables significant saving of time and money.<\/p>\n<p>Typical application areas of these instruments are high-voltage substations and industrial environments. They are intended to measure the resistance of:<\/p>\n<ul>\n<li><strong>Transformer windings<\/strong><\/li>\n<li><strong>On-load tap changers<\/strong><\/li>\n<li><strong>Generators<\/strong><\/li>\n<li><strong>Electrical motors<\/strong><\/li>\n<li><strong>High-current bus bar joints<\/strong><\/li>\n<li><strong>Cable splices<\/strong><\/li>\n<li><strong>Welding joints<\/strong><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Brochure<\/strong><\/p>\n<div class='w3eden'><!-- WPDM Link Template: Default Template -->\n\n<div class=\"link-template-default card mb-2\">\n    <div class=\"card-body\">\n        <div class=\"media\">\n            <div class=\"mr-3 img-48\"><img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"http:\/\/testnordic.com\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/><\/div>\n            <div class=\"media-body\">\n                <h3 class=\"package-title\"><a href='https:\/\/testnordic.se\/en\/download\/rmo-tw-series-3\/'>RMO-TW series<\/a><\/h3>\n                <div class=\"text-muted text-small\"><i class=\"fas fa-copy\"><\/i> 1 file(s) <i class=\"fas fa-hdd ml-3\"><\/i> 457.56 KB<\/div>\n            <\/div>\n            <div class=\"ml-3\">\n                <a class='wpdm-download-link download-on-click btn btn-primary ' rel='nofollow' href='#' data-downloadurl=\"https:\/\/testnordic.se\/en\/download\/rmo-tw-series-3\/?wpdmdl=6657&refresh=6a7329499384b1785932105\">Download<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/div>\n\n<div class='w3eden'><!-- WPDM Link Template: Default Template -->\n\n<div class=\"link-template-default card mb-2\">\n    <div class=\"card-body\">\n        <div class=\"media\">\n            <div class=\"mr-3 img-48\"><img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\"   src=\"http:\/\/testnordic.com\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.png\" \/><\/div>\n            <div class=\"media-body\">\n                <h3 class=\"package-title\"><a href='https:\/\/testnordic.se\/en\/download\/using-the-most-advanced-switch-mode-technology-available-today-the-rmo-td-series-is-ideal-for-winding-resistance-measurements-of-inductive-objects\/'>RMO-TD series<\/a><\/h3>\n                <div class=\"text-muted text-small\"><i class=\"fas fa-copy\"><\/i> 1 file(s) <i class=\"fas fa-hdd ml-3\"><\/i> 687.36 KB<\/div>\n            <\/div>\n            <div class=\"ml-3\">\n                <a class='wpdm-download-link download-on-click btn btn-primary ' rel='nofollow' href='#' data-downloadurl=\"https:\/\/testnordic.se\/en\/download\/using-the-most-advanced-switch-mode-technology-available-today-the-rmo-td-series-is-ideal-for-winding-resistance-measurements-of-inductive-objects\/?wpdmdl=5754&refresh=6a73294996a2e1785932105\">Download<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/div>\n<div class='w3eden'><!-- WPDM Link Template: Default Template -->\n\n<div class=\"link-template-default card mb-2\">\n    <div class=\"card-body\">\n        <div class=\"media\">\n            <div class=\"mr-3 img-48\"><img decoding=\"async\" class=\"wpdm_icon\" alt=\"Icon\" src=\"https:\/\/testnordic.se\/wp-content\/plugins\/download-manager\/assets\/file-type-icons\/pdf.svg\" \/><\/div>\n            <div class=\"media-body\">\n                <h3 class=\"package-title\"><a href='https:\/\/testnordic.se\/en\/download\/datasheet-rmo-th\/'>Datasheet RMO-TH<\/a><\/h3>\n                <div class=\"text-muted text-small\"><i class=\"fas fa-copy\"><\/i> 1 file(s) <i class=\"fas fa-hdd ml-3\"><\/i> 467.33 KB<\/div>\n            <\/div>\n            <div class=\"ml-3\">\n                <a class='wpdm-download-link download-on-click btn btn-primary ' rel='nofollow' href='#' data-downloadurl=\"https:\/\/testnordic.se\/en\/download\/datasheet-rmo-th\/?wpdmdl=10338&refresh=6a732949982a61785932105\">Download<\/a>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Winding resistance test of inductive test objects, such as power transformers, is one of the most effective non-intrusive ways of checking its condition. Due to their advanced design.<\/p>\n","protected":false},"featured_media":10175,"template":"","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[],"product_cat":[302,304],"product_tag":[],"yst_prominent_words":[],"class_list":{"0":"post-5469","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-transformer-testing","7":"product_cat-winding-resistance-winding-ohmmeter","9":"first","10":"instock","11":"taxable","12":"shipping-taxable","13":"product-type-simple","14":"entry","15":"content-bg","16":"loop-entry"},"_links":{"self":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product\/5469","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":2,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product\/5469\/revisions"}],"predecessor-version":[{"id":13013,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product\/5469\/revisions\/13013"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/media\/10175"}],"wp:attachment":[{"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/media?parent=5469"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product_brand?post=5469"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product_cat?post=5469"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/product_tag?post=5469"},{"taxonomy":"yst_prominent_words","embeddable":true,"href":"https:\/\/testnordic.se\/en\/wp-json\/wp\/v2\/yst_prominent_words?post=5469"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}