{"version":"1.0","provider_name":"LS power Transformator, die Linie Reaktor, Hohe-Spannung Transformator, \u00d6l-eingetaucht Transformator-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD","provider_url":"https:\/\/www.lstransformer.com\/de","author_name":"369703005","author_url":"https:\/\/www.lstransformer.com\/de\/author\/369703005\/","title":"What are the fault classifications of transformers? - LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"p2H1ht46r0\"><a href=\"https:\/\/www.lstransformer.com\/de\/what-are-the-fault-classifications-of-transformers\/\">What are the fault classifications of transformers?<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.lstransformer.com\/de\/what-are-the-fault-classifications-of-transformers\/embed\/#?secret=p2H1ht46r0\" width=\"600\" height=\"338\" title=\"&#8222;What are the fault classifications of transformers?&#8220; &#8211; LS power transformer, Line reactor, High-voltage transformer, Oil-immersed transformer-CHANGSHA LUSHAN ELECTRONIC TECHNOLOGY CO.,LTD\" data-secret=\"p2H1ht46r0\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.lstransformer.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>","thumbnail_url":"https:\/\/www.lstransformer.com\/wp-content\/uploads\/2026\/07\/1742021341706127.png","thumbnail_width":370,"thumbnail_height":276,"description":"Faults in oil-immersed power transformers are generally divided into two main categories: internal faults and external faults. Internal faults primarily occur within the transformer's oil tank, including phase-to-phase short circuits between winding groups, turn-to-turn short circuits between winding turns, and grounding faults caused by winding or lead wires touching the outer casing. External faults mainly occur on the external insulation bushings and lead wires of the transformer's oil tank, involving flashovers or fractures of insulation bushings leading to grounding short circuits through the outer casing and phase-to-phase faults between lead wires, which may lead to internal faults or deformation of windings."}