1.0Kỹ thuật điện Trần Lêhttps://e-tranle.vn/en/rich600338<blockquote class="wp-embedded-content" data-secret="y2U1nynUGz"><a href="https://e-tranle.vn/en/limit-harmonics-improve-grid-quality/">Limit harmonics – Improve grid quality</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://e-tranle.vn/en/limit-harmonics-improve-grid-quality/embed/#?secret=y2U1nynUGz" width="600" height="338" title="“Limit harmonics – Improve grid quality” — Kỹ thuật điện Trần Lê" data-secret="y2U1nynUGz" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! This file is auto-generated */ !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); //# sourceURL=https://e-tranle.vn/wp-includes/js/wp-embed.min.js /* ]]> */ </script> https://e-tranle.vn/wp-content/uploads/2021/10/Song-hai-trong-he-thong-dien-300x200-1.png300200What are harmonics? Harmonic is an unwanted interference that directly affects the quality of the power grid and should be taken into account when the total harmonic currents are higher than the allowable limit. Harmonic current is a current whose […]