{"id":58534,"date":"2021-05-31T17:11:34","date_gmt":"2021-05-31T11:41:34","guid":{"rendered":"http:\/\/eie.eng.ruh.ac.lk\/dmena\/?post_type=dt_portfolio&#038;p=58534"},"modified":"2021-05-31T17:15:36","modified_gmt":"2021-05-31T11:45:36","slug":"smart-meters-for-monitoring-power-quality-in-distribution-grids","status":"publish","type":"dt_portfolio","link":"https:\/\/www.eng.ruh.ac.lk\/dmena\/project\/smart-meters-for-monitoring-power-quality-in-distribution-grids\/","title":{"rendered":"Smart Meters for Monitoring Power Quality in Distribution Grids"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1584702595643{padding-bottom: 20px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893353553{padding-bottom: 50px !important;}&#8221;]<div id=\"ultimate-heading-98669d4dbc773bfc\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-98669d4dbc773bfc uvc-4641  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"left\" style=\"text-align:left\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-98669d4dbc773bfc h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"font-weight:bold;margin-bottom:30px;\">SMART METERS FOR MONITORING POWER QUALITY IN DISTRIBUTION GRIDS<\/h3><\/div><\/div>[vc_column_text css=&#8221;.vc_custom_1622460042103{margin-bottom: 30px !important;border-left-width: 3px !important;padding-left: 20px !important;border-left-color: rgba(0,0,0,0.1) !important;border-left-style: solid !important;}&#8221;]<span style=\"font-weight: 400;\">D.S.De Silva, Eranda W.R, Kudahetti R.M,Madusanka A.W.A.V,<\/span><span style=\"font-weight: 400;\"> K.M.I.U. Ranaweera<\/span>[\/vc_column_text][vc_column_text]<span style=\"font-weight: 400;\">Power quality (PQ) in the distribution grid has to be maintained within the standard limits set by the regulatory bodies in the country since poor PQ causes problems to the end customers like equipment damages, high expenditure cost in industrial sector etc. Power quality can be defined as a steady supply which has a pure sinusoidal wave. Present world is moving towards distribution generation. Due to expansion of renewable energy-based generation (REG) and electric vehicle charging stations (EVCS) in Sri Lanka, introduce PQ disturbances like voltage variations for long time and short time durations, harmonics, flickers, power interruptions etc. To take necessary actions to overcome these PQ issues, continuous monitoring is essential. There are PQ monitoring devices which are expensive but continuous monitoring cannot be achieved.<\/span><\/p>\n<p>Key Words:Power Quality,REG,THD<br \/>\n[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893349347{padding-bottom: 50px !important;}&#8221;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">.shortcode-single-image-wrap.shortcode-single-image-35a583470a3f5a670f61241d116463b0.enable-bg-rollover .rollover i,\n.shortcode-single-image-wrap.shortcode-single-image-35a583470a3f5a670f61241d116463b0.enable-bg-rollover .rollover-video i {\n  background: -webkit-linear-gradient();\n  background: linear-gradient();\n}\n.shortcode-single-image-wrap.shortcode-single-image-35a583470a3f5a670f61241d116463b0 .rollover-icon {\n  font-size: 32px;\n  color: #ffffff;\n  min-width: 44px;\n  min-height: 44px;\n  line-height: 44px;\n  border-radius: 100px;\n  border-style: solid;\n  border-width: 0px;\n}\n.dt-icon-bg-on.shortcode-single-image-wrap.shortcode-single-image-35a583470a3f5a670f61241d116463b0 .rollover-icon {\n  background: rgba(255,255,255,0.3);\n  box-shadow: none;\n}\n<\/style><div class=\"shortcode-single-image-wrap shortcode-single-image-35a583470a3f5a670f61241d116463b0 alignnone  enable-bg-rollover dt-icon-bg-off\" style=\"margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; width:800px;\"><div class=\"shortcode-single-image\"><div class=\"fancy-media-wrap  layzr-bg\" style=\"\"><img class=\"preload-me lazy-load aspect\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#39;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#39;%20viewBox%3D&#39;0%200%20252%20252&#39;%2F%3E\" data-src=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2021\/05\/Samanp1-252x252.png\" data-srcset=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2021\/05\/Samanp1-252x252.png 252w\" loading=\"eager\" sizes=\"(max-width: 252px) 100vw, 252px\" width=\"252\" height=\"252\"  data-dt-location=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/project\/smart-meters-for-monitoring-power-quality-in-distribution-grids\/samanp1\/\" style=\"--ratio: 252 \/ 252;\" alt=\"\" \/><\/div><\/div><\/div>[\/vc_column][vc_column]<div id=\"ultimate-heading-876669d4dbc775b37\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-876669d4dbc775b37 uvc-5235  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-876669d4dbc775b37 h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;\">Overview<\/h3><\/div><\/div>[vc_column_text]<span style=\"font-weight: 400;\">In Sri Lanka, there is no any method to perform real time PQ monitoring in the distribution grid. In this project we have developed a new system which can perform real time PQ monitoring in the distribution grid. A smart meter is developed to acquire grid parameters to monitor PQ. Those measured data are transmitted to a central station (relevant grid substation) by using cloud-based technology. Then real time PQ monitoring can be done through the graphical user interface (GUI) by the utility. GUI is developed by using MATLAB and composes with the functions to monitor PQ indices like, overvoltage and undervoltage conditions of three phases, current and THD value exceeding, power factor and phase unbalance of the end user. Real power and reactive power consumption, rms values of voltage and current monitoring are also capable through the GUI. A mobile app is also developed by using Android Studio 2.2.3 to monitor PQ. When exceeding the limits of PQ parameters, a SMS alert is received to the mobile phone of the operator. Then he\/she can monitor the system by using the mobile app. Both of these monitoring methods are used by the utility in order to perform real time monitoring. This proposed smart meter is capable of measuring PQ indexes like total harmonic distortion, voltage, current and frequency variations and power factor. This system costs around Rs. 50000 and also has the ability to perform real time PQ monitoring and observe past records.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Project Contacts: saman@eie.ruh.ac.lk<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row&#8221; bg_type=&#8221;image&#8221; bg_override=&#8221;ex-full&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1572893362996{padding-bottom: 70px !important;}&#8221;][vc_column offset=&#8221;vc_col-lg-offset-0 vc_col-lg-12 vc_col-md-offset-0 vc_col-md-12&#8243;]<style type=\"text\/css\" data-type=\"the7_shortcodes-inline-css\">.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a {\n  width: 36px;\n  height: 36px;\n  border-radius: 500px;\n}\n.dt-arrow-border-on.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a:not(:hover):before {\n  border-width: 0px;\n}\n.dt-arrow-hover-border-on.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a:hover:after {\n  border-width: 0px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a.owl-prev {\n  top: 50%;\n  transform: translateY(calc(-50% + 0px));\n  left: -43px;\n}\n@media all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a.owl-prev {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a.owl-prev i {\n  padding: 0px 0px 0px 0px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a.owl-next {\n  top: 50%;\n  transform: translateY(calc(-50% + 0px));\n  right: -43px;\n}\n@media all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a.owl-next {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a.owl-next i {\n  padding: 0px 0px 0px 0px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav i {\n  font-size: 16px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a:not(:hover) i,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a:not(:hover) i:before {\n  color: #ffffff;\n  background: none;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a:hover i,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-nav a:hover i:before {\n  color: rgba(255,255,255,0.75);\n  background: none;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-dots {\n  top: calc(100% + 20px);\n  left: 50%;\n  transform: translateX(calc(-50% + 0px));\n}\n@media all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-dots {\n    transform: translateX(-50%);\n    margin-left: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .owl-dot {\n  width: 10px;\n  height: 10px;\n  margin: 0 8px;\n}\n@media screen and (max-width: 778px) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.hide-arrows .owl-nav a {\n    display: none;\n  }\n}\n@media screen and (max-width: 778px) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.reposition-arrows .owl-nav .owl-prev {\n    top: 50%;\n    transform: translateY(calc(-50% + 0px));\n    left: 10px;\n  }\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.reposition-arrows .owl-nav .owl-next {\n    top: 50%;\n    transform: translateY(calc(-50% + 0px));\n    right: 10px;\n  }\n}\n@media screen and (max-width: 778px) and all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.reposition-arrows .owl-nav .owl-prev {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n@media screen and (max-width: 778px) and all and (-ms-high-contrast: none) {\n  .gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.reposition-arrows .owl-nav .owl-next {\n    transform: translateY(-50%);\n    margin-top: 0px;\n  }\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 figure,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .rollover,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 img,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 .gallery-rollover {\n  border-radius: 0px;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.enable-bg-rollover .gallery-rollover {\n  background: rgba(0,0,0,0.5);\n  box-shadow: none;\n  background: -webkit-linear-gradient();\n  background: linear-gradient();\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.enable-img-shadow .owl-stage-outer {\n  padding: 34px 0;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.enable-bg-rollover.hover-scale figure .rollover:after {\n  background: rgba(0,0,0,0.5);\n  box-shadow: none;\n  background: -webkit-linear-gradient();\n  background: linear-gradient();\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.gallery-shortcode .gallery-zoom-ico {\n  width: 44px;\n  height: 44px;\n  line-height: 44px;\n  border-radius: 100px;\n  margin: -22px 0 0 -22px;\n  border-width: 0px;\n}\n.dt-icon-bg-on.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.gallery-shortcode .gallery-zoom-ico {\n  background: rgba(255,255,255,0.3);\n  box-shadow: none;\n}\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.gallery-shortcode .gallery-zoom-ico:before,\n.gallery-carousel-shortcode.gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9.gallery-shortcode .gallery-zoom-ico span {\n  font-size: 32px;\n  line-height: 44px;\n  color: #ffffff;\n  background: none;\n}\n<\/style><div class=\"owl-carousel gallery-carousel-shortcode gallery-shortcode  dt-gallery-container dt-owl-carousel-call gallery-carousel-shortcode-id-6a5502fda39e9b7ec7dd90ff11bff1b9 quick-scale-img enable-bg-rollover meta-info-off dt-arrow-border-on dt-arrow-hover-border-on bullets-small-dot-stroke reposition-arrows dt-icon-bg-off arrows-bg-on disable-arrows-hover-bg arrows-hover-bg-on  hover-fade \" data-scroll-mode=\"1\" data-col-num=\"3\" data-wide-col-num=\"3\" data-laptop-col=\"3\" data-h-tablet-columns-num=\"3\" data-v-tablet-columns-num=\"2\" data-phone-columns-num=\"1\" data-col-gap=\"30\" data-stage-padding=\"0\" data-speed=\"800\" data-autoplay=\"false\" data-autoplay_speed=\"6000\" data-arrows=\"true\" data-bullet=\"false\" data-next-icon=\"icon-ar-017-r\" data-prev-icon=\"icon-ar-017-l\" data-img-shadow-size=\"12px\" data-img-shadow-spread=\"3px\"><div data-post-id=\"58537\" data-date=\"2021-05-31T17:09:12+05:30\" data-name=\"samanP1_2\"><figure class=\"post\"><a href=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2021\/05\/samanP1_2.png\" class=\"rollover dt-pswp-item layzr-bg\" data-large_image_width=\"555\" data-large_image_height=\"378\" data-dt-img-description=\"\" title=\"samanP1_2\"><img class=\"preload-me owl-lazy-load aspect\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#39;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#39;%20viewBox%3D&#39;0%200%20283%20377&#39;%2F%3E\" data-src=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2021\/05\/samanP1_2-283x377.png\" data-srcset=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2021\/05\/samanP1_2-283x377.png 283w, https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2021\/05\/samanP1_2-283x378.png 283w\" loading=\"eager\" style=\"--ratio: 283 \/ 377\" sizes=\"(max-width: 283px) 100vw, 283px\" alt=\"\" width=\"283\" height=\"377\"  \/><span class=\"gallery-rollover\"><span class=\"gallery-zoom-ico icomoon-the7-font-the7-zoom-06\"><span><\/span><\/span><\/span><\/a><\/figure><\/div><div data-post-id=\"58538\" data-date=\"2021-05-31T17:09:16+05:30\" data-name=\"Samanp1\"><figure class=\"post\"><a href=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2021\/05\/Samanp1.png\" class=\"rollover dt-pswp-item layzr-bg\" data-large_image_width=\"524\" data-large_image_height=\"252\" data-dt-img-description=\"\" title=\"Samanp1\"><img class=\"preload-me owl-lazy-load aspect\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#39;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#39;%20viewBox%3D&#39;0%200%20189%20252&#39;%2F%3E\" data-src=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2021\/05\/Samanp1-189x252.png\" data-srcset=\"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-content\/uploads\/2021\/05\/Samanp1-189x252.png 189w\" loading=\"eager\" style=\"--ratio: 189 \/ 252\" sizes=\"(max-width: 189px) 100vw, 189px\" alt=\"\" width=\"189\" height=\"252\"  \/><span class=\"gallery-rollover\"><span class=\"gallery-zoom-ico icomoon-the7-font-the7-zoom-06\"><span><\/span><\/span><\/span><\/a><\/figure><\/div><\/div>[\/vc_column][\/vc_row][vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; el_class=&#8221;reverse-row-on-mobile&#8221; css=&#8221;.vc_custom_1572893387563{margin-bottom: -40px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893376547{padding-bottom: 20px !important;}&#8221;][\/vc_column][vc_column]<div id=\"ultimate-heading-219969d4dbc77882f\" class=\"uvc-heading ult-adjust-bottom-margin ultimate-heading-219969d4dbc77882f uvc-3871  uvc-heading-default-font-sizes\" data-hspacer=\"no_spacer\"  data-halign=\"center\" style=\"text-align:center\"><div class=\"uvc-heading-spacer no_spacer\" style=\"top\"><\/div><div class=\"uvc-main-heading ult-responsive\"  data-ultimate-target='.uvc-heading.ultimate-heading-219969d4dbc77882f h3'  data-responsive-json-new='{\"font-size\":\"\",\"line-height\":\"\"}' ><h3 style=\"--font-weight:theme;\">Publications<\/h3><\/div><\/div><div class=\"standard-arrow list-divider bullet-top\"><ul>\n<li><span style=\"font-weight: 400;\">Real-Time Power Quality Monitoring System for Distribution Grid, D.S. De Silva,(Ms.) R.M. Kudahetti, W.R. Eranda, A.W.A.V. Madusanka, and K.M.I.U. Ranaweera, IESL <\/span><span style=\"font-weight: 400;\">transactions 2019-part-B technical papers page<\/span><span style=\"font-weight: 400;\"> 207-213<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Real-Time Power Quality Monitoring System for Distribution Grid, D.S. De Silva,(Ms.) R.M. Kudahetti, W.R. Eranda, A.W.A.V. Madusanka, and K.M.I.U. Ranaweera, present around the world 2019, IET annual Technical Conference papers page 37-42<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Smart meters for Monitoring Power Quality in Distribution Grid, D.S. De Silva,(Ms.) R.M. Kudahetti, W.R. Eranda, A.W.A.V. Madusanka, and K.M.I.U. Ranaweera, Poster presented in 16th academic session of university of Ruhuna,6th March,2019.<\/span><\/li>\n<\/ul>\n<\/div>[\/vc_column][vc_column][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221; type=&#8221;vc_default&#8221; css=&#8221;.vc_custom_1584702595643{padding-bottom: 20px !important;}&#8221;][vc_column width=&#8221;1\/2&#8243; css=&#8221;.vc_custom_1572893353553{padding-bottom: 50px !important;}&#8221;][vc_column_text css=&#8221;.vc_custom_1622460042103{margin-bottom: 30px !important;border-left-width: 3px !important;padding-left: 20px !important;border-left-color: rgba(0,0,0,0.1) !important;border-left-style: solid !important;}&#8221;]D.S.De Silva, Eranda W.R, Kudahetti R.M,Madusanka A.W.A.V, K.M.I.U. Ranaweera[\/vc_column_text][vc_column_text]Power quality (PQ) in the distribution grid has to be maintained within the standard limits set by the regulatory bodies in the country since poor PQ&hellip;<\/p>\n","protected":false},"author":13,"featured_media":58537,"comment_status":"closed","ping_status":"closed","template":"","dt_portfolio_category":[99,106,120],"dt_portfolio_tags":[],"_links":{"self":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio\/58534"}],"collection":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio"}],"about":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/types\/dt_portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/comments?post=58534"}],"version-history":[{"count":4,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio\/58534\/revisions"}],"predecessor-version":[{"id":58541,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio\/58534\/revisions\/58541"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/media\/58537"}],"wp:attachment":[{"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/media?parent=58534"}],"wp:term":[{"taxonomy":"dt_portfolio_category","embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio_category?post=58534"},{"taxonomy":"dt_portfolio_tags","embeddable":true,"href":"https:\/\/www.eng.ruh.ac.lk\/dmena\/wp-json\/wp\/v2\/dt_portfolio_tags?post=58534"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}