{"id":899,"date":"2025-12-27T14:00:00","date_gmt":"2025-12-27T06:00:00","guid":{"rendered":"https:\/\/powerquality.sg\/wordpress\/?p=899"},"modified":"2025-12-30T17:43:10","modified_gmt":"2025-12-30T09:43:10","slug":"voltage-dip-23-12-2025-1139am","status":"publish","type":"post","link":"https:\/\/powerquality.sg\/wordpress\/?p=899","title":{"rendered":"Voltage Dip 23\/12\/2025 11:39AM"},"content":{"rendered":"\n

Earlier in the week, on Tuesday 23\/12\/2025 at approximately 11:39AM, a transmission level fault occurred. The East region (North-East to be exact) was affected the most, with dip-by values in the range of ~ 30%.<\/p>\n\n\n\n

Below were from some our sites in the same affected region at 22kV and LV in Changi and Bedok areas respectively.<\/p>\n\n\n\n

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When a 230kV fault occurs, a quarter of Singapore will feel the worst dip magnitude (the region where the fault occurs), with the other 3 regions observing shallow voltage dips. <\/p>\n\n\n\n

For my home\u2019s PQube3 in the west, it was a non-event, as seen below.<\/p>\n\n\n\n

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The fault originated from Malaysia\u2019s TNB network (fault on Phase L3). <\/p>\n\n\n\n

Singapore is connected to Malaysia at 230kV.<\/p>\n\n\n\n

30\/12\/2025: <\/strong>Added Additional Event Trends & Waveforms<\/p>\n\n\n\n

Location: Yishun (Voltage variation ~ 9+ %)<\/p>\n\n\n\n

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Location: Seletar (Dip of almost 30%)<\/p>\n\n\n\n

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Earlier in the week, on Tuesday 23\/12\/2025 at approximately 11:39AM, a transmission level fault occurred. The East region (North-East to be exact) was affected the most, with dip-by values in the range of ~ 30%. Below were from some our sites in the same affected region at 22kV and LV in Changi and Bedok areas […]<\/p>\n","protected":false},"author":1,"featured_media":204,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[13,10],"tags":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/powerquality.sg\/wordpress\/wp-content\/uploads\/2014\/03\/fig1-definition.png","jetpack_shortlink":"https:\/\/wp.me\/p41TEZ-ev","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/899"}],"collection":[{"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=899"}],"version-history":[{"count":8,"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/899\/revisions"}],"predecessor-version":[{"id":916,"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/899\/revisions\/916"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=\/wp\/v2\/media\/204"}],"wp:attachment":[{"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=899"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=899"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/powerquality.sg\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=899"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}