{"id":4356,"date":"2026-10-16T05:29:25","date_gmt":"2026-10-16T05:29:25","guid":{"rendered":"https:\/\/acrel.pl\/?post_type=product&#038;p=4356"},"modified":"2026-10-16T05:29:31","modified_gmt":"2026-10-16T05:29:31","slug":"apd300-l-wired-partial-discharge-sensor","status":"publish","type":"product","link":"https:\/\/acrel.pl\/pl\/product\/apd300-l-wired-partial-discharge-sensor\/","title":{"rendered":"APD300-L Wired Partial Discharge Sensor"},"content":{"rendered":"<!-- wp:heading -->\n<h2 class=\"wp-block-heading\"><strong>General<\/strong><\/h2>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>APD series high-voltage switchgear partial discharge monitoring device detects the electromagnetic wave radiation generated along with partial discharge and automatically determines the actual detection frequency of on-site partial discharge. Then, data such as the number and frequency of partial discharge detected are uploaded to the server.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\">Technical Parameter<\/h2>\n<!-- \/wp:heading -->\n\n<!-- wp:table -->\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"3\"><strong>Parameters<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>APD300-L<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><strong>APD300-W<\/strong><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"3\">Power<\/td><td class=\"has-text-align-center\" data-align=\"center\">DC 12-36V<\/td><td class=\"has-text-align-center\" data-align=\"center\">Battery<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"3\">Battery life<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2014<\/td><td class=\"has-text-align-center\" data-align=\"center\">3-4years, replaceable (Model 2ER18505M)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"3\">Communication<\/td><td class=\"has-text-align-center\" data-align=\"center\">RS485 (MODBUS-RTU )<\/td><td class=\"has-text-align-center\" data-align=\"center\">Lora<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"3\">Sampling<\/td><td class=\"has-text-align-center\" data-align=\"center\">4s<\/td><td class=\"has-text-align-center\" data-align=\"center\">2h<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" rowspan=\"10\">PD monitoring sensors<\/td><td class=\"has-text-align-center\" data-align=\"center\" rowspan=\"2\">AE<\/td><td class=\"has-text-align-center\" data-align=\"center\">Measuring range<\/td><td class=\"has-text-align-center\" data-align=\"center\">0~60dBuV<\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Resonant frequency<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">40kHZ+1KHZ<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" rowspan=\"2\">TEV<\/td><td class=\"has-text-align-center\" data-align=\"center\">Measuring range<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">0-60dBmV<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Bandwidth<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">3MHZ~100MHZ<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" rowspan=\"3\">UHF<\/td><td class=\"has-text-align-center\" data-align=\"center\">Measuring range<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">-70~10dBm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Bandwidth<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">300MHz-1500MHZ<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Average equivalent height<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">\u226510mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" rowspan=\"3\">Environment<\/td><td class=\"has-text-align-center\" data-align=\"center\">Noise measuring range<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">30dB~130dB<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Temp measuring range<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">-40\u2103~85\u00b0C<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Humidity measuring range<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">0~100%RH<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\" rowspan=\"2\">Usage environment<\/td><td class=\"has-text-align-center\" data-align=\"center\">Temperature<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">-40\u2103~85\u00b0C<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Relative humidity<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">\u226495%RH<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">Size<\/td><td class=\"has-text-align-center\" data-align=\"center\">Terminal form factor<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">135mm*100mm*42mm<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">Installation<\/td><td class=\"has-text-align-center\" data-align=\"center\">Installation<\/td><td class=\"has-text-align-center\" data-align=\"center\" colspan=\"2\">Magnetic<\/td><\/tr><\/tbody><\/table><\/figure>\n<!-- \/wp:table -->\n\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\"><strong>Dimension &amp; Installation<\/strong><\/h2>\n<!-- \/wp:heading -->\n\n<!-- wp:paragraph -->\n<p>APD300-L triple-in-one wired partal discharge sensor adopts a strong magnetic adsorpton mounting method and is installed on the cabinetwall in the cable compartment of the switchgear, The detailed dimensions of the product are shown in the figure, in mm.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:image {\"id\":4365,\"width\":\"500px\",\"height\":\"auto\",\"aspectRatio\":\"1.037344398340249\",\"align\":\"center\"} -->\n<figure class=\"wp-block-image aligncenter is-resized\"><img src=\"https:\/\/acrel.pl\/wp-content\/uploads\/2026\/10\/20250619010828_18932.png\" alt=\"\" class=\"wp-image-4365\" style=\"aspect-ratio:1.037344398340249;width:500px;height:auto\" title=\"\"\/><figcaption class=\"wp-element-caption\"><strong>APD300-L Dimension<\/strong><\/figcaption><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:image {\"id\":4363,\"align\":\"center\"} -->\n<figure class=\"wp-block-image aligncenter\"><img src=\"https:\/\/acrel.pl\/wp-content\/uploads\/2026\/10\/20250619010858_12099.jpg\" alt=\"\" class=\"wp-image-4363\"\/><figcaption class=\"wp-element-caption\"><strong>APD300-L triple-in-one wired partial discharge sensor<\/strong><\/figcaption><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:paragraph -->\n<p>APD300-W triple-in-one wireless partial discharge sensor adopts a high-strength magnetic mounting system, installed on the external doorpanels of either the circuit breaker compartment or cable compartment in each switchgear unit, without the need for high voltage power outageThe detailed dimensions of the product are shown in the figure, in mm.<\/p>\n<!-- \/wp:paragraph -->\n\n<!-- wp:image {\"id\":4362,\"width\":\"500px\",\"height\":\"auto\",\"aspectRatio\":\"1.4005602240896358\",\"align\":\"center\"} -->\n<figure class=\"wp-block-image aligncenter is-resized\"><img src=\"https:\/\/acrel.pl\/wp-content\/uploads\/2026\/10\/20250619010916_22172.png\" alt=\"\" class=\"wp-image-4362\" style=\"aspect-ratio:1.4005602240896358;width:500px;height:auto\" title=\"\"\/><figcaption class=\"wp-element-caption\"><strong>APD300-W Dimensional<\/strong><\/figcaption><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:image {\"id\":4364,\"align\":\"center\"} -->\n<figure class=\"wp-block-image aligncenter\"><img src=\"https:\/\/acrel.pl\/wp-content\/uploads\/2026\/10\/20250619011020_73646.png\" alt=\"\" class=\"wp-image-4364\"\/><figcaption class=\"wp-element-caption\"><strong>APD300-W triple-in-one wireless partial discharge sensor<\/strong><\/figcaption><\/figure>\n<!-- \/wp:image -->\n\n<!-- wp:heading -->\n<h2 class=\"wp-block-heading\"><strong>Photo on Site<\/strong><\/h2>\n<!-- \/wp:heading -->\n\n<!-- wp:image {\"id\":4361,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\n<figure class=\"wp-block-image size-full\"><img src=\"https:\/\/acrel.pl\/wp-content\/uploads\/2026\/10\/126c50ac-ecad-4a8d-a177-8155ad12ddd6.png\" alt=\"\" class=\"wp-image-4361\"\/><\/figure>\n<!-- \/wp:image -->","protected":false},"excerpt":{"rendered":"\u25cf Power: DC 12-36V\n\u25cf Measurement content: AE, TEV, UHF, Noise, Temperature, Humidity\n\u25cf AE range: 0dBuV~60dBuV\n\u25cf TEV range: 0dBmV~60dBmV\n\u25cf UHF range: -70dBm~10dBm\n\u25cf Temp range: -40\u00b0C~85\u00b0C\n\u25cf Communication: RS485 (MODBUS-RTU)\n\u25cf Installation: Magnetic","protected":false},"featured_media":4360,"template":"","productcat":[6,186],"class_list":["post-4356","product","type-product","status-publish","has-post-thumbnail","hentry","productcat-power-protection","productcat-partial-discharge-monitoring"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>APD300-L Wired Partial Discharge Sensor - ACREL<\/title>\n<meta name=\"description\" content=\"APD 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