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In order to prevent the short circuit between the silicon steel sheets of the core from forming a loop current and causing a fault, multi-point grounding is not allowed. Under normal circumstances, the core grounding current is only at the milliampere level, but when the core has a multi-point grounding fault, the current at the grounding point can increase from several amperes to tens of amperes. In order to detect the multi-point grounding fault of the core in time and take corresponding measures, the transformer core grounding leakage current should be monitored online.<\/p>\n<p>The transformer core grounding current online monitoring system is used for online monitoring of the leakage current of the transformer core and its clamps, and obtains a high-accuracy current value, which is compared with the set alarm current value. When the measured current value is greater than or equal to the set alarm value, the monitor sends the alarm information to the receiving server in the main control room through the network or wireless mode for processing and diagnosis, and timely warning, providing a reliable technical basis for the status maintenance of such equipment.<\/p>\n<p style=\"cursor: text; color: #ff0000;\"><b>Functional features<\/b><\/p>\n<p>\u203b Adopt high-precision single-turn through-core active current sensor with excellent linearity and anti-interference ability;<\/p>\n<p>\u203b The current value of each monitoring device can be queried at any time through the monitoring server;<\/p>\n<p>\u203b When the monitoring device detects that the current exceeds the limit, it will immediately alarm and send a text message to the set mobile phone;<\/p>\n<p>\u203b The monitoring system can automatically transmit the measurement data of each node in real time;<\/p>\n<p>\u203b The monitoring system management software has the ability to analyze data in real time and store it for a long time for each monitoring point;<\/p>\n<p>\u203b The monitoring system management software has powerful data management capabilities, and automatically alarms and proposes early warning measures;<\/p>\n<p>\u203b Flexible and convenient equipment configuration parameters can be set according to user requirements;<\/p>\n<p>\u203b Easy installation, beautiful appearance, IP65 protection level, can adapt to harsh environments.<\/p>\n<\/div>\n<\/div>\n<div class=\"pro_show_3\">\n<div class=\"pro_show_3_down\">\n<table class=\"ke-zeroborder\" style=\"width: 100%;\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\">\n<colgroup>\n<col width=\"261\" \/>\n<col width=\"298\" \/> <\/colgroup>\n<tbody>\n<tr>\n<td class=\"et3\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 391.5pt; background: #9bc2e6; cursor: text;\" colspan=\"2\" width=\"522\" height=\"19\">Technical Parameters<\/td>\n<\/tr>\n<tr>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 391.5pt; background: #d9d9d9; cursor: text;\" colspan=\"2\" width=\"522\" height=\"19\">(1) HC8012M transformer core grounding current online monitoring host<\/td>\n<\/tr>\n<tr>\n<td class=\"et5\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 391.5pt; cursor: text;\" colspan=\"2\" width=\"522\" height=\"19\">In the monitoring system, it plays a connecting role. In addition to receiving the analog signal of the sensor, it also has signal conditioning, filtering and shaping, digital quantity acquisition, FFT calculation, local display and other functions, and transmits real-time monitoring data to the server through the RS485 network.<\/td>\n<\/tr>\n<tr>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 195.75pt; background: #d9d9d9; cursor: text;\" width=\"261\" height=\"19\">Collection Node<\/td>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 223.5pt; background: #d9d9d9; cursor: text;\" width=\"298\" height=\"19\">2 current sensors<\/td>\n<\/tr>\n<tr>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 195.75pt; cursor: text;\" width=\"261\" height=\"19\">Sampling interval<\/td>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 223.5pt; cursor: text;\" width=\"298\" height=\"19\">1 minute (configurable)<\/td>\n<\/tr>\n<tr>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 195.75pt; background: #d9d9d9; cursor: text;\" width=\"261\" height=\"19\">Test range<\/td>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #BFBFBF; height: 14.25pt; width: 223.5pt; background: #D9D9D9;\" width=\"298\" height=\"19\">0~1000mA<\/td>\n<\/tr>\n<tr>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 195.75pt; cursor: text;\" width=\"261\" height=\"19\">Measurement accuracy<\/td>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #BFBFBF; height: 14.25pt; width: 223.5pt;\" width=\"298\" height=\"19\">\u00b11%<\/td>\n<\/tr>\n<tr>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 15pt; width: 195.75pt; background: #d9d9d9; cursor: text;\" width=\"261\" height=\"20\">Current alarm<\/td>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 15pt; width: 223.5pt; background: #d9d9d9; cursor: text;\" width=\"298\" height=\"20\">100mA, automatic alarm when exceeding the value<\/td>\n<\/tr>\n<tr>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 15pt; width: 195.75pt; cursor: text;\" width=\"261\" height=\"20\">Communication interface<\/td>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #BFBFBF; height: 15pt; width: 223.5pt;\" width=\"298\" height=\"20\">RS-485<\/td>\n<\/tr>\n<tr>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 195.75pt; background: #d9d9d9; cursor: text;\" width=\"261\" height=\"19\">Rated Power<\/td>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #BFBFBF; height: 14.25pt; width: 223.5pt; background: #D9D9D9;\" width=\"298\" height=\"19\">10W<\/td>\n<\/tr>\n<tr>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 15pt; width: 195.75pt; cursor: text;\" width=\"261\" height=\"20\">Overall dimensions<\/td>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #BFBFBF; height: 15pt; width: 223.5pt;\" width=\"298\" height=\"20\">245mm\u00d7190mm\u00d788mm<\/td>\n<\/tr>\n<tr>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 15pt; width: 391.5pt; background: #d9d9d9; cursor: text;\" colspan=\"2\" width=\"522\" height=\"20\">(2) HC8012 Transformer Core Ground Current Sensor<\/td>\n<\/tr>\n<tr>\n<td class=\"et5\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 391.5pt; cursor: text;\" colspan=\"2\" width=\"522\" height=\"19\">Such a current sensor is installed on each transformer core or clamp that needs to be monitored to monitor the leakage current of the transformer core or clamp in real time, and is connected to the monitoring host through a dedicated signal cable.<\/td>\n<\/tr>\n<tr>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 195.75pt; background: #d9d9d9; cursor: text;\" width=\"261\" height=\"19\">Current range<\/td>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #BFBFBF; height: 14.25pt; width: 223.5pt; background: #D9D9D9;\" width=\"298\" height=\"19\">0~1000mA<\/td>\n<\/tr>\n<tr>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 195.75pt; cursor: text;\" width=\"261\" height=\"19\">Output signal<\/td>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #BFBFBF; height: 14.25pt; width: 223.5pt;\" width=\"298\" height=\"19\">0~10V<\/td>\n<\/tr>\n<tr>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 195.75pt; background: #d9d9d9; cursor: text;\" width=\"261\" height=\"19\">Accuracy<\/td>\n<td class=\"et4\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 223.5pt; background: #d9d9d9; cursor: text;\" width=\"298\" height=\"19\">+-0.01%<\/td>\n<\/tr>\n<tr>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #bfbfbf; height: 14.25pt; width: 195.75pt; cursor: text;\" width=\"261\" height=\"19\">Operating temperature<\/td>\n<td class=\"et6\" style=\"font-size: 11pt; vertical-align: middle; border: 0.5pt solid #BFBFBF; height: 14.25pt; width: 223.5pt;\" width=\"298\" height=\"19\">-35\u2103~+65\u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":1416,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"post_folder":[30],"class_list":["post-1539","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bdzzn"],"_links":{"self":[{"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=\/wp\/v2\/posts\/1539","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1539"}],"version-history":[{"count":3,"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=\/wp\/v2\/posts\/1539\/revisions"}],"predecessor-version":[{"id":2570,"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=\/wp\/v2\/posts\/1539\/revisions\/2570"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=\/wp\/v2\/media\/1416"}],"wp:attachment":[{"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1539"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1539"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1539"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/en.bdhcdq.com\/index.php?rest_route=%2Fwp%2Fv2%2Fpost_folder&post=1539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}