{"id":2584,"date":"2023-03-09T09:56:09","date_gmt":"2023-03-09T09:56:09","guid":{"rendered":"https:\/\/www.greenwood-power.com\/wp_gwp20\/?p=2584"},"modified":"2026-03-10T13:53:59","modified_gmt":"2026-03-10T13:53:59","slug":"power-quality-monitoring-2","status":"publish","type":"post","link":"https:\/\/www.greenwood-power.com\/de\/power-quality-monitoring-2\/","title":{"rendered":"Power Quality Monitoring"},"content":{"rendered":"<div class=\"et_pb_section_0 et_pb_section et_section_regular et_block_section\" id=\"combined-sensor\"><div class=\"et_pb_row_0 et_pb_row et_block_row et_animated\"><div class=\"et_pb_column_0 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough pa-inline-buttons\"><div class=\"et_pb_text_0 et_pb_text et_pb_bg_layout_light et_animated et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><h1>Power Quality Monitoring<\/h1>\n<\/div><\/div><div class=\"et_pb_image_0 et_pb_image et_animated et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.greenwood-power.com\/wp_gwp20\/wp-content\/uploads\/2023\/02\/Power-Quality-Monitoring.jpg\" alt=\"Power Quality Monitoring\" title=\"Power-Quality-Monitoring\" width=\"500\" height=\"281\" srcset=\"https:\/\/www.greenwood-power.com\/wp_gwp20\/wp-content\/uploads\/2023\/02\/Power-Quality-Monitoring.jpg 500w, https:\/\/www.greenwood-power.com\/wp_gwp20\/wp-content\/uploads\/2023\/02\/Power-Quality-Monitoring-480x270.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 500px, 100vw\" class=\"wp-image-1660\" \/><\/span><\/div><div class=\"et_pb_text_1 et_pb_text et_pb_bg_layout_light et_animated et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>T he number of renewable energy producers in the energy grid such as wind or pv has increased over the last few years. Most of these producers use frequency converters that make a non-perfect sine wave, or in the worst-case scenario, a trapezoid signal. Additionally, there is an increasing number of non-linear consumers such as LED\u00b4s or switching power supplies<\/p>\n<p>These producers\/consumers are causing harmonics to occur on top of the basic sine wave. These waves can go up to hundreds of kilohertz and can be summarized by the THD (Total harmonic distortion) factor, which is given in a percentage.<\/p>\n<p>These harmonics have different effects on the grid:<\/p>\n<ul>\n<li>Exceeding the given limits for THD can damage components of the grid and reduce its life-time<\/li>\n<li>Malfunction in the tripping of the circuit breaker protection functions<\/li>\n<li>Overheating of power transformers\/distribution transformers<\/li>\n<li>Overload of neutral conductors<\/li>\n<li>Noise caused by frequencies between 10 and 20kHz<\/li>\n<\/ul>\n<p>Utility companies must detect these harmonics early enough to take the proper countermeasures such as using compensation circuits and filters. Acquiring this signal is only possible with sensors that can transmit the harmonics with a certain accuracy. All GWP sensor products (voltage- and current sensors) can transform high voltage harmonics to low voltage signals up to 150kHz using a passive technology that does not require software compensation.<\/p>\n<\/div><\/div><div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_0_wrapper\"><a class=\"et_pb_button_0 et_pb_button et_pb_bg_layout_light et_pb_module et_block_module fb-social-share gw-social-share\" href=\"\" target=\"_blank\" data-icon=\"\ue0aa\">Teilen auf<\/a><\/div><div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_1_wrapper\"><a class=\"et_pb_button_1 et_pb_button et_pb_bg_layout_light et_pb_module et_block_module twitter-social-share gw-social-share\" href=\"\" target=\"_blank\" data-icon=\"\ue094\">Teilen auf<\/a><\/div><div class=\"et_pb_module et_pb_button_module_wrapper et_pb_button_2_wrapper\"><a class=\"et_pb_button_2 et_pb_button et_pb_bg_layout_light et_pb_module et_block_module linkedin-social-share gw-social-share\" href=\"\" 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