{"id":1078,"date":"2026-10-28T14:23:09","date_gmt":"2026-10-28T14:23:09","guid":{"rendered":"https:\/\/www.astsystem.pl\/en\/?post_type=product&#038;p=1078"},"modified":"2026-10-28T14:50:34","modified_gmt":"2026-10-28T14:50:34","slug":"silentvar-reactive-power-compensator-models-m-l","status":"publish","type":"product","link":"https:\/\/www.astsystem.pl\/en\/produkt\/silentvar-reactive-power-compensator-models-m-l\/","title":{"rendered":"SILENTVAR REACTIVE POWER COMPENSATOR \u2014 MODELS M \/ L"},"content":{"rendered":"\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 50%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-1078 gallery-columns-2 gallery-size-medium'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.astsystem.pl\/en\/?attachment_id=1081'><img width=\"300\" height=\"274\" src=\"https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Industrialny-kompensator-mocy-biernej-SILENTVAR_miodel_L_N-1-300x274.png\" class=\"attachment-medium size-medium\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Industrialny-kompensator-mocy-biernej-SILENTVAR_miodel_L_N-1-300x274.png 300w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Industrialny-kompensator-mocy-biernej-SILENTVAR_miodel_L_N-1-1024x936.png 1024w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Industrialny-kompensator-mocy-biernej-SILENTVAR_miodel_L_N-1-768x702.png 768w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Industrialny-kompensator-mocy-biernej-SILENTVAR_miodel_L_N-1-600x548.png 600w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Industrialny-kompensator-mocy-biernej-SILENTVAR_miodel_L_N-1.png 1312w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/www.astsystem.pl\/en\/?attachment_id=1080'><img width=\"300\" height=\"300\" src=\"https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Przemyslowy-kompensator-mocy-SILENTVAR_model_L_n-300x300.png\" class=\"attachment-medium size-medium\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Przemyslowy-kompensator-mocy-SILENTVAR_model_L_n-300x300.png 300w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Przemyslowy-kompensator-mocy-SILENTVAR_model_L_n-1024x1024.png 1024w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Przemyslowy-kompensator-mocy-SILENTVAR_model_L_n-150x150.png 150w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Przemyslowy-kompensator-mocy-SILENTVAR_model_L_n-768x768.png 768w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Przemyslowy-kompensator-mocy-SILENTVAR_model_L_n-75x75.png 75w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Przemyslowy-kompensator-mocy-SILENTVAR_model_L_n-600x600.png 600w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Przemyslowy-kompensator-mocy-SILENTVAR_model_L_n-100x100.png 100w, https:\/\/www.astsystem.pl\/en\/wp-content\/uploads\/2026\/10\/Przemyslowy-kompensator-mocy-SILENTVAR_model_L_n.png 1254w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n<p>&nbsp;<\/p>\n<hr \/>\n<p><strong>Wireless measurement. Greater installation flexibility.<\/strong><\/p>\n<p>SILENTVAR supports wireless measurement of electrical parameters, reducing the need for additional measurement wiring. This provides greater flexibility when choosing the compensator\u2019s installation location within the available space and existing technical constraints.<\/p>\n<p>The solution is particularly useful where modifying the installation is difficult, costly or undesirable, including heritage buildings.<\/p>\n<p>The system also supports wired measurement using a conventional current transformer or a split-core current transformer with a <strong>5 A secondary output<\/strong>.<\/p>\n<hr \/>\n<p><strong>Silence is part of the technology<\/strong><\/p>\n<p>SILENTVAR operates without fans or the characteristic sounds of compensation step switching.<\/p>\n<p>Quiet operation is particularly valuable in urban infrastructure, commercial facilities, offices and other locations where noise from technical equipment is undesirable<\/p>\n<hr \/>\n<p><strong>One enclosure. Two sizes. Up to 43 regulation steps.<\/strong><\/p>\n<p>In models M and L, the controller and main reactor are integrated into a single enclosure. Two device sizes are available:<\/p>\n<ul>\n<li><strong>Model M:<\/strong> 190 \u00d7 190 \u00d7 160 mm.<\/li>\n<li><strong>Model L:<\/strong> 190 \u00d7 260 \u00d7 160 mm.<\/li>\n<\/ul>\n<p>The integrated design simplifies installation in control and lighting cabinets. Vertical or horizontal installation and DIN rail mounting make it easier to position the device within the available space.<\/p>\n<p>In selected configurations, the system works with additional external reactors to extend the available compensation output and number of regulation steps.<\/p>\n<hr \/>\n<p><strong>Automatic. Precise. Without ongoing user intervention.<\/strong><\/p>\n<p>SILENTVAR monitors installation parameters and continuously adjusts the compensation level as the load changes.<\/p>\n<p>The system includes:<\/p>\n<ul>\n<li>automatic reactive power compensation,<\/li>\n<li><strong>SMART<\/strong> operating mode,<\/li>\n<li>reactor self-calibration,<\/li>\n<li>single-step compensation tuning,<\/li>\n<li>adjustment of the <strong>tan \u03c6<\/strong> factor,<\/li>\n<li>time hysteresis between regulation step changes,<\/li>\n<li>overcurrent protection,<\/li>\n<li>automatic thermal protection,<\/li>\n<li>reactor temperature and compensation status alarms.<\/li>\n<\/ul>\n<p>During normal operation, the device requires no ongoing user intervention.<\/p>\n<hr \/>\n<p><strong>Ready for integration<\/strong><\/p>\n<p>SILENTVAR supports remote parameter reading, setting changes and integration with external automation and monitoring systems.<\/p>\n<p>Available communication options include:<\/p>\n<ul>\n<li><strong>Wi-Fi<\/strong>,<\/li>\n<li><strong>Ethernet<\/strong>,<\/li>\n<li><strong>Modbus<\/strong>,<\/li>\n<li><strong>REST API<\/strong>.<\/li>\n<\/ul>\n<p>A built-in display provides local access to network and compensation parameters.<\/p>\n<p>The device can work with the <strong>ASTgsm LTE control and monitoring system from AST System<\/strong>, enabling reactive power compensation to be integrated with lighting infrastructure monitoring.<\/p>\n<hr \/>\n<p><strong>Benefits<\/strong><\/p>\n<p>The SILENTVAR M \/ L system helps to:<\/p>\n<ul>\n<li>reduce reactive energy charges,<\/li>\n<li>automatically adjust compensation to the current load,<\/li>\n<li>reduce the need for manual adjustment,<\/li>\n<li>simplify installation through the integrated controller and main reactor design,<\/li>\n<li>reduce additional measurement wiring,<\/li>\n<li>simplify upgrades to existing cabinets,<\/li>\n<li>provide quiet, fanless operation,<\/li>\n<li>remotely monitor parameters and change settings,<\/li>\n<li>expand the system with additional reactors,<\/li>\n<li>integrate compensation with infrastructure management systems.<\/li>\n<\/ul>\n<p><strong>Key features<\/strong><\/p>\n<ul>\n<li>Operation in <strong>single-phase and three-phase installations<\/strong>, depending on the configuration.<\/li>\n<li>Automatic reactive power compensation.<\/li>\n<li><strong>SMART<\/strong> operating mode.<\/li>\n<li>Wireless parameter measurement as standard.<\/li>\n<li>Wired measurement using a current transformer with a <strong>5 A secondary output<\/strong>.<\/li>\n<li><strong>Up to 43 regulation steps<\/strong>, depending on the configuration.<\/li>\n<li>Compensation adjustment range of <strong>12\u2013100%<\/strong>.<\/li>\n<li>Reactor self-calibration.<\/li>\n<li>Single-step compensation tuning.<\/li>\n<li>Adjustment of the <strong>tan \u03c6<\/strong> factor.<\/li>\n<li>Time hysteresis between regulation step changes.<\/li>\n<li>Support for additional external reactors.<\/li>\n<li>Direct control of an additional reactor with <strong>soft start \u2014 up to 2000 var<\/strong>.<\/li>\n<li>Indirect control of an additional reactor via a contactor \u2014 <strong>up to 4000 var<\/strong>.<\/li>\n<li>Display of network and compensation parameters.<\/li>\n<li>Remote parameter reading and setting changes.<\/li>\n<li><strong>Wi-Fi, Ethernet and Modbus<\/strong> communication.<\/li>\n<li><strong>REST API<\/strong>.<\/li>\n<li>Overcurrent and thermal protection.<\/li>\n<li>Reactor temperature and compensation status alarms.<\/li>\n<li>Quiet, fanless operation.<\/li>\n<li>Vertical or horizontal installation and DIN rail mounting.<\/li>\n<li>Compatibility with the <strong>ASTgsm LTE control and monitoring system from AST System<\/strong>, enabling reactive power compensation to be integrated with lighting infrastructure monitoring.<\/li>\n<\/ul>\n<hr \/>\n<p><strong>Technical specifications<\/strong><\/p>\n<p><strong>Power supply<\/strong><\/p>\n<ul>\n<li>Supply voltage: <strong>230 V AC<\/strong><\/li>\n<li>Voltage tolerance: <strong>\u221210% \/ +15%<\/strong><\/li>\n<\/ul>\n<p><strong>Compensation and control<\/strong><\/p>\n<ul>\n<li>Installation type: <strong>single-phase or three-phase<\/strong>, depending on the configuration<\/li>\n<li>System compensation output range: <strong>35\u20137600 var<\/strong>, depending on the configuration and reactors used<\/li>\n<li>Number of regulation steps: <strong>up to 10, 21 or 43<\/strong><\/li>\n<li>Compensation adjustment range: <strong>12\u2013100%<\/strong><\/li>\n<li><strong>SMART<\/strong> operating mode<\/li>\n<li>Adjustment of the <strong>tan \u03c6<\/strong> factor<\/li>\n<li>Reactor self-calibration<\/li>\n<li>Single-step compensation tuning<\/li>\n<li>Time hysteresis between regulation step changes<\/li>\n<\/ul>\n<p><strong>Additional reactor control<\/strong><\/p>\n<ul>\n<li>Direct control with <strong>soft start: up to 2000 var<\/strong><\/li>\n<li>Indirect control via a contactor: <strong>up to 4000 var<\/strong><\/li>\n<li>Maximum total system compensation output: <strong>7600 var<\/strong>, with an appropriate configuration<\/li>\n<\/ul>\n<p><strong>Measurement<\/strong><\/p>\n<ul>\n<li>Wireless parameter measurement as standard<\/li>\n<li>Wired measurement option<\/li>\n<li>Support for conventional or split-core current transformers with a <strong>5 A secondary output<\/strong><\/li>\n<li>Local parameter readings on the display<\/li>\n<\/ul>\n<p><strong>Communication<\/strong><\/p>\n<ul>\n<li>Wi-Fi<\/li>\n<li>Ethernet<\/li>\n<li>Modbus<\/li>\n<li>REST API<\/li>\n<li>Remote parameter reading and setting changes<\/li>\n<li>Compatibility with the <strong>ASTgsm LTE system from AST System<\/strong><\/li>\n<\/ul>\n<p><strong>Protection and alarms<\/strong><\/p>\n<ul>\n<li>Overcurrent protection<\/li>\n<li>Automatic thermal protection<\/li>\n<li>Reactor temperature alarm<\/li>\n<li>Compensation status alarm<\/li>\n<\/ul>\n<p><strong>Mechanical specifications<\/strong><\/p>\n<ul>\n<li>Design: <strong>controller and main reactor integrated into a single enclosure<\/strong><\/li>\n<li>Protection rating: <strong>IP20<\/strong><\/li>\n<li>Model <strong>M dimensions: 190 \u00d7 190 \u00d7 160 mm<\/strong><\/li>\n<li>Model <strong>L dimensions: 190 \u00d7 260 \u00d7 160 mm<\/strong><\/li>\n<li>Additional space for external reactors required in selected versions<\/li>\n<\/ul>\n<p><strong>Installation<\/strong><\/p>\n<ul>\n<li>In control and lighting cabinets<\/li>\n<li>DIN rail mounting<\/li>\n<li>Vertical or horizontal orientation<\/li>\n<\/ul>\n<p><strong>Operating conditions<\/strong><\/p>\n<ul>\n<li>Operating temperature: <strong>\u221220\u00b0C to +60\u00b0C<\/strong><\/li>\n<\/ul>\n<hr \/>\n<p><strong>Seven versions. One system.<\/strong><\/p>\n<p>SILENTVAR M \/ L is available in seven configurations with different compensation outputs and numbers of regulation steps.<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>Model<\/strong><\/td>\n<td><strong>Compensation output<\/strong><\/td>\n<td><strong>Number of regulation steps<\/strong><\/td>\n<td><strong>Enclosure dimensions<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>M 320\/10<\/strong><\/td>\n<td>320 var<\/td>\n<td>Up to 10<\/td>\n<td>190 \u00d7 190 \u00d7 160 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>M 720\/10<\/strong><\/td>\n<td>720 var<\/td>\n<td>Up to 10<\/td>\n<td>190 \u00d7 190 \u00d7 160 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>L 1600\/10<\/strong><\/td>\n<td>1600 var<\/td>\n<td>Up to 10<\/td>\n<td>190 \u00d7 260 \u00d7 160 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>M 1520\/21<\/strong><\/td>\n<td>1520 var<\/td>\n<td>Up to 21<\/td>\n<td>190 \u00d7 190 \u00d7 160 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>L 3600\/21<\/strong><\/td>\n<td>3600 var<\/td>\n<td>Up to 21<\/td>\n<td>190 \u00d7 260 \u00d7 160 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>L 1470\/43<\/strong><\/td>\n<td>1470 var<\/td>\n<td>Up to 43<\/td>\n<td>190 \u00d7 260 \u00d7 160 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>L 2570\/43<\/strong>*<\/td>\n<td>2670 var*<\/td>\n<td>Up to 43<\/td>\n<td>190 \u00d7 260 \u00d7 160 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Versions <strong>1520\/21, 3600\/21, 1470\/43 and the final 43-step version<\/strong> use additional external reactors. The stated outputs cover the complete configuration, including these reactors. The dimensions shown in the table refer to the enclosure containing the integrated controller and main reactor.<\/p>\n<p>Custom versions with individually selected reactor designs, compensation outputs and numbers of regulation steps are also available.<\/p>\n<hr \/>\n<p><strong>Applications<\/strong><\/p>\n<ul>\n<li><strong>Street lighting control cabinets<\/strong> \u2014 reactive power compensation in new and existing lighting installations.<\/li>\n<li><strong>Switchboard upgrades<\/strong> \u2014 an integrated design and wireless measurement make it easier to fit the device into the available space.<\/li>\n<li><strong>Commercial facilities and public buildings<\/strong> \u2014 automatic reduction of reactive energy charges in installations with suitable load characteristics.<\/li>\n<li><strong>Heritage buildings<\/strong> \u2014 reduced need for additional measurement wiring.<\/li>\n<li><strong>Infrastructure requiring remote supervision<\/strong> \u2014 integration of compensation parameters with monitoring and automation systems.<\/li>\n<\/ul>\n<hr \/>\n<p><strong>Select the right compensator for your installation<\/strong><\/p>\n<p>The output and configuration of the SILENTVAR system should be selected based on an analysis of the installation\u2019s electrical parameters, load characteristics and reactive energy billing arrangements.<\/p>\n<p><strong>COREVOLT provides technical support in selecting the appropriate solution<\/strong>, taking into account installation conditions, the required compensation range and integration options with existing infrastructure.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><span style=\"font-size: 24pt;\">AUTOMATIC COMPENSATION. QUIET OPERATION. LOWER COSTS.<\/span><\/p>\n<p><strong>Product description<\/strong><\/p>\n<p><strong>SILENTVAR M \/ L<\/strong> is an advanced automatic reactive power compensation system developed by <strong>COREVOLT<\/strong> for control cabinets, lighting installations and facilities requiring precise reactive power regulation.<\/p>\n<p>Models <strong>M and L<\/strong> combine the controller and the main reactor in a single enclosure. This integrated design simplifies installation, makes efficient use of cabinet space and reduces the number of separately installed components.<\/p>\n<p>The device automatically adjusts the compensation output to changing installation conditions, reducing billable reactive energy and the associated charges. A correctly selected and configured system can reduce these charges <strong>to zero<\/strong>, depending on the load characteristics, installation parameters and electricity billing arrangements.<\/p>\n<p>Quiet operation, compact dimensions and wireless parameter measurement make SILENTVAR suitable for both new installations and upgrades to existing infrastructure.<\/p>\n","protected":false},"featured_media":1081,"template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.astsystem.pl\/en\/wp-json\/wp\/v2\/product\/1078"}],"collection":[{"href":"https:\/\/www.astsystem.pl\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.astsystem.pl\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.astsystem.pl\/en\/wp-json\/wp\/v2\/media\/1081"}],"wp:attachment":[{"href":"https:\/\/www.astsystem.pl\/en\/wp-json\/wp\/v2\/media?parent=1078"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}