{"id":16116,"date":"2026-06-23T10:16:22","date_gmt":"2026-06-23T08:16:22","guid":{"rendered":"https:\/\/mag.ebmpapst.com\/en\/?p=16116"},"modified":"2026-06-23T10:18:52","modified_gmt":"2026-06-23T08:18:52","slug":"what-the-tech-how-does-an-electronically-commutated-ec-motor-work","status":"publish","type":"post","link":"https:\/\/mag.ebmpapst.com\/en\/products\/motors\/what-the-tech-how-does-an-electronically-commutated-ec-motor-work_16116\/","title":{"rendered":"EC vs. AC: Effi\u00adciency, Control\u00adla\u00adbility, and System Bene\u00adfits"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">The require\u00adments for modern refrig\u00ader\u00ada\u00adtion and venti\u00adlation systems have changed signif\u00adi\u00adcantly in recent years. In addi\u00adtion to tradi\u00adtional para\u00adme\u00adters such as airflow and pres\u00adsure, the focus today is increas\u00adingly on energy effi\u00adciency, control\u00adla\u00adbility, noise perfor\u00admance, and system inte\u00adgra\u00adtion. At the same time, regu\u00adla\u00adtory require\u00adments are increas\u00adingly shifting the eval\u00adu\u00ada\u00adtion of fans to the system level.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Against this back\u00addrop, EC tech\u00adnology has estab\u00adlished itself as the stan\u00addard for fan drives. Its advan\u00adtage stems not from a single char\u00adac\u00adter\u00adistic, but from the inter\u00adplay of effi\u00adciency, intel\u00adli\u00adgent control, and system inte\u00adgra\u00adtion.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Oper\u00adating Prin\u00adciple and Tech\u00adnical Funda\u00admen\u00adtals of EC Tech\u00adnology<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">EC motors are perma\u00adnent magnet-excited synchro\u00adnous machines with inte\u00adgrated power elec\u00adtronics. Commu\u00adta\u00adtion is performed elec\u00adtron\u00adi\u00adcally, elim\u00adi\u00adnating mechan\u00adical wear parts and enabling precise control of the current flow.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"540\" src=\"https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_RadiPac_C_electronics_online-mag-960x540.webp\" alt class=\"wp-image-23127\" srcset=\"https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_RadiPac_C_electronics_online-mag-960x540.webp 960w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_RadiPac_C_electronics_online-mag-660x371.webp 660w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_RadiPac_C_electronics_online-mag-260x146.webp 260w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_RadiPac_C_electronics_online-mag-1536x864.webp 1536w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_RadiPac_C_electronics_online-mag-2048x1152.webp 2048w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_RadiPac_C_electronics_online-mag-450x253.webp 450w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_RadiPac_C_electronics_online-mag-300x169.webp 300w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\"><figcaption class=\"wp-element-caption\">View of the inte\u00adgrated elec\u00adtronics in a RadiPac EC fan: Motor, power elec\u00adtronics, and control form a compact unit for high effi\u00adciency and reli\u00adable system oper\u00ada\u00adtion.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The elec\u00adtronics perform several func\u00adtions simul\u00adta\u00adne\u00adously: they convert alter\u00adnating current to direct current, generate a vari\u00adable rotating field, and synchro\u00adnize it with the rotor posi\u00adtion. This results in oper\u00ada\u00adtion with mini\u00admized losses with uniform torque. Unlike AC systems, the control is directly inte\u00adgrated. The fan is thus designed as a complete mecha\u00adtronic system in which the motor, elec\u00adtronics, and control are opti\u00admally inte\u00adgrated.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">This inte\u00adgra\u00adtion enables:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>step\u00adless speed control<\/li>\n\n\n\n<li>stable oper\u00ada\u00adtion<\/li>\n\n\n\n<li>inte\u00adgra\u00adtion into higher-level systems<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">AC vs. EC Tech\u00adnology: Tech\u00adnical Compar\u00adison<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Crite\u00adrion<\/strong><strong><\/strong><\/td><td><strong>AC tech\u00adnology<\/strong><strong><\/strong><\/td><td><strong>EC tech\u00adnology<\/strong><strong><\/strong><\/td><\/tr><tr><td>Motor prin\u00adciple<\/td><td>Asyn\u00adchro\u00adnous with slip<\/td><td>Synchro\u00adnous with perma\u00adnent magnet<\/td><\/tr><tr><td>Control<\/td><td>external control required<\/td><td>Inte\u00adgrated<\/td><\/tr><tr><td>Speed response<\/td><td>limited vari\u00adability<\/td><td>contin\u00adu\u00adously vari\u00adable<\/td><\/tr><tr><td>Effi\u00adciency<\/td><td>load-depen\u00addent<\/td><td>High across the entire range<\/td><\/tr><tr><td>System inte\u00adgra\u00adtion<\/td><td>Low<\/td><td>high<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The key differ\u00adence lies in slip: In AC motors, system-related losses arise from the differ\u00adence between the rotating field and the rotor. EC motors avoid these losses through synchro\u00adnous oper\u00ada\u00adtion.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why EC Tech\u00adnology Is More Effi\u00adcient<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The higher effi\u00adciency results from several factors: In an AC motor, torque is gener\u00adated via induced rotor currents\u2014a loss mech\u00ada\u00adnism inherent to the design. EC motors, on the other hand, use perma\u00adnent magnets and generate torque directly. This completely elim\u00adi\u00adnates rotor losses. At the same time, elec\u00adtronic commu\u00adta\u00adtion ensures precise current control and mini\u00admizes reac\u00adtive power. Addi\u00adtion\u00adally, EC fans are designed as direct-drive systems, thereby avoiding further losses caused by external compo\u00adnents. The key point: Effi\u00adciency is achieved at the system level, not just within the motor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Demand-Driven Oper\u00ada\u00adtion as a Key Effi\u00adciency Lever<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In real-world appli\u00adca\u00adtions, air demand fluc\u00adtu\u00adates contin\u00adu\u00adously. This is primarily due to vari\u00adable usage and load condi\u00adtions within the facility. For example, in office build\u00adings, the required fresh air flow rate drops signif\u00adi\u00adcantly when rooms are unoc\u00adcu\u00adpied, as less mois\u00adture, CO\u2082, and heat need to be removed.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"639\" src=\"https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_Motor_Mulfingen_online-mag-960x639.webp\" alt class=\"wp-image-23124\" style=\"aspect-ratio:16\/9;object-fit:cover\" srcset=\"https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_Motor_Mulfingen_online-mag-960x639.webp 960w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_Motor_Mulfingen_online-mag-660x439.webp 660w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_Motor_Mulfingen_online-mag-260x173.webp 260w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_Motor_Mulfingen_online-mag-1536x1022.webp 1536w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_Motor_Mulfingen_online-mag-2048x1363.webp 2048w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_Motor_Mulfingen_online-mag-450x299.webp 450w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_Motor_Mulfingen_online-mag-300x200.webp 300w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\"><figcaption class=\"wp-element-caption\">Stator assem\u00adblies of EC motors in produc\u00adtion: Precisely wound copper coils generate the elec\u00adtro\u00admag\u00adnetic rotating field and form the basis for effi\u00adcient, low-loss oper\u00ada\u00adtion.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Dynamic load profiles also occur in other appli\u00adca\u00adtions: In data centers or indus\u00adtrial processes, waste heat varies depending on current utiliza\u00adtion, causing the required airflow to change contin\u00adu\u00adously as well. Addi\u00adtion\u00adally, factors such as outdoor temper\u00ada\u00adture, system condi\u00adtion, or instal\u00adla\u00adtion envi\u00adron\u00adment influ\u00adence the fan\u2019s actual oper\u00adating point.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Conven\u00adtional systems often respond by throt\u00adtling, which restricts airflow without reducing energy consump\u00adtion propor\u00adtion\u00adally but does not utilize energy effi\u00adciently. EC fans use speed control as the central control vari\u00adable. This is based on the fan laws, according to which power consump\u00adtion increases approx\u00adi\u00admately with the cube of the speed (P ~ n\u00b3). This char\u00adac\u00adter\u00adistic makes partial-load oper\u00ada\u00adtion the greatest lever for energy savings. This means that even a moderate reduc\u00adtion in speed leads to dispro\u00adpor\u00adtion\u00adately large energy savings.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A concrete example illus\u00adtrates this rela\u00adtion\u00adship:<br>If a fan\u2019s speed is reduced from 100% to 80%, the power consump\u00adtion is calcu\u00adlated as follows:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><msub><mi>P<\/mi><mrow><mi>n<\/mi><mi>e<\/mi><mi>u<\/mi><\/mrow><\/msub><mo>=<\/mo><mo form=\"prefix\" stretchy=\"false\">(<\/mo><mn>0,8<\/mn><msup><mo form=\"postfix\" stretchy=\"false\">)<\/mo><mn>3<\/mn><\/msup><mo>=<\/mo><mn>0,512<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">P_{neu}=(0,8)^3=0,512<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The fan thus requires only about <strong>51% of the orig\u00adinal elec\u00adtrical power<\/strong>. Despite a rela\u00adtively small speed reduc\u00adtion of 20%, energy consump\u00adtion is reduced by nearly half.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The effect becomes even more pronounced during heavy partial-load oper\u00ada\u00adtion:<br>At 50% speed, the result is:<\/p>\n\n\n\n<div class=\"wp-block-math\"><math display=\"block\"><semantics><mrow><msub><mi>P<\/mi><mrow><mi>n<\/mi><mi>e<\/mi><mi>u<\/mi><\/mrow><\/msub><mo>=<\/mo><mo form=\"prefix\" stretchy=\"false\">(<\/mo><mn>0,5<\/mn><msup><mo form=\"postfix\" stretchy=\"false\">)<\/mo><mn>3<\/mn><\/msup><mo>=<\/mo><mn>0,125<\/mn><\/mrow><annotation encoding=\"application\/x-tex\">P_{neu}=(0,5)^3=0,125<\/annotation><\/semantics><\/math><\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">This means the fan now requires only <strong>12.5% of its orig\u00adinal power<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In prac\u00adtice, this means: Espe\u00adcially in appli\u00adca\u00adtions with vari\u00adable load profiles \u2014 such as in building services or refrig\u00ader\u00ada\u00adtion tech\u00adnology \u2014 the greatest savings poten\u00adtial lies not in full-load oper\u00ada\u00adtion, but in the partial-load range.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Grid Behavior and Elec\u00adtro\u00admag\u00adnetic Compat\u00adi\u00adbility (EMC) in EC Fans<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The use of power elec\u00adtronics is a key prereq\u00adui\u00adsite for the high effi\u00adciency and control\u00adla\u00adbility of EC fans. At the same time, it entails specific require\u00adments regarding elec\u00adtrical grid behavior. Since EC drives operate inter\u00adnally with a recti\u00adfier, DC link, and inverter, they are nonlinear loads. The current drawn there\u00adfore devi\u00adates from the ideal sinu\u00adsoidal wave\u00adform and contains harmonics. These distor\u00adtions can be described as Total Harmonic Distor\u00adtion (THD) and can affect both power quality and the behavior of other connected loads.<\/p>\n\n\n\n<figure class=\"wp-block-image alignwide size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"540\" src=\"https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_EMC_Mulfingen_online-mag-1-960x540.webp\" alt class=\"wp-image-23131\" srcset=\"https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_EMC_Mulfingen_online-mag-1-960x540.webp 960w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_EMC_Mulfingen_online-mag-1-660x371.webp 660w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_EMC_Mulfingen_online-mag-1-260x146.webp 260w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_EMC_Mulfingen_online-mag-1-1536x864.webp 1536w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_EMC_Mulfingen_online-mag-1-2048x1152.webp 2048w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_EMC_Mulfingen_online-mag-1-450x253.webp 450w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2026\/06\/Image_EMC_Mulfingen_online-mag-1-300x169.webp 300w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\"><figcaption class=\"wp-element-caption\">EMC testing of a fan in an in-house labo\u00adra\u00adtory: Special\u00adized anechoic cham\u00adbers are used to vali\u00addate emis\u00adsion levels and immu\u00adnity under real\u00adistic oper\u00adating condi\u00adtions.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For inte\u00adgra\u00adtion into indus\u00adtrial and HVAC systems, a dedi\u00adcated EMC design approach is there\u00adfore required. Modern EC fans already take these aspects into account during devel\u00adop\u00adment: Through coor\u00addi\u00adnated filter concepts, opti\u00admized switching strate\u00adgies, and careful design of the power elec\u00adtronics, both conducted and radi\u00adated inter\u00adfer\u00adence emis\u00adsions are mini\u00admized. In addi\u00adtion, immu\u00adnity to external influ\u00adences is tested to ensure stable oper\u00ada\u00adtion even in complex systems. <a href=\"https:\/\/mag.ebmpapst.com\/en\/industries\/heating\/emc-at-air-water-heat-pumps-electromagnetic-compatibility_21449\/\" target=\"_blank\" rel=\"noreferrer noopener\">To this end, ebm-papst utilizes exten\u00adsive EMC labo\u00adra\u00adtory infra\u00adstruc\u00adture with various measure\u00adment envi\u00adron\u00adments and testing capa\u00adbil\u00adi\u00adties for a wide range of appli\u00adca\u00adtions.<\/a> This allows both emis\u00adsions and immu\u00adnity to be system\u00adat\u00adi\u00adcally vali\u00addated and opti\u00admized. The central chal\u00adlenge here is: How can the fan be made as grid-friendly as possible despite its power elec\u00adtronic connec\u00adtion?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Active PFC: Power Factor Correc\u00adtion to Reduce Grid Inter\u00adfer\u00adence<\/h2>\n\n\n\n<div class=\"wp-block-group article-sidebox\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"height:9px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/www.ebmpapst.com\/de\/en\/support\/downloads\/software\/active-pfc-whitepaper.html\" target=\"_blank\" rel=\" noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"1258\" height=\"1258\" src=\"https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2019\/04\/activepfc-whitepaper-en.jpg\" alt class=\"wp-image-21557\" style=\"aspect-ratio:4\/3;object-fit:cover;width:200px\" srcset=\"https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2019\/04\/activepfc-whitepaper-en.jpg 1258w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2019\/04\/activepfc-whitepaper-en-660x660.jpg 660w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2019\/04\/activepfc-whitepaper-en-960x960.jpg 960w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2019\/04\/activepfc-whitepaper-en-260x260.jpg 260w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2019\/04\/activepfc-whitepaper-en-300x300.jpg 300w, https:\/\/ebmpapst-7237.kxcdn.com\/en\/files\/2019\/04\/activepfc-whitepaper-en-450x450.jpg 450w\" sizes=\"auto, (max-width: 1258px) 100vw, 1258px\"><\/a><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">Power quality under control \u2013 no extra effort required!<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Discover in the white paper how inte\u00adgrated active recti\u00adfi\u00adca\u00adtion makes EC fans ready for the toughest require\u00adments.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link has-custom-font-size wp-element-button\" href=\"https:\/\/www.ebmpapst.com\/de\/en\/campaigns\/industry-campaigns\/aktiv-pfc\/gated-content.html\" style=\"font-size:18px\" target=\"_blank\" rel=\"noreferrer noopener\">Read the white paper now <i class=\"mgznkr-icon fa fa-chevron-right fas\"><\/i><\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">A key tech\u00adno\u00adlog\u00adical solu\u00adtion to this chal\u00adlenge is Active Power Factor Correc\u00adtion (Active PFC). Without appro\u00adpriate measures, the nonlinear current consump\u00adtion of EC drives leads to an poor power factor: current and voltage are out of phase, and the current wave\u00adform contains addi\u00adtional harmonics. This reduces the usable active power while simul\u00adta\u00adne\u00adously increasing the load on the power grid. Active PFC circuits specif\u00adi\u00adcally address this behavior. They actively shape the drawn current so that it is as sinu\u00adsoidal as possible and in phase with the mains voltage. This signif\u00adi\u00adcantly improves the power factor and reduces the impact on the elec\u00adtrical grid.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In prac\u00adtice, this results in several key advan\u00adtages: harmonic distor\u00adtion is reduced, energy is trans\u00admitted more effi\u00adciently, and grid stability increases\u2014especially in systems with many fans oper\u00adating in parallel, such as in data centers or large venti\u00adlation systems. Thus, Active PFC does not func\u00adtion in isola\u00adtion as a feature of power elec\u00adtronics, but rather as an inte\u00adgral part of a compre\u00adhen\u00adsively opti\u00admized overall system that oper\u00adates both effi\u00adciently and in a grid-friendly manner.<\/p>\n\n\n\n<h2 class=\"wp-block-heading no-clear\">Tech\u00adnology Lead\u00ader\u00adship and Expe\u00adri\u00adence<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">EC tech\u00adnology was first used by ebm-papst in fans over 50 years ago and has been contin\u00adu\u00adously refined.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">This expe\u00adri\u00adence is partic\u00adu\u00adlarly evident in:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>robust system solu\u00adtions<\/li>\n\n\n\n<li>high reli\u00ada\u00adbility<\/li>\n\n\n\n<li>opti\u00admized system inte\u00adgra\u00adtion<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The combi\u00adna\u00adtion of expe\u00adri\u00adence and inno\u00adva\u00adtion forms the foun\u00adda\u00adtion for today\u2019s state-of-the-art tech\u00adnology.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ \u2013 Frequently Asked Ques\u00adtions About EC Tech\u00adnology<\/h2>\n\n\n\n<div data-wp-context=\"{ &quot;autoclose&quot;: true, &quot;accordionItems&quot;: [] }\" data-wp-interactive=\"core\/accordion\" role=\"group\" class=\"wp-block-accordion is-layout-flow wp-block-accordion-is-layout-flow\">\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-2&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-2-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-2\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">What distinguishes EC technology from AC technology?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-2\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-2-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">EC motors operate synchro\u00adnously with inte\u00adgrated elec\u00adtronics, while AC motors require external control.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-3&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-3-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-3\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Why is EC technology more efficient?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-3\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-3-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Due to the elim\u00adi\u00adna\u00adtion of slip losses and optimal control\u00adla\u00adbility.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-4&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-4-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-4\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">What role does partial-load operation play?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-4\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-4-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">This is where the greatest energy savings are achieved through speed control.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-5&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-5-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-5\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Is EC technology always the better solution?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-5\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-5-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">EC enables demand-based oper\u00ada\u00adtion and system inte\u00adgra\u00adtion and is there\u00adfore almost always the tech\u00adni\u00adcally supe\u00adrior choice in prac\u00adtice.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-6&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-6-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-6\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">Why are EMC and PFC important?<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-6\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-6-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"wp-block-paragraph\">They ensure grid quality and stable system oper\u00ada\u00adtion.<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Conclu\u00adsion on EC Tech\u00adnology in Venti\u00adlation Tech\u00adnology<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">EC tech\u00adnology repre\u00adsents the state of the art in fan tech\u00adnology today. Its strength lies partic\u00adu\u00adlarly in the combi\u00adna\u00adtion of high energy effi\u00adciency, precise control\u00adla\u00adbility, and inte\u00adgrated system func\u00adtion\u00adality. Unlike tradi\u00adtional drive concepts, the fan is no longer viewed in isola\u00adtion but as part of a networked system whose oper\u00adating point can be contin\u00adu\u00adously adjusted to real-world require\u00adments. This helps prevent energy losses while simul\u00adta\u00adne\u00adously opti\u00admizing stability, noise perfor\u00admance, and service life.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">EC tech\u00adnology shows its full poten\u00adtial partic\u00adu\u00adlarly with vari\u00adable load profiles: The combi\u00adna\u00adtion of vari\u00adable-speed oper\u00ada\u00adtion, inte\u00adgrated elec\u00adtronics, and systemic opti\u00admiza\u00adtion leads to signif\u00adi\u00adcant effi\u00adciency gains in real-world plant oper\u00ada\u00adtion. With increasing digitalization\u2014such as through networked solu\u00adtions and data-driven analysis\u2014the fan is also evolving into an intel\u00adli\u00adgent system compo\u00adnent that actively contributes to increased effi\u00adciency and oper\u00ada\u00adtional reli\u00ada\u00adbility. With NEXAIRA, ebm-papst has intro\u00adduced the first digital ecosystem for intel\u00adli\u00adgent venti\u00adlation appli\u00adca\u00adtions. As a result, EC tech\u00adnology is no longer just an option, but the preferred solu\u00adtion in most appli\u00adca\u00adtions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The require\u00adments for modern refrig\u00ader\u00ada\u00adtion and venti\u00adlation systems have changed signif\u00adi\u00adcantly in recent years. In addi\u00adtion to tradi\u00adtional para\u00adme\u00adters such as airflow and pres\u00adsure, the focus today is increas\u00adingly on energy effi\u00adciency, control\u00adla\u00adbility, noise perfor\u00admance, and system inte\u00adgra\u00adtion. At the same time, regu\u00adla\u00adtory require\u00adments are increas\u00adingly shifting the eval\u00adu\u00ada\u00adtion of fans to the system level. [\u2026]<\/p>\n","protected":false},"author":36,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"wp_typography_post_enhancements_disabled":false,"footnotes":""},"categories":[20,169],"tags":[],"class_list":["post-16116","post","type-post","status-publish","format-standard","hentry","category-motors","category-what-the-tech"],"acf":[],"_links":{"self":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts\/16116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/users\/36"}],"replies":[{"embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/comments?post=16116"}],"version-history":[{"count":9,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts\/16116\/revisions"}],"predecessor-version":[{"id":23146,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/posts\/16116\/revisions\/23146"}],"wp:attachment":[{"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/media?parent=16116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/categories?post=16116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mag.ebmpapst.com\/en\/wp-json\/wp\/v2\/tags?post=16116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}