{"id":3721,"date":"2026-04-16T05:17:43","date_gmt":"2026-04-16T05:17:43","guid":{"rendered":"https:\/\/ottai-power.com\/?post_type=product&#038;p=3721"},"modified":"2026-04-17T09:52:48","modified_gmt":"2026-04-17T09:52:48","slug":"microprocessor-based-resonance-eliminator","status":"publish","type":"product","link":"https:\/\/ottai-power.com\/es\/producto\/microprocessor-based-resonance-eliminator\/","title":{"rendered":"Microprocessor-based Resonance Eliminator"},"content":{"rendered":"<p><strong>Features and Characteristics<\/strong><\/p>\n<p>Modular design with a compact structure and advanced technology; a high-speed 32-bit ARM core processor ensures real-time computational performance and precise operational response.<\/p>\n<p>Real-time monitoring of system status and real-time computation enable accurate identification of low-frequency, fundamental-frequency, and high-frequency resonance faults, triggering timely corrective actions.<\/p>\n<p>Real-time display of three-phase voltages and open-delta voltage allows for accurate detection of ground faults, over\/under-voltage conditions, and resonance events.<\/p>\n<p>If system resonance is re-excited after having been damped and eliminated, the device will immediately reactivate to suppress it once again.<\/p>\n<p>An industrial-standard RS-485 communication interface enables the real-time transmission of system operational status to a host computer.<\/p>\n<p>Fault recall function: a large-capacity Flash memory stores records of the 20 most recent historical faults.<\/p>\n<p>Excellent electromagnetic compatibility makes the device suitable for deployment in complex environments characterized by strong electromagnetic interference.<\/p>\n<p>Dual hardware watchdog circuits ensure the reliability and stability of software operation.<\/p>\n<p>Features a Chinese-language LCD display for clear indication of operational status, combined with a menu-driven interface for convenient and user-friendly operation.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Technical Specifications and Operating Environment<\/strong><\/p>\n<p>Applicable Scope:** 3kV\u201335kV systems.<\/p>\n<p>Harmonic Elimination Channels:** 1 channel (2-channel versions available upon request).<\/p>\n<p>Applicable Resonance Frequencies:** High-frequency, low-frequency, and power-frequency resonance.<\/p>\n<p>Harmonic Elimination Activation Voltage:** 30V for low-frequency resonance; 120V for power-frequency and high-frequency resonance.<\/p>\n<p>Voltage Measurement Accuracy:** 0.5%.<\/p>\n<p>Frequency Measurement Accuracy:** \u00b11Hz.<\/p>\n<p>Alarm Relay Output Contact Capacity:** AC 240V\/10A, DC 30V\/10A.<\/p>\n<p>Communication Interface:** RS485 @ 9600bps.<\/p>\n<p>Operating Power Supply:** AC 220V \u00b110%, DC 220V \u00b110%.<\/p>\n<p>Ambient Temperature:** \u201310\u00b0C to +50\u00b0C.<\/p>\n<p>Altitude:** &lt; 2000 meters.<\/p>\n<p>Operating Environment Temperature:** \u201310\u00b0C to +60\u00b0C.<\/p>\n<p>Relative Humidity:** 90% (at 25\u00b0C), 50% (at 40\u00b0C).<\/p>\n<p>Installation Site Requirements:** Must be free from corrosive gases, vapors, and conductive dust; must be free from explosive gases and gases that degrade insulation properties.<\/p>\n<p>Installation Site Facilities:** Must be equipped with protection against wind, rain, and dust.<\/p>","protected":false},"excerpt":{"rendered":"<ul>\n<li>In power systems, ferroresonance occurs frequently; during resonance, it generates overvoltages that pose a serious threat to system safety. Ferroresonant overvoltages can occur in any system ranging from 3 kV to 220 kV; this is particularly true in power grids rated at 35 kV and below, where almost all internal overvoltage incidents are caused by ferroresonance. The overvoltages induced by ferroresonance are long-lasting and may even persist for extended periods. During sub-harmonic resonance, the overvoltage magnitude is generally not high; however, the current flowing through the Potential Transformer (PT) is substantial, making the PT susceptible to overheating and subsequent explosion. Conversely, during fundamental-frequency and super-harmonic resonance, the current is typically low, but the resulting overvoltage is extremely high, frequently causing damage to equipment insulation and leading to severe accidents.<\/li>\n<\/ul>","protected":false},"featured_media":3498,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[57,124],"product_tag":[170,171,172,173],"class_list":{"0":"post-3721","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-high-low-voltage-components","7":"product_cat-microcomputer-harmonic-elimination","8":"product_tag-harmonicsuppressor","9":"product_tag-photovoltaic","10":"product_tag-powerstation","11":"product_tag-transientovervoltage","13":"first","14":"instock","15":"shipping-taxable","16":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/ottai-power.com\/es\/wp-json\/wp\/v2\/product\/3721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ottai-power.com\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ottai-power.com\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ottai-power.com\/es\/wp-json\/wp\/v2\/comments?post=3721"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ottai-power.com\/es\/wp-json\/wp\/v2\/media\/3498"}],"wp:attachment":[{"href":"https:\/\/ottai-power.com\/es\/wp-json\/wp\/v2\/media?parent=3721"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ottai-power.com\/es\/wp-json\/wp\/v2\/product_brand?post=3721"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ottai-power.com\/es\/wp-json\/wp\/v2\/product_cat?post=3721"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ottai-power.com\/es\/wp-json\/wp\/v2\/product_tag?post=3721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}