{"id":704,"date":"2015-12-16T14:59:40","date_gmt":"2015-12-16T12:59:40","guid":{"rendered":"http:\/\/elth.ucv.ro\/fisiere\/anale\/?p=704"},"modified":"2015-12-16T14:59:40","modified_gmt":"2015-12-16T12:59:40","slug":"aspects-regarding-influences-of-voltage-and-resistant-torque-on-asynchronous-motors-operation","status":"publish","type":"post","link":"https:\/\/elth.ucv.ro\/fisiere\/anale\/?p=704","title":{"rendered":"Aspects Regarding Influences of Voltage and Resistant Torque on Asynchronous Motors Operation"},"content":{"rendered":"<h3 style=\"text-align: center;\"><em>Abstract\u00a0<\/em><\/h3>\n<table style=\"height: 448px;\" border=\"0\" width=\"621\" bgcolor=\"#FFFFFF\">\n<tbody>\n<tr>\n<td width=\"562\">In this paper there are analyzed a series of\u00a0dynamic regimes that occur in the case when a phase of an\u00a0asynchronous motor is accidentally interrupted and in the\u00a0case when the resistant torque increases by step. For these\u00a0situations there have been carried out, starting from the\u00a0motor equations written in the two-axes theory, two\u00a0Simulink programs (detailed in the paper). With their help,\u00a0for a motor rated at1,2 kW, there have been obtained\u00a0relevant simulations together with conclusions emerging\u00a0from them. Thus, in the case when a phase was interrupted\u00a0it results that: the interruption of a phase leads to a\u00a0dynamic regime that is relatively quickly stabilized; this\u00a0stabilized regime is characterized by high values of currents,\u00a0slight decrease of the rotor speed, small oscillations of speed,\u00a0important oscillations of torque. In the case when the\u00a0resistant torque is modified by step there have been resulted\u00a0the following conclusions: a reduced torque shock leads to\u00a0increased values of the currents and to a slight decrease of<br \/>\nthe speed (after a few oscillations); an increased value of the\u00a0inertia moment leads to an increased number of current\u00a0oscillations in dynamic regime but also to the disappearance\u00a0of the speed and torque oscillations when a torque shock\u00a0occurs; for very high resistant torques the maximum torque\u00a0developed by the motor becomes smaller than the resistant\u00a0one which causes the decrease of the speed towards zero,\u00a0finally reaching, if the protections do not cut, the shortcircuit\u00a0regime; the simulation program conceived here can\u00a0also be used for establishing the value of the motor\u00a0maximum torque; the simulations have been confirmed, as\u00a0essential elements, quantitatively and qualitatively, by\u00a0experiment.<\/td>\n<td width=\"66\"><a href=\"http:\/\/elth.ucv.ro\/fisiere\/anale\/2015\/18.pdf\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter  wp-image-191\" src=\"http:\/\/elth.ucv.ro\/fisiere\/anale\/wp-content\/uploads\/2015\/03\/images1.jpg\" alt=\"images\" width=\"100\" height=\"104\" \/><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Abstract\u00a0 In this paper there are analyzed a series of\u00a0dynamic regimes that occur in the case when a phase of an\u00a0asynchronous motor is accidentally interrupted and in the\u00a0case when the resistant torque increases by step. For these\u00a0situations there have been carried out, starting from the\u00a0motor equations written in the two-axes theory, two\u00a0Simulink programs (detailed in &hellip; <a href=\"https:\/\/elth.ucv.ro\/fisiere\/anale\/?p=704\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Aspects Regarding Influences of Voltage and Resistant Torque on Asynchronous Motors Operation<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-704","post","type-post","status-publish","format-standard","hentry","category-fara-categorie"],"_links":{"self":[{"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=\/wp\/v2\/posts\/704","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=704"}],"version-history":[{"count":1,"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=\/wp\/v2\/posts\/704\/revisions"}],"predecessor-version":[{"id":705,"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=\/wp\/v2\/posts\/704\/revisions\/705"}],"wp:attachment":[{"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=704"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=704"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/elth.ucv.ro\/fisiere\/anale\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=704"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}