{"id":120,"date":"2011-07-31T16:57:02","date_gmt":"2011-07-31T16:57:02","guid":{"rendered":"http:\/\/192.168.1.50\/Themes\/2012\/Nano2\/Website_WP\/?page_id=120"},"modified":"2018-06-12T15:48:04","modified_gmt":"2018-06-12T18:48:04","slug":"estudios","status":"publish","type":"page","link":"https:\/\/www.inproelec.com\/en\/estudios\/","title":{"rendered":"Selectivity Studies of Electrical Protections"},"content":{"rendered":"<p class=\"matsn1\">Outstanding Selectivity Studies of Electrical Protections in which Inproelec has participated.<\/p>\r\n<ul style=\"font-weight:400;list-style-type:none; background-color:white;margin-top:30px;border-radius: 25px;padding-top:1em;padding-right:1em;padding-bottom:1em;\">\t<li style=\"border-bottom: 1px solid #ccc;padding-bottom:10px;\"><a class=\"matsn\" href=\"#i1\">Generator-Transformer Groups \u2013 Alicur\u00e1 Hydraulic Power Plant<\/a><\/li>\r\n\t<li style=\"padding-bottom:10px;border-bottom: 1px solid #ccc\"><a class=\"matsn\" href=\"#i2\">Generator-Transformer Group \u2013 Atucha I Nuclear Power Plant<\/a><\/li>\r\n\t<li style=\"padding-bottom:10px;border-bottom: 1px solid #ccc\"><a class=\"matsn\" href=\"#i3\">Combined Cycle Loma de la Lata \u2013 Loma de la Lata Thermal Power Station<\/a><\/li>\r\n\t<li style=\"padding-bottom:10px;border-bottom: 1px solid #ccc\"><a class=\"matsn\" href=\"#i4\">E.T. Rinc\u00f3n de Los sauces 132 kV \u2013 Secco Thermal Power Station<\/a><\/li>\r\n\t<li><a class=\"matsn\" href=\"#i5\">Combined Cycle 355 MVA Transformers \u2013 Central Puerto Thermal Power Plant<\/a><\/li><\/ul>\r\n<br\/><hr\/>\r\n<div id=\"i1\">\r\n<h3 class=\"uk-margin-top-remove\">Generator-Transformer Groups \u2013 Alicur\u00e1 Hydraulic Power Plant<\/h3>\r\n<p class=\"matsn1\">Client: <strong>ABB S.A.<\/strong><\/p><hr>\r\n<p class=\"matsn\">Since its construction the four 280 MVA Generator-Transformer Groups of Alicur\u00e1 Hydro Power Plant were in operation protected by its original protection equipment.<\/p><p class=\"matsn\">\r\nTime aging, the obsolescence of components and the lack of spare parts, made necessary the change of original protection system by new last generation micro processed one.<\/p><p class=\"matsn\">\r\nThe project consisted in the preparation of Protection Selectivity Studies of all functions built into the new ABB terminals REG 670 and RET 670.<\/p><p class=\"matsn\">\r\nMore than 30 protection functions were studied and adjusted for the Generator, main Power Transformer and also for Auxiliary Services.<\/p><p class=\"matsn\">\r\nThe project included the realization of system modeling, Power of Flow and Short Circuit studies needed to be taken as a basis for the definition of the settings.<\/p><\/div>\r\n<br\/><hr><br\/><div id=\"i2\">\r\n<h3 class=\"uk-margin-top-remove\">Generator-Transformer Group \u2013 Atucha I Nuclear Power Plant <\/h3>\r\n<p class=\"matsn1\">Client: <strong>ABB S.A.<\/strong><\/p><hr>\r\n<p class=\"matsn\">Since its construction 425 MVA Generator-Transformer Groups of Atucha I Nuclear Power Plant was in operation protected by its original protection equipment.<\/p><p class=\"matsn\">\r\nTime aging, the obsolescence of components and the lack of spare parts, made necessary to replace original protection system with a new generation digital one.<\/p><p class=\"matsn\">\r\nThe project consisted in the preparation of Protection Selectivity Studies of all functions built into the new ABB terminals REG 670 and RET 670.<\/p><p class=\"matsn\">\r\nMore than 30 protection functions were studied and adjusted for the Generator and also for Main and Unit Power Transformers.<\/p><p class=\"matsn\">\r\nThe project included the realization of system modeling, Power of Flow and Short Circuit studies needed to be taken as a basis for the definition of the settings.<\/p><\/div>\r\n<br\/><hr><br\/><div id=\"i3\">\r\n<h3 class=\"uk-margin-top-remove\">Combined Cycle Loma de la Lata \u2013 Loma de la Lata Thermal Power Station   <\/h3>\r\n<p class=\"matsn1\">Client: <strong>TRANSBA S.A.<\/strong><\/p><hr>\r\n<p class=\"matsn\">The closure of open-cycle of Loma de la Lata Power Plant, for its operation as a cycle combined unit, required the installation of a new steam turbine which takes advantage of the existing gas turbines exhaust gases.<\/p><p class=\"matsn\">\r\nThe power of the new steam turbine is handed over to the 500 kV busbar of the station, through a new 235 MVA Power Transformer.<\/p><p class=\"matsn\">\r\nThe purpose of this study focused on the definition of the protection settings of new 5TR02 Power Transformer and new 5DL 02 circuit breaker, corresponding to the new 02 bay of Loma de la Lata Thermal Power Plant.<\/p><p class=\"matsn\">\r\nAdjusted protections were all ABB, models RET 670 (5TR02 transformer protection), REB 010 (5DL 02 Breaker Failure Protection) and Combiflex (5DL 02 Pole Discordance).\r\n<\/p><\/div>\r\n<br\/><hr><br\/><div id=\"i4\">\r\n<h3 class=\"uk-margin-top-remove\">E.T. Rinc\u00f3n de Los sauces 132 kV \u2013 Secco Thermal Power Station<\/h3>\r\n<p class=\"matsn1\">Client: <strong>TRANELSA S.A.<\/strong><\/p><hr>\r\n<p class=\"matsn\">For the purposes of incorporation into the National Interconnected System of new Secco Thermal Power Plant, in Neuqu\u00e9n province, the current 132 kV high voltage line linking Puesto Hern\u00e1ndez, Medanito and Se\u00f1al Picada Substations, was divided between Puesto Hern\u00e1ndez and Puesto de Seccionamiento (a node that links Medanito with Se\u00f1al Picada). <\/p><p class=\"matsn\">\r\nThe division of this line allows the connection of the new Substation called Rinc\u00f3n de los Sauces, whose 40 MVA power transformer will allows supplying26,6 MW to Comahue Distribution System, in the North of Neuqu\u00e9n province, provided by Secco Power Plant, equipped with 19 moto generators of 1.4 MW each. <\/p><p class=\"matsn\">\r\nThe project consisted in the study and settings calculation of all electrical protections in the new E.T. and in both line ends (Puesto Hern\u00e1ndez and Medanito Substations). <\/p><p class=\"matsn\">\r\nProtections included in this study were:<br\/>\r\n\u2013 Siemens 7SA Line distance protection<br\/>\r\n\u2013 ABB REL 511 Line distance protection<br\/>\r\n\u2013 ABB LZ92 Line distance protection<br\/>\r\n\u2013 Siemens 7UT Transformer differential protection<br\/>\r\n\u2013 Siemens 7SJ Overcurrent protection<br\/>\r\n\u2013 Siemens 7VK Synchrocheck relay<br\/>\r\n\u2013 General Electric F650 Overcurrent Protection <\/p>\r\n<\/div>\r\n<br\/><hr><br\/><div id=\"i5\">\r\n<h3 class=\"uk-margin-top-remove\">Combined Cycle 355 MVA Transformers \u2013 Central Puerto Thermal Power Plant<\/h3>\r\n<p class=\"matsn1\">Client: <strong>ELECTROINGENIER\u00cdA S.A.<\/strong><\/p><hr>\r\n<p class=\"matsn\">Technical problems and repeated failures in the 768 MW original Power Transformers of Central Puerto Cycle Combined required the replacement of former transformers by new ones.<\/p><p class=\"matsn\">\r\nThe project consisted in the elaboration of the protection adjustments of the three new transformers and the adjustment services, and the testing of the same in the work.<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>Estudios destacados de Coordinaci\u00f3n de Protecciones en los cuales Inproelec ha participado. Grupos Generador-Transformador &#8211; Central Hidr\u00e1ulica Alicur\u00e1 Grupo Generador-Transformador &#8211; Central Nuclear Atucha I Ciclo Combinado Loma de la Lata &#8211; Central T\u00e9rmica Loma de la Lata E.T. Rinc\u00f3n de Los Sauces 132 kV &#8211; Central T\u00e9rmica Secco Transformadores de 355 MVA de Ciclo [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-120","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.inproelec.com\/en\/wp-json\/wp\/v2\/pages\/120","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.inproelec.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.inproelec.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.inproelec.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.inproelec.com\/en\/wp-json\/wp\/v2\/comments?post=120"}],"version-history":[{"count":7,"href":"https:\/\/www.inproelec.com\/en\/wp-json\/wp\/v2\/pages\/120\/revisions"}],"predecessor-version":[{"id":837,"href":"https:\/\/www.inproelec.com\/en\/wp-json\/wp\/v2\/pages\/120\/revisions\/837"}],"wp:attachment":[{"href":"https:\/\/www.inproelec.com\/en\/wp-json\/wp\/v2\/media?parent=120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}