![]() Equations 1 and 2 show that the maximum short-circuit current increases with decreasing "uk" (voltage-stiff) and the maximum short-circuit current decreases with increasing "u sc" (voltage-soft). When transformers are used, they are often referred to as "voltage-stiff" or "voltage-soft" transformers with regard to the behaviour of the secondary voltage during load changes. When using equation 1 and equation 2, it should be noted that "u sc" must be entered as a percentage in the equations for the relative short-circuit voltage. The following equations 1 and 2 show that the estimation can be done for the primary as well as for the secondary side. The estimation is therefore made to the "safe side". The determined current value "I k_max" is in practice somewhat higher than the real short-circuit current "I k_max_real" which actually occurs. The following formulas are used to estimate the maximum short-circuit current " Ik_max" for three-phase medium-voltage transformers. On the other hand, a typical application is the plausibility check of the parameters of the high current stage of a transformer protection relay during the commissioning or repeat protection test, for example with our relay test system ARTES. It must also be taken into account that typical protection current transformers used in medium voltage can transmit currents up to 40 times higher than the rated current of the transformer in the event of a short circuit. On the one hand, to be able to estimate the current carrying capacity of input circuits, such as in the KoCoS fault recorder system SHERLOG. In practice, the value of the maximum short-circuit current "I sc_max" of a transformer is often needed. Mantenimiento y pruebas a interruptores.Instalación y puesta en marcha de equipo secundario.Servicios y pruebas secundarias y a relevadores de protección.Mediciones de perfiles en obleas de silicio.229910052710 silicon Inorganic materials 0.000 title claims abstract description 106. ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Vesuvius France SA filed Critical Vesuvius France SA Priority to PCT/EP2002/013850 priority Critical patent/WO2004053207A1/en Application granted granted Critical Publication of ES2269794T3 publication Critical patent/ES2269794T3/en Status Active legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee Vesuvius France SA Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Inventor Koichi Shimizu Frederic Caillaud Kazumi Tani Yoshifumi Kobayashi Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number ES02791784T Other languages Spanish ( es) CONTAINER FOR SILICON CONTAINMENT AND PROCEDURE FOR PRODUCTION.ĭownload PDF Info Publication number ES2269794T3 ES2269794T3 ES02791784T ES02791784T ES2269794T3 ES 2269794 T3 ES2269794 T3 ES 2269794T3 ES 02791784 T ES02791784 T ES 02791784T ES 02791784 T ES02791784 T ES 02791784T ES 2269794 T3 ES2269794 T3 ES 2269794T3 Authority ES Spain Prior art keywords silicon coating container cermet composite Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
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