title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐµÐ¶Ð¸Ð¼Ð° ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð²Ð°ÐºÑÑÐ¼Ð½Ð¾Ð³Ð¾ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ 35 ÐºÐ-40 ÐºÐ/3150 Ð Ñ ÑÐ°Ð´Ð¸Ð°Ð»ÑÐ½ÑÐ¼ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÐ¼ Ð¿Ð¾Ð»ÐµÐ¼ Ð² Ð½Ð¾Ð¼Ð¸Ð½Ð°Ð»ÑÐ½Ð¾Ð¼ ÑÐµÐ¶Ð¸Ð¼Ðµ ÑÐ°Ð±Ð¾ÑÑ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Research of the thermal conditions of the contact system of vacuum circuit breaker 35 kV-40 kA/3150 A with radial magnetic field in the nominal mode
Creators: name: Ð¡Ð°ÑÐ¸Ð½, Ð ÑÑÐ»Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð²Ð°ÐºÑÑÐ¼Ð½ÑÐ¹ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ
ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð¹ ÑÐµÐ¶Ð¸Ð¼
ÑÐ°Ð´Ð¸Ð°Ð»ÑÐ½Ð¾Ðµ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ðµ Ð¿Ð¾Ð»Ðµ
ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½Ð°Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑ
vacuum circuit breaker
thermal conditions
radial magnetic field
contact system

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description: This work is devoted to the analysis and modeling of the thermal conditions of the contact system of vacuum circuit braker 35 kV-40 kA/3150 A with radial magnetic field in the nominal mode. The object of research is the effect of diameter of conductor on the thermal processes in the contact system. Also in this work, the materials used in contact system are considered; an overview of the existing designs of vacuum circuit breaker and the principle of their operation is carried out. A model of contact system with conductor is built, and their structure is considered. A mathematical model of electrothermal processes has been created, including the geometry of the computational domain, boundary conditions, materials of structural elements, and a description of the model itself. Modules, submodules, and functions in COMSOL Multiphysics are shown, with detailed images and graphs. Series of calculations were carried out for different diameters of the conductor. The images showing the temperature distribution, the distribution of the scalar electric potential, the current density for each of the considered diameters, and their analysis are demonstrated. Also, in the work there is an analysis of the energy released through the current lead and due to radiation.