title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ ÑÐ°ÑÑÐµÑÐ° ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐ¸Ñ ÑÐ°ÑÑÐµÐ¹ ÐÐ Ð£Ð­-35 ÐºÐ, ÑÐ¾Ðº 630 Ð
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of a method for calculating the thermal state of live parts of switchgear-35 kV, current 630 A
Creators: name: ÐÑÐºÐ¸ÐµÐ², 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: 2020
Subjects: ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ðµ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ðµ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð¾
ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½Ð¾Ðµ ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ
ÑÐ±Ð¾ÑÐ½Ð°Ñ ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐ°Ñ ÑÐ¸Ð½Ð°
ÑÐµÐ¿Ð»Ð¾ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ°ÑÑÐµÑ
complete distribution device
contact resistance
prefabricative current bus
thermal calculation

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð½Ð°Ð³ÑÐµÐ²Ð° ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐµÐ¹ ÑÐ±Ð¾ÑÐ½Ð¾Ð¹ ÑÐ¸Ð½Ñ Ð¸ ÑÑÐ°Ð»ÑÐ½ÑÑ ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½ÑÑ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹ Ð²Ð½ÑÑÑÐ¸ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½Ð¾Ð³Ð¾ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð°. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÐ·ÑÑÐµÐ½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾ÑÐ¸Ð·Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ² Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð², Ð¸Ð· ÐºÐ¾ÑÐ¾ÑÑÑ Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ñ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ ÑÐ»ÐµÐ¼ÐµÐ½ÑÑ ÑÐ±Ð¾ÑÐ½Ð¾Ð¹ ÑÐ¸Ð½Ñ. 2. Ð¡Ð¾Ð·Ð´Ð°Ð½Ð¸Ðµ Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐµÐ¹ ÑÐ°ÑÑÐ¸. 3. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸Ð¸ Ð² Comsol Multiphysics Ñ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸ÐµÐ¼ Ð² Ð½ÐµÐ¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð½Ð°Ð³ÑÐµÐ²Ð° ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐµÐ¹ ÑÐ¸Ð½Ñ. 4. Ð¡ÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ Ð´Ð°Ð½Ð½ÑÑ, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð¿ÑÐ¸ Ð¿Ð¾Ð¼Ð¾ÑÐ¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Comsol Multiphysics Ñ Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½ÑÐ¼Ð¸ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÑÐ¼Ð¸. Ð ÑÐ¾Ð´Ðµ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð²Ð¾ÑÐ¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ð° Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ, ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÐµÑ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÑÑÐ¸ Ð¿ÑÐ¾ÑÐµÑÑ Ð½Ð°Ð³ÑÐµÐ²Ð° ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð² ÐÐ Ð£Ð­ Ñ ÑÐµÐ»ÑÑ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð´Ð°Ð½Ð½ÑÑ Ð¾ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐµ Ð½Ð° Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ¸ ÑÐ±Ð¾ÑÐ½Ð¾Ð¹ ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐµÐ¹ ÑÐ¸Ð½Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð² Ð¼ÐµÑÑÐ°Ñ ÐºÑÐµÐ¿Ð»ÐµÐ½Ð¸Ñ ÐµÐµ ÑÐ°ÑÑÐµÐ¹ Ð´ÑÑÐ³ Ñ Ð´ÑÑÐ³Ð¾Ð¼. ÐÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ ÑÐ°ÑÑÐµÑÐ° ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐµÐ¹ ÑÐ°ÑÑÐ¸. ÐÐ½Ð°Ð»Ð¸Ð· Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ Comsol Multiphysics, Ð¾ÑÐ½Ð°ÑÐµÐ½Ð½Ð¾Ð³Ð¾ Ð±Ð°Ð·Ð°Ð¼Ð¸ Ð´Ð°Ð½Ð½ÑÑ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼ÑÑ ÑÐµÑÐ¼Ð¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð². Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð° Ð¸ ÑÐµÑÐµÐ½Ð¸Ñ, Ð¸Ð· ÐºÐ¾ÑÐ¾ÑÐ¾Ð³Ð¾ Ð¸Ð·Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð° ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐ°Ñ ÑÐ¸Ð½Ð°, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ ÑÐµÐ¿Ð»Ð¾Ð²ÑÐµ ÑÐ°ÑÑÐµÑÑ. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¼Ð°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ, Ð¿ÑÐ¸ Ð¿Ð¾Ð¼Ð¾ÑÐ¸ ÐºÐ¾ÑÐ¾ÑÐ¾Ð¹, Ð¿ÑÐ¾ÐµÐºÑÐ½ÑÐµ Ð³ÑÑÐ¿Ð¿Ñ Ð¼Ð¾Ð³ÑÑ Ð¾ÑÑÑÐµÑÑÐ²Ð¸ÑÑ Ð¿Ð¾Ð´Ð±Ð¾Ñ Ð¿Ð¾Ð´ÑÐ¾Ð´ÑÑÐ¸Ñ ÑÐ°Ð·Ð¼ÐµÑÐ¾Ð² ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐµÐ¹ ÑÐ¸ÑÑÐµÐ¼Ñ ÐÐ Ð£, ÑÐ°Ðº, ÑÑÐ¾Ð±Ñ ÑÑÑÐ°Ð½Ð¾Ð²Ð¸Ð²ÑÐ°ÑÑÑ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ° ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¾Ð²Ð°Ð»Ð° Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½Ð¾-ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¼ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÑÐ¼.
description: The given work is devoted to studying of mathematical modeling of the heating process of a busbar and steel contact joints inside a complete switchgear. The research set the following targets: 1. The study of the thermophysical properties of the materials from which the main elements of the busbar are made. 2. Creating a geometric model of the current-carrying part. 3. The study of geometry in Comsol Multiphysics with the construction of a model for heating the busbar. 4. Comparison of data obtained using modeling in Comsol Multiphysics with standard indicators. In the course of this work, a mathematical model is reproduced, which allows the process of heating the switchgear elements to produce temperature data on the surface of the busbar, as well as in the places where its parts are attached to each other. The development of methods for calculating the thermal state of the current-carrying part is presented. The analysis was carried out by mathematical modeling using Comsol Multiphysics software, equipped with databases of necessary thermodynamic parameters. As a result, the influence of the material and the section from which the busbar is made was analyzed, and thermal calculations were performed. A mathematical model has been developed, with the help of which, design teams can select the appropriate dimensions of the switchgear current-carrying system, so that the steady-state temperature corresponds to the normative and technical indicators.