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-31,5 ÐºÐ/2000 Ð Ñ Ð°ÐºÑ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: Investigation of the thermal regime of the contact system of the vacuum circuit breaker 35 kV-31.5 kA / 2000 A with an axial magnetic field in the nominal operating mode
Creators: name: ÐÑÑÐ¼Ð°Ð³Ð°Ð½Ð±ÐµÑÐ¾Ð², ÐÐ¹Ð±ÐµÐº
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: Ð°ÐºÑÐ¸Ð°Ð»ÑÐ½Ð¾Ðµ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ðµ Ð¿Ð¾Ð»Ðµ
Ð²Ð°ÐºÑÑÐ¼Ð½ÑÐ¹ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ
Ð²Ð°ÐºÑÑÐ¼Ð½Ð°Ñ Ð´ÑÐ³Ð¾Ð³Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð°Ñ ÐºÐ°Ð¼ÐµÑÐ°
ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
axial magnetic field
vacuum switch
vacuum arc-extinguishing chamber
contact system

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ 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. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ: 1. ÐÐ½Ð°Ð»Ð¸Ð· Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð²Ð°ÐºÑÑÐ¼Ð½ÑÑ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»ÐµÐ¹ Ñ Ð°ÐºÑÐ¸Ð°Ð»ÑÐ½ÑÐ¼ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÐ¼ Ð¿Ð¾Ð»ÐµÐ¼, ÐµÐ³Ð¾ Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ²Ð° Ð¸ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐºÐ¸. 2. ÐÐ½Ð°Ð»Ð¸Ð· Ð½Ð¾Ð¼Ð¸Ð½Ð°Ð»ÑÐ½ÑÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð²Ð°ÐºÑÑÐ¼Ð½Ð¾Ð¹ Ð´ÑÐ³Ð¾Ð³Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÐºÐ°Ð¼ÐµÑÑ. 3. ÐÐ·ÑÑÐµÐ½Ð¸Ðµ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð¾Ð² Ð´Ð»Ñ ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½ÑÑ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹. ÐÑÑÐ²Ð»ÐµÐ½Ð¸Ðµ Ð¸Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹, Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ² Ð¸ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐºÐ¾Ð². 4. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ ÑÐ°ÑÑÑÑÐ¾Ð² ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² Ð²Ð°ÐºÑÑÐ¼Ð½Ð¾Ð¹ Ð´ÑÐ³Ð¾Ð³Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÐºÐ°Ð¼ÐµÑÐµ, Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ COMSOL Multiphysics, ÐºÐ¾ÑÐ¾ÑÐ¾Ðµ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð¸Ñ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐµÐ»Ð¸. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ»Ð¾ Ð¸Ð·ÑÑÐµÐ½Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸Ð¸ ÐºÐ¾Ð½ÑÐ°ÐºÑÐ¾Ð² Ð½Ð° Ð°ÐºÑÐ¸Ð°Ð»ÑÐ½Ð¾Ðµ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ðµ Ð¿Ð¾Ð»Ðµ. ÐÑÐ»Ð¸ Ð²ÑÐ±ÑÐ°Ð½Ñ Ð½Ð¾Ð¼Ð¸Ð½Ð°Ð»ÑÐ½ÑÐµ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ Ð²Ð°ÐºÑÑÐ¼Ð½Ð¾Ð¹ Ð´ÑÐ³Ð¾Ð³Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÐºÐ°Ð¼ÐµÑÑ Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÑÐ½ ÑÐ°ÑÑÑÑ Ð² Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ðµ COMSOL Multiphysics. ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð»ÑÑ ÑÐµÐ¿Ð»Ð¾Ð²Ð¾Ð¹ ÑÐµÐ¶Ð¸Ð¼ ÐºÐ¾Ð½ÑÐ°ÐºÑÐ½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ñ Ð²Ð°ÐºÑÑÐ¼Ð½Ð¾Ð³Ð¾ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² Ð²Ð°ÐºÑÑÐ¼Ð½Ð¾Ð¹ Ð´ÑÐ³Ð¾Ð³Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ ÐºÐ°Ð¼ÐµÑÐµ. Ð¢ÐµÐ¿Ð»Ð¾Ð²ÑÐµ Ð¿ÑÐ¾ÑÐµÑÑÑ Ð±ÑÐ»Ð¾ ÑÐ¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ñ Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ Ð² COMSOL Multiphysics, Ð¿ÑÐ¸ÑÐ¿Ð¾ÑÐ¾Ð±Ð»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð´Ð»Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð². Ð¢Ð°Ðº Ð¶Ðµ Ð±ÑÐ»Ð¸ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¿ÑÐ¸ ÑÐ°Ð·Ð½ÑÑ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ, Ð±ÑÐ» Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½ Ð³ÑÐ°ÑÐ¸Ðº Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¾Ñ Ð¼Ð°ÐºÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾Ð¹ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ.
description: This work is devoted to the study of the thermal regime of the contact system of a vacuum circuit breaker. Tasks that were solved in the course of the work: 1. Analysis of the design features of vacuum circuit breakers with axial magnetic field, its advantages and disadvantages. 2. Analysis of the nominal parameters of the vacuum arc-extinguishing chamber. 3. Study of various materials for contact connections. Identification of their features, advantages and disadvantages. 4. Performing calculations of thermal processes in a vacuum arc extinguishing chamber using COMSOL Multiphysics software that is suitable for this purpose. In this paper, the influence of the contact geometry on the axial magnetic field was studied. The nominal parameters of the vacuum arc-extinguishing chamber were selected and calculated in the COMSOL Multiphysics program. The thermal regime of the contact system of the vacuum circuit breaker was investigated. As a result, the simulation of thermal processes in a vacuum arc-extinguishing chamber was carried out. The thermal processes were modeled and carried out in COMSOL Multiphysics, adapted for finite element analysis. The results were also obtained at different capacities, and a graph of the dependence of the power on the maximum temperature was plotted.