title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¸Ð¼Ð¸ÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¹ 10 ÐºÐ Ð¿ÑÐ¸ Ð¿Ð°ÑÐ°Ð»Ð»ÐµÐ»ÑÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð²Ð°ÐºÑÑÐ¼Ð½ÑÑ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»ÐµÐ¹ Ð² Ð°Ð²Ð°ÑÐ¸Ð¹Ð½Ð¾Ð¼ ÑÐµÐ¶Ð¸Ð¼Ðµ
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 simulation model of a power supply system for 10 kV substations with parallel operation of vacuum circuit breakers in emergency mode
Creators: name: ÐÐ¾ÑÐºÐ¾Ð², ÐÐ°Ð½Ð¸Ð»
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: Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ðµ
ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ Ð´ÑÐ³Ð°
Ð²Ð°ÐºÑÑÐ¼Ð½ÑÐ¹ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ
ÑÑÐµÐ· ÑÐ¾ÐºÐ°
overlapped
electric arc
vacuum switch
current cut

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description: n this paper, the analysis of emergency operation modes of electrical complexes operating at industrial enterprises was carried out. The main means of limiting overvoltage were considered. Due to the danger of switching overvoltage, there is a problem with the operation of vacuum circuit breakers. The cases when simultaneous switching of several vacuum switches in electrical complexes is possible are considered, such as devices for redundancy of switching off of the switch (URS), differential protection of tires (DSS) as the main RZ for the switchgear (RU) and collective disconnection of consumers connected to one bus system. Guidelines for the protection of electrical equipment were analyzed. A simulation model was created to recreate the process of overvoltage of parallel connected vacuum switches. The calculations were made by means of oscillograms of impulses of surge currents and surge pulses. After performing the analysis, you can see a repeatedly increasing overvoltage, which is summed with each switch connected in parallel. The relevant conclusions were drawn.