title: Ð ÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸ 330/110 ÐºÐ Ð¡ÐµÐ²ÐµÑÐ½Ð°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: Reconstruction of the substation 330/110 kV" Severnaya
Creators: name: ÐÐ°Ð¼ÑÑÐ¸Ð½, ÐÐ¸ÐºÐ¾Ð»Ð°Ð¹
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: 2023
Subjects: ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ñ
ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ðµ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð¾ ÑÑÑÑÐºÑÑÑÐ½Ð°Ñ ÑÑ ÐµÐ¼Ð°
Ð²ÑÐ±Ð¾Ñ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ
ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑ
ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐ¸Ðµ ÑÐ°ÑÑÐ¸
ÑÐ¸Ð»Ð¾Ð²ÑÐµ ÐºÐ°Ð±ÐµÐ»Ð¸
electrical substation
switchgear
structural diagram
equipment choice
switching devices
live parts
power cables

description: ÐÐ¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ» Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÑÐ½ Ð²ÑÐ±Ð¾Ñ ÐºÐ°Ð±ÐµÐ»ÐµÐ¹ Ð¾ÑÑÐ¾Ð´ÑÑÐ¸Ñ Ð¿ÑÐ¸ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹ ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð° 110 ÐºÐ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸ Ð¡ÐµÐ²ÐµÑÐ½Ð°Ñ. Ð ÑÐ¾Ð´Ðµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð° ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð° ÑÑÑÑÐºÑÑÑÐ½Ð°Ñ ÑÑÐµÐ¼Ð° ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð° Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸, Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÑ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸ Ð¸ Ð¿Ð¸ÑÐ°ÑÑÐµÐ¹ Ð¢Ð­Ð¦, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¿Ð¾ Ð¿ÑÐ¾Ð³Ð½Ð¾Ð·Ð¸ÑÑÐµÐ¼Ð¾Ð¼Ñ ÑÐ¾ÑÑÑ Ð¿Ð¾ÑÑÐµÐ±Ð»ÐµÐ½Ð¸Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð²ÑÐ±ÑÐ°Ð½Ñ ÑÐ¸Ð»Ð¾Ð²ÑÐµ ÐºÐ°Ð±ÐµÐ»Ð¸ Ð¸ Ð²ÑÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑÑÐ½ÑÐµ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ð¸. ÐÐ»Ñ Ð²ÑÐ±Ð¾ÑÐ° ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ¾Ð² Ð¸ ÑÐ¸Ð»Ð¾Ð²ÑÑ ÐºÐ°Ð±ÐµÐ»ÐµÐ¹ Ð°Ð½Ð°Ð»Ð¸ÑÐ¸ÑÐµÑÐºÐ¸ Ð±ÑÐ» Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½ ÑÐ¾Ðº ÑÑÑÑÑÐ°Ð·Ð½Ð¾Ð³Ð¾ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ: Ð´ÐµÐ¹ÑÑÐ²ÑÑÑÐµÐµ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ðµ Ð¿ÐµÑÐ¸Ð¾Ð´Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¾ÑÑÐ°Ð²Ð»ÑÑÑÐµÐ¹ Ð² Ð½Ð°ÑÐ°Ð»ÑÐ½ÑÐ¹ Ð¼Ð¾Ð¼ÐµÐ½Ñ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð¸ Ðº Ð¼Ð¾Ð¼ÐµÐ½ÑÑ Ð½Ð°ÑÐ°Ð»Ð° ÑÐ°ÑÑÐ¾Ð¶Ð´ÐµÐ½Ð¸Ñ ÐºÐ¾Ð½ÑÐ°ÐºÑÐ¾Ð² Ð´ÑÐ³Ð¾Ð³Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÑÑÑÐ¾Ð¹ÑÑÐ²Ð° Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ, ÑÐ´Ð°ÑÐ½ÑÐ¹ ÑÐ¾Ðº, Ð°Ð¿ÐµÑÐ¸Ð¾Ð´Ð¸ÑÐµÑÐºÐ°Ñ ÑÐ¾ÑÑÐ°Ð²Ð»ÑÑÑÐ°Ñ ÑÐ¾ÐºÐ° Ð¸ Ð¿Ð¾Ð»Ð½ÑÐ¹ ÑÐ¾Ðº. ÐÑÐ±ÑÐ°Ð½Ð½ÑÐµ ÐºÐ°Ð±ÐµÐ»Ð¸ Ð¸ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑ Ð¾Ð±Ð»Ð°Ð´Ð°ÑÑ ÑÑÐ¾Ð¹ÐºÐ¾ÑÑÑÑ Ðº Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð¼Ñ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ ÑÐ¾ÐºÐ¾Ð² ÑÑÑÐ¶ÐµÐ»ÑÐ½Ð½Ð¾Ð³Ð¾ ÑÐµÐ¶Ð¸Ð¼Ð°, Ð° ÑÐ°ÐºÐ¶Ðµ Ðº ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð¼Ñ Ð¸ ÑÐ»ÐµÐºÑÑÐ¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¼Ñ Ð²Ð¾Ð·Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ ÑÐºÐ²Ð¾Ð·Ð½ÑÑ ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ, Ð¿Ð¾ÑÑÐ¾Ð¼Ñ ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ñ Ð½Ð°Ð´ÑÐ¶Ð½Ð¾ ÑÐ½Ð°Ð±Ð¶Ð°ÑÑ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½ÐµÑÐ³Ð¸ÐµÐ¹ Ð¿Ð¸ÑÐ°ÐµÐ¼ÑÐµ Ð¿ÑÐ¸ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹.
description: Based on the results of the final qualifying work, the selection of cables for outgoing connections of the 110 kV switchgear of the Severnaya substation was made. In the course of the work, a block diagram of the substation switchgear was drawn up, the parameters of the equipment of the substation and the supply CHP were determined, and power cables and high-voltage switches were selected based on the predicted increase in power consumption. To select switching devices and power cables, the current of a three-phase short circuit was analytically determined: the effective value of the periodic component at the initial moment of the occurrence of a short circuit and by the time the contacts of the arcing device of the circuit breaker began to diverge, the shock current, the aperiodic component of the current and the total current. The selected cables and switching devices are resistant to long-term exposure to heavy duty currents, as well as to thermal and electrodynamic effects of through short-circuit currents, therefore they are able to reliably supply power to fed connections.