title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¸ Ð¼Ð¾Ð»Ð½Ð¸ÐµÐ²ÑÑ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð² ÑÐµÑÐ¸ 220 ÐºÐ Ñ ÐÐ Ð£Ð­ 220 ÐºÐ. ÐÑÐ±Ð¾Ñ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº Ð·Ð°ÑÐ¸ÑÐ½ÑÑ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ¾Ð²
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: Research of switching and lightning overvoltages in a 220 kV network with a 220 kV switchgear. Selecting the characteristics of protective devices
Creators: name: ÐÐ¾Ð»ÐµÐ², ÐÐ°Ð²ÐµÐ»
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ÑÐ¾Ð·Ñ
ÐÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ (ÑÐ»ÐµÐºÑÑ.)
ÐºÐ°Ð±ÐµÐ»Ð¸ Ñ Ð¡ÐÐ­-Ð¸Ð·Ð¾Ð»ÑÑÐ¸ÐµÐ¹
Ð³ÑÐ¾Ð·Ð¾Ð²ÑÐµ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½ÑÐµ Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐ¸ÑÐµÐ»Ð¸ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹
ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
ÐºÐ¾Ð¾ÑÐ´Ð¸Ð½Ð°ÑÐ¸Ñ Ð¸Ð·Ð¾Ð»ÑÑÐ¸Ð¸
XLPE-insulated cables
lightning overvoltages
nonlinear surge arresters
switching overvoltages
insulation coordination

description: ÐÑÐ±Ð¾Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº Ð·Ð°ÑÐ¸ÑÐ½ÑÑ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ¾Ð²Â». ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¸ Ð¼Ð¾Ð»Ð½Ð¸ÐµÐ²ÑÑ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð² ÑÐµÑÐ¸ 220 ÐºÐ, Ð° ÑÐ°ÐºÐ¶Ðµ ÐºÐ¾Ð¾ÑÐ´Ð¸Ð½Ð°ÑÐ¸Ð¸ Ð¸Ð·Ð¾Ð»ÑÑÐ¸Ð¸ Ð¸ Ð²ÑÐ±Ð¾ÑÑ Ð·Ð°ÑÐ¸ÑÐ½ÑÑ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ¾Ð². ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ñ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼Ð¾Ð¹ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐµÑÐ¸ Ð±ÑÐ»Ð° Ð²Ð·ÑÑÐ° ÑÐµÑÑ 220 ÐºÐ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¹ ÐÐÐ-7, ÐÐÐ-7Ð, ÐÐÐ-7Ð Â«Ð¡ÐµÐ²ÐµÑÑÑÐ°Ð»ÑÂ». Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ° EMTP-RV Ð±ÑÐ»Ð¸ ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÑÐµÐ¼Ñ Ð·Ð°Ð¼ÐµÑÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð² ÑÐµÑÐ¸ 220 ÐºÐ. Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÐºÐ¶Ðµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð¾ Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²ÑÐ±Ð¾ÑÐ° ÑÐ¿Ð¾ÑÐ¾Ð±Ð° Ð·Ð°Ð·ÐµÐ¼Ð»ÐµÐ½Ð¸Ñ ÑÐºÑÐ°Ð½Ð¾Ð² Ð´Ð»Ñ ÐºÐ°Ð±ÐµÐ»ÐµÐ¹ Ñ Ð¸Ð·Ð¾Ð»ÑÑÐ¸ÐµÐ¹ Ð¸Ð· ÑÑÐ¸ÑÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸ÑÑÐ¸Ð»ÐµÐ½Ð°. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð±ÑÐ»Ð° Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð° Ð°ÐºÑÑÐ°Ð»ÑÐ½Ð°Ñ ÑÑÐµÐ¼Ð° Ð·Ð°Ð·ÐµÐ¼Ð»ÐµÐ½Ð¸Ñ ÑÐºÑÐ°Ð½Ð¾Ð² ÐºÐ°Ð±ÐµÐ»ÐµÐ¹, Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð¾Ð¿Ð°ÑÐ½ÑÐµ ÑÑÐ¾Ð²Ð½Ð¸ Ð³ÑÐ¾Ð·Ð¾Ð²ÑÑ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹. Ð¡ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð±ÑÐ»Ð¸ Ð²ÑÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸Ñ Ðº Ð·Ð°ÑÐ¸ÑÐ½ÑÐ¼ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ°Ð¼, ÑÑÑÐ°Ð½Ð°Ð²Ð»Ð¸Ð²Ð°ÐµÐ¼ÑÐ¼ Ð² Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼Ð¾Ð¹ ÑÐµÑÐ¸ 220 ÐºÐ.
description: Choice of charac-teristics of protective devices ". This work is devoted to the study of switching and lightning voltages in a 220 kV electrical network, as well as the coordination of insulation and the selec-tion of protective devices. The studied electrical network was based on the 220 kV electrical network of substations GPP-7, GPP-7A, GPP-7B "Severstal". In the course of the work, using the EMTP-RV software package, substitution schemes were drawn up for the study of overvoltages in the 220 kV electrical network. This work also provides a rationale for the choice of the method of grounding screens for cables with XLPE insulation. As a result of the study, the current scheme of grounding of cable shields was determined. Dangerous levels of lightning overvoltages were identified. Technical requirements for protective devices installed in the investigated 220 kV electrical network were developed by analyzing switching overvoltages.