title: ÐÐ»Ð¸ÑÐ½Ð¸Ðµ ÑÐºÐ¸Ð½-ÑÑÑÐµÐºÑÐ° Ð¸ ÑÑÑÐµÐºÑÐ° Ð±Ð»Ð¸Ð·Ð¾ÑÑÐ¸ Ð½Ð° Ð²ÑÐ±Ð¾Ñ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ 0,4 ÐºÐ Ð² ÑÐ¸ÑÑÐµÐ¼Ð°Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ Ð¢Ð­Ð¦
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: The influence of the skin effect and proximity effect on the choice of 0.4 kV equipment in the systems of own needs of the CHPP
Creators: name: Ð¢ÐµÑÐµÑÐºÐ¾Ð², ÐÐ²Ð°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: Ð¢Ð­Ð¦
ÑÐ¾ÐºÐ¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ
Ð²ÑÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑÑÐ½Ð¾Ðµ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ
ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÐµ Ð½ÑÐ¶Ð´Ñ
ÑÐºÐ¸Ð½-ÑÑÑÐµÐºÑ
Ð¿Ð¾Ð²ÐµÑÑ Ð½Ð¾ÑÑÐ½ÑÐ¹ ÑÑÑÐµÐºÑ
ÑÑÑÐµÐºÑ Ð±Ð»Ð¸Ð·Ð¾ÑÑÐ¸
thermal power plants
short-circuit currents
high-voltage equipment
own needs
skin effect
surface effect
proximity effect

description: Ð¦ÐµÐ»ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ ÑÑÑÐµÐºÑÐ° Ð±Ð»Ð¸Ð·Ð¾ÑÑÐ¸ Ð¸ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ½Ð¾Ð³Ð¾ ÑÑÑÐµÐºÑÐ° Ð½Ð° ÐºÐ°Ð±ÐµÐ»Ð¸ 0,4 ÐºÐ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ ÑÑÐ°Ð½ÑÐ¸Ð¸, ÐºÐ¾ÑÐ¾ÑÑÐµ Ð¿ÑÐ¾Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¿Ð°ÑÐ°Ð»Ð»ÐµÐ»ÑÐ½Ð¾ Ð´ÑÑÐ³ Ð´ÑÑÐ³Ñ Ð¸ Ð¿Ð¸ÑÐ°ÑÑ ÑÐµÐºÑÐ¸Ð¸ Ð Ð£-380 Ð. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÐ°ÑÑÐµÑÑ ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð´Ð»Ñ ÑÑÐ°Ð½ÑÐ¸Ð¸ ÐÐ¢Ð­Ð¦-1 Â«ÐÐÐÂ», Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð¸Ð¸ ÐºÐ¾ÑÐ¾ÑÑÑ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ Ð²ÑÐ±Ð¾Ñ Ð½Ð¾Ð²Ð¾Ð³Ð¾ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð²Ð·Ð°Ð¼ÐµÐ½ ÑÐ¶Ðµ Ð¸Ð¼ÐµÑÑÐµÐ³Ð¾ÑÑ Ð½Ð° ÑÑÐ°Ð½ÑÐ¸Ð¸. Ð Ð¸Ð¼ÐµÐ½Ð½Ð¾, Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½ Ð²ÑÐ±Ð¾Ñ Ð²ÑÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑÑÐ½ÑÑ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ¾Ð², ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐ¸Ñ ÑÐ°ÑÑÐµÐ¹, Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½ÑÑ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ¾Ð² ÑÐ¾ÐºÐ° Ð¸ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»ÐµÐ¹. Ð¢Ð°ÐºÐ¶Ðµ Ð¿ÑÐ¾Ð²ÐµÑÐµÐ½Ñ Ð½Ð° ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÑÑ ÑÑÐ¾Ð¹ÐºÐ¾ÑÑÑ Ð¸ Ð½ÐµÐ²Ð¾Ð·Ð³Ð¾ÑÐ°ÐµÐ¼Ð¾ÑÑÑ ÐºÐ°Ð±ÐµÐ»Ð¸ Ð² ÑÐµÑÐ¸ 0,4 ÐºÐ. ÐÐ»Ñ ÐºÐ°Ð±ÐµÐ»ÐµÐ¹, Ð¿Ð¸ÑÐ°ÑÑÐ¸Ñ ÑÐµÐºÑÐ¸Ð¸ Ð Ð£-380 Ð, ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ð¾ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ½Ð¾Ð³Ð¾ ÑÑÑÐµÐºÑÐ° Ð¸ ÑÑÑÐµÐºÑÐ° Ð±Ð»Ð¸Ð·Ð¾ÑÑÐ¸. ÐÐ¾ Ð¸ÑÐ¾Ð³Ñ, Ð±ÑÐ» ÑÐ´ÐµÐ»Ð°Ð½ Ð²ÑÐ²Ð¾Ð´ Ð¾ ÑÐ¾Ð¼, ÑÑÐ¾ ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ Ð´Ð°Ð½Ð½ÑÑ ÐºÐ°Ð±ÐµÐ»ÐµÐ¹ Ð½Ðµ Ð¸Ð·Ð¼ÐµÐ½Ð¸Ð»Ð¾ÑÑ Ð¸Ð·-Ð·Ð° Ð²Ð»Ð¸ÑÐ½Ð¸Ñ ÑÑÐ¸Ñ ÑÑÑÐµÐºÑÐ¾Ð², Ð° Ð·Ð½Ð°ÑÐ¸Ñ Ð¿ÑÐ¸ ÑÐ°ÑÑÐµÑÐµ ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð¼Ñ Ð¼Ð¾Ð¶ÐµÐ¼ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°ÑÑ ÑÐ¿ÑÐ¾ÑÐµÐ½Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÑ. Ð­ÑÐ¾ Ð³Ð¾Ð²Ð¾ÑÐ¸Ñ Ð¾ ÑÐ¾Ð¼, ÑÑÐ¾ ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ð½ÑÐµ Ð´Ð»Ñ Ð²ÑÐ±Ð¾ÑÐ° Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»ÐµÐ¹ Ð¸ ÐºÐ°Ð±ÐµÐ»ÐµÐ¹ Ð² ÑÐµÑÐ¸ 0,4 ÐºÐ ÑÐ¾ÐºÐ¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ, Ð´Ð»Ñ ÑÐ°ÑÑÐµÑÐ° ÐºÐ¾ÑÐ¾ÑÑÑ Ð½Ðµ ÑÑÐ¸ÑÑÐ²Ð°ÐµÑÑÑ Ð²Ð»Ð¸ÑÐ½Ð¸Ðµ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ½Ð¾Ð³Ð¾ ÑÑÑÐµÐºÑÐ° Ð¸ ÑÑÑÐµÐºÑÐ° Ð±Ð»Ð¸Ð·Ð¾ÑÑÐ¸, ÑÐ²Ð»ÑÑÑÑÑ ÐºÐ¾ÑÑÐµÐºÑÐ½ÑÐ¼Ð¸.
description: The purpose of this work was to study the dependence of the proximity effect and the surface effect on the 0.4 kV cables of the station's own needs, which are laid parallel to each other and feed the RU-380 V sections. This paper presents calculations of short-circuit currents for the station BTEC-1 "GKO", on the basis of which the choice of new equipment is made to replace the existing one at the station. Namely, a selection of high-voltage switching devices, current-carrying parts, current and voltage measuring transformers and circuit breakers was made. Cables in the 0.4 kV network have also been tested for thermal stability and non-combustibility. The effect of surface effect and proximity effect is calculated for the cables feeding the RU-380V sections. As a result, it was concluded that the resistance of these cables did not change due to the influence of these effects, which means that we can use a simplified method for calculating short-circuit currents. This means that the short-circuit currents calculated for the selection of circuit breakers and cables in the 0.4 kV network, which do not take into account the influence of the surface effect and the proximity effect, are correct.