title: ÐÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÐ°ÑÑÐµÑÐ° ÑÐ¾ÐºÐ¾Ð² Ð´ÑÐ³Ð¾Ð²ÑÑ ÐÐ Ð² ÑÐ¸ÑÑÐµÐ¼Ð°Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ 0.4 ÐºÐ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¹
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: Particularity of short-circuit through an arc current calculation in the substation's auxiliries
Creators: name: ÐÑÑÑÐ°Ð·Ð¸Ð½Ð°, ÐÐµÑÐ¾Ð½Ð¸ÐºÐ°
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¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ñ
Ð²ÑÐ±Ð¾Ñ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ
ÑÐ°ÑÑÐµÑ ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ
Ð³Ð»Ð°Ð²Ð½Ð°Ñ ÑÑ ÐµÐ¼Ð° ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹
ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÐµ Ð½ÑÐ¶Ð´Ñ
Ð¼ÐµÑÐ¾Ð´Ñ ÑÐ°ÑÑÐµÑÐ° Ð´ÑÐ³Ð¾Ð²Ð¾Ð³Ð¾ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ
electric power substation
select of equipment
short-circuit current calculation
key single line diagram
auxiliries
methods of short-circuit through an arc current calculation

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð±ÑÐ»Ð¸ Ð²ÑÐ±ÑÐ°Ð½Ñ Ð°Ð²ÑÐ¾ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ Ð¸ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ ÑÐ¾Ð³Ð»Ð°ÑÐ½Ð¾ Ð·Ð°Ð´Ð°Ð½Ð½ÑÐ¼ Ð½Ð°ÑÐ°Ð»ÑÐ½ÑÐ¼ ÑÑÐ»Ð¾Ð²Ð¸ÑÐ¼. Ð Ð°ÑÑÑÐ¸ÑÐ°Ð½Ñ ÑÐ¾ÐºÐ¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð² ÑÐµÑÑÑ 220/110/10 ÐºÐ, ÑÑÐ¾ Ð¿Ð¾Ð·Ð²Ð¾Ð»Ð¸Ð»Ð¾ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÑÑÐ¸ Ð²ÑÐ±Ð¾Ñ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ¾Ð² Ð¸ ÑÐ¾ÐºÐ¾Ð²ÐµÐ´ÑÑÐ¸Ñ ÑÐ°ÑÑÐµÐ¹. Ð¢Ð°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¸ Ð¾Ð¿Ð¸ÑÐ°Ð½Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÐ°ÑÑÐµÑÐ¾Ð² ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð² ÑÐµÑÑÑ 0.4 ÐºÐ, Ð²Ð°Ð¶Ð½Ð¾ÑÑÑ ÑÑÐµÑÐ° ÑÐ¾ÐºÐ¾Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐ¸Ð²Ð°ÑÑÐµÐ³Ð¾ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð´ÑÐ³Ð¸ Ð¸ Ð¼ÐµÑÐ¾Ð´Ñ ÐµÐ³Ð¾ ÑÑÐµÑÐ°. ÐÑÐ»Ð¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ñ Ð¼ÐµÑÐ¾Ð´, Ð¾Ð¿Ð¸ÑÐ°Ð½Ð½ÑÐ¹ Ð² "Ð ÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ¸Ñ ÑÐºÐ°Ð·Ð°Ð½Ð¸ÑÑ Ð¿Ð¾ ÑÐ°ÑÑÐµÑÑ ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð¸ Ð²ÑÐ±Ð¾ÑÑ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ", Ð¸ Ð¼ÐµÑÐ¾Ð´, Ð¾Ð¿Ð¸ÑÐ°Ð½Ð½ÑÐ¹ Ð² ÐÐÐ¡Ð¢Ðµ 28249-93 "ÐÐ¾ÑÐ¾ÑÐºÐ¸Ðµ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð² ÑÐ»ÐµÐºÑÑÐ¾ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ°Ñ. ÐÐµÑÐ¾Ð´Ñ ÑÐ°ÑÑÐµÑÐ° Ð² ÑÐ»ÐµÐºÑÑÐ¾ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ°Ñ Ð¿ÐµÑÐµÐ¼ÐµÐ½Ð½Ð¾Ð³Ð¾ ÑÐ¾ÐºÐ° Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð´Ð¾ 1 ÐºÐ". ÐÐ¾Ð»ÐµÐµ ÑÐ¾Ð³Ð¾, Ð±ÑÐ»Ð¸ Ð¿ÑÐ¾Ð¸Ð·Ð²ÐµÐ´ÐµÐ½Ñ Ð¿ÑÐ¾Ð²ÐµÑÐºÐ¸ ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹ Ð½Ð° Ð½ÐµÐ²Ð¾Ð·Ð³Ð¾ÑÐ°Ð½Ð¸Ðµ Ð¸ ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÑÑ ÑÑÐ¾Ð¹ÐºÐ¾ÑÑÑ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»ÐµÐ¹ Ð¿Ð¾ Ð¿ÑÐµÐ´ÐµÐ»ÑÐ½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ¿Ð¾ÑÐ¾Ð±Ð½Ð¾ÑÑÐ¸. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð¼ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÑÑÑÑ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÐ°ÑÑÐµÑÑ Ð¼Ð¸Ð½Ð¸Ð¼Ð°Ð»ÑÐ½ÑÑ ÑÐ¾ÐºÐ¾Ð² ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ Ð¸ ÑÑÐµÑÐ° ÑÐ¾ÐºÐ¾Ð¾Ð³ÑÐ°Ð½Ð¸ÑÐ¸Ð²Ð°ÑÑÐµÐ³Ð¾ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ð´ÑÐ³Ð¸ Ð² ÑÐµÑÑÑ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸.
description: This paper presents analysis of methods of short-circuit current through an arc calculation. Ðutotransformers and auxiliary transformers were selected in accordance with the given initial conditions. Short-circuit currents were calculated, which made it possible to select switching devices and live parts. The features of calculating short-circuit currents in 0.4 kV networks, the importance of taking into account the current-limiting action of the arc and methods for its accounting were also described. Method described in the "Guidelines for the calculation of short circuit currents and equipment selection" were compared to method described in national standart 28249-93 "Short-circuit in electrical installation. Calculation methods in AC electrical installations with voltage below 1 kV". Cable lines were checked for non-ignition and thermal resistance, circuit breakers were checked for ultimate breaking capacity. The result of the work are recommendations for calculating short-circuit currents and taking into account the current-limiting action of the arc in the substation's auxiliries.