title: ÐÐ½Ð°Ð»Ð¸Ð· Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² ÑÐ¸ÑÑÐµÐ¼Ð°Ñ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ ÑÐ»ÐµÐºÑÑÐ¾Ñ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: Analysis of transient processes in auxiliary systems of power plants
Creators: name: ÐÐµÑÑÐ¸Ð»ÑÐµÐ², ÐÑÑÐµÐ½Ð¸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: 2024
Subjects: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÑÐ°Ð½ÑÐ¸Ð¸
Ð¢Ð¾ÐºÐ¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ
Ð­Ð»ÐµÐºÑÑÐ¾Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ð¸
ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÐµ Ð½ÑÐ¶Ð´Ñ
Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½ÑÐ¹ Ð¿ÑÐ¾ÑÐµÑÑ
ÑÐ¾ÐºÐ¾ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ
Ð¿ÑÐ¾ÑÐ¸Ð²Ð¾ÑÐ°Ð·Ð°
common auxiliaries
transient state
current distribution
counterphase

description: Ð¦ÐµÐ»ÑÑ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐ»Ð°ÑÑ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÑÐ¾ÑÐ½ÐµÐ½Ð½Ð¾Ð¹ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ ÑÐ°ÑÑÑÑÐ° ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ Ð½Ð°Ð³ÑÐµÐ²Ð° ÐºÐ°Ð±ÐµÐ»ÐµÐ¹ ÑÐ»ÐµÐºÑÑÐ¾Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»ÐµÐ¹ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ Ñ ÑÑÑÑÐ¾Ð¼ ÑÐ¾ÐºÐ¾ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð² Ð¿Ð°ÑÐ°Ð»Ð»ÐµÐ»ÑÐ½ÑÑ Ð²ÐµÑÐ²ÑÑ Ð¸ Ð¾ÑÐµÐ½ÐºÐ° Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÐ¸ Ð¿Ð¾Ð´Ð°ÑÐ¸ ÑÐµÐ·ÐµÑÐ²Ð½Ð¾Ð³Ð¾ Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ Ð½Ð° ÑÐµÐºÑÐ¸Ñ Ð¡Ð 6,3 (10,5) ÐºÐ Ð¿ÑÐ¸ Ð¼Ð°Ð»ÑÑ Ð¿ÐµÑÐµÑÑÐ²Ð°Ñ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ð½Ð° Ð½Ðµ ÑÑÐ¿ÐµÐ²ÑÐµÐµ Ð·Ð°ÑÑÑÐ½ÑÑÑ Ð¾ÑÑÐ°ÑÐ¾ÑÐ½Ð¾ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ðµ. Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ Ð²ÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÑ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð¾ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¾Ð¿Ð°ÑÐ½Ð¾Ð¹ ÑÐ¾ÑÐºÐ¸ ÐÐ Ð½Ð° Ð¿Ð¸ÑÐ°ÑÑÐµÐ¼ ÐºÐ°Ð±ÐµÐ»Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð´Ð²Ð¸Ð³Ð°ÑÐµÐ»Ñ, Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð° Ð¿Ð¸ÑÐ°ÑÑÐ¸Ñ ÐºÐ°Ð±ÐµÐ»ÐµÐ¹ Ð¿ÑÐ¸ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ñ. ÐÐ¾Ð»ÑÑÐµÐ½Ð¾ Ð²ÑÑÐ°Ð¶ÐµÐ½Ð¸Ðµ, Ð¿Ð¾ÐºÐ°Ð·ÑÐ²Ð°ÑÑÐµÐµ Ð½ÐµÐ²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾ÑÑÑ Ð¿ÑÐµÐ²ÑÑÐµÐ½Ð¸Ñ ÑÐ¾ÐºÐ° ÑÐ½Ð¸Ð·Ñ Ð¿Ð¾ Ð¾ÑÐ½Ð¾ÑÐµÐ½Ð¸Ñ Ðº ÑÐ¾ÐºÑ ÑÐ²ÐµÑÑÑ. ÐÑÐ¿Ð¾Ð»Ð½ÐµÐ½Ñ ÑÐ°ÑÑÐµÑ Ð¸ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑ Ð½Ð°Ð³ÑÐµÐ²Ð° Ð¶Ð¸Ð» ÐºÐ°Ð±ÐµÐ»ÐµÐ¹ Ð¿ÑÐ¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¸Ñ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸ÑÑ Ð½Ð° Ð¿Ð¸ÑÐ°ÑÑÐµÐ¼ ÐºÐ°Ð±ÐµÐ»Ðµ Ð¸ Ð½Ð° ÑÐµÐºÑÐ¸Ð¸ Ð¡Ð 6,3 (10,5) ÐºÐ Ð¿ÑÐ¸ Ð¿ÑÐ¾Ð²ÐµÑÐºÐµ ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹ Ð½Ð° Ð½ÐµÐ²Ð¾Ð·Ð³Ð¾ÑÐ°ÐµÐ¼Ð¾ÑÑÑ. ÐÑÑÐ²Ð»ÐµÐ½Ð¾ Ð½Ð°Ð¸Ð±Ð¾Ð»ÐµÐµ Ð¾Ð¿Ð°ÑÐ½Ð¾Ðµ Ð²ÑÐµÐ¼Ñ Ð¿Ð¾Ð²ÑÐ¾ÑÐ½Ð¾Ð¹ Ð¿Ð¾Ð´Ð°ÑÐ¸ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð½Ð° ÑÐµÐºÑÐ¸Ñ Ð¡Ð 6,3 (10,5) ÐºÐ Ð¾Ñ ÑÐµÐ·ÐµÑÐ²Ð½Ð¾Ð³Ð¾ Ð¸ÑÑÐ¾ÑÐ½Ð¸ÐºÐ° Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ Ð½Ð° Ð½Ðµ ÑÑÐ¿ÐµÐ²ÑÐµÐµ Ð·Ð°ÑÑÑÐ½ÑÑÑ Ð¾ÑÑÐ°ÑÐ¾ÑÐ½Ð¾Ðµ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ðµ. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð² ÑÐ°ÑÑÐ¸ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¿Ð¾Ð³ÑÐµÑÐ½Ð¾ÑÑÐµÐ¹ ÑÐ¾ÐºÐ¾Ð² ÐÐ Ð¼Ð¾Ð³ÑÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ Ð½Ðµ ÑÐ¾Ð»ÑÐºÐ¾ Ð´Ð»Ñ ÑÑÐ¾ÑÐ½ÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð²ÐµÑÐºÐ¸ Ð¿Ð¾ ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÐ¾Ð¹ÐºÐ¾ÑÑÐ¸ Ð¸ Ð½ÐµÐ²Ð¾Ð·Ð³Ð¾ÑÐ°ÐµÐ¼Ð¾ÑÑÐ¸ ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹, Ð½Ð¾ Ð¸ Ð´Ð»Ñ Ð¿ÑÐ¾Ð²ÐµÑÐºÐ¸ ÑÐ»ÐµÐºÑÑÐ¾Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ ÑÐ»ÐµÐºÑÑÐ¾Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÑÐ¾Ð¹ÐºÐ¾ÑÑÐ¸, Ð° ÑÐ°ÐºÐ¶Ðµ Ð´Ð»Ñ Ð²ÑÐ±Ð¾ÑÐ° Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÑÐ°Ð±Ð°ÑÑÐ²Ð°Ð½Ð¸Ñ ÑÑÑÑÐ¾Ð¹ÑÑÐ² ÑÐµÐ»ÐµÐ¹Ð½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ.
description: The purpose of the work was to develop a refined methodology for calculating the heating temperature of electric motor cables for auxiliary needs, taking into account current distribution in parallel branches and to assess the danger of supplying backup power to the auxiliary section of 6.3 (10.5) kV during small interruptions in the power supply when its voltage has not yet been sufficiently damped. In the process of carrying out the work, a study was carried out to determine the most dangerous short-circuit point on the power supply cable of the electric motor, and to determine the influence of the number of power connection cables. An expression has been obtained showing the impossibility of the current from below exceeding the current from above. Calculation and comparison of heating temperatures of cable cores during short circuits on the supply cable and in the auxiliary sections of 6.3 (10.5) kV were carried out when checking cable lines for non-flammability. The most dangerous time for re-applying voltage to the auxiliary section of 6.3 (10.5) kV from a backup power source to the residual voltage that has not yet died down has been identified. The results of the study in terms of assessing the errors of short-circuit currents can be used not only to clarify the test for thermal resistance and non-flammability of cable lines, but also to test electrical equipment for electrodynamic resistance, as well as to select the operation parameters of relay protection devices.