title: Ð ÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ ÑÑÑÐµÑÑÐ²ÑÑÑÐµÐ¹ ÑÐµÑÐ¸ 10 ÐºÐ Ñ ÑÐµÐ»ÑÑ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÑÐµÐ±Ð¸ÑÐµÐ»ÐµÐ¹
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: Reconstruction of the existing 10 kV network in order to increase the reliability of power supply to consumers
Creators: name: ÐÐ¾ÑÐ°Ð»Ð¾Ð²Ð°, Ð®Ð»Ð¸Ñ
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¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ
SAIFI
SAIDI
ÑÐµÐºÐ»Ð¾ÑÐ·ÐµÑ
ÑÐ¿ÑÐ°Ð²Ð»ÑÐµÐ¼ÑÐ¹ ÑÐ°Ð·ÑÐµÐ´Ð¸Ð½Ð¸ÑÐµÐ»Ñ Ñ Ð¸Ð½Ð´Ð¸ÐºÐ°ÑÐ¾ÑÐ°Ð¼Ð¸ ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ
electric power distribution reliability indices
recloser
controlled disconnector with short-circuit indicators

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«Ð ÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ ÑÑÑÐµÑÑÐ²ÑÑÑÐµÐ¹ ÑÐµÑÐ¸ 10 ÐºÐ Ñ ÑÐµÐ»ÑÑ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÑÐµÐ±Ð¸ÑÐµÐ»ÐµÐ¹Â».
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1. ÐÐ½Ð°Ð»Ð¸Ð· ÑÐ°ÑÑÐ¾ÑÑ Ð¸ Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¿ÑÐµÑÑÐ²Ð°Ð½Ð¸Ñ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÑÐµÐ±Ð¸ÑÐµÐ»ÐµÐ¹.
2. Ð Ð°ÑÑÐµÑ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ð´Ð»Ñ Ð½ÐµÑÐºÐ¾Ð»ÑÐºÐ¸Ñ Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ¾Ð² ÑÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ ÑÐµÑÐ¸ Ð¿ÑÑÐµÐ¼ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÑ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÐ¾Ð².
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description: Theme of final qualification work: âReconstruction of the existing 10 kV network in order to increase consumersâ power supply reliabilityâ.
This work is devoted to the study of methods for improving the reliability of power supply to consumers by installing modern switching devices (reclosers and controlled disconnectors with short circuit indicators). The objectives of this study are:
1. Analysis of the frequency and duration of interruption of the consumers power supply.
2. Calculation of electrical power distribution reliability indices for several options of the reconstruction of the network by installing modern switching devices.
3. The study of possible network power modes after the reconstruction.
4. Calculation of the settings of relay protection and automation, taking into account the equipment installed during the reconstruction.
The work was carried out on the basis of the Sluda feeder of the substation Ustyuzhna and the Vasnkoye feeder of the substation Zhelyabovo of the Ustyuzhna 
energy supply area. Interruptions in power supply to consumers in recent years, their frequency and duration were analyzed. Calculations were performed demonstrating a significant improvement in the reliability indices of power supply SAIFI and SAIDI for several options for network reconstruction, taking into account the installation of modern switching devices.
For the reconstruction option, which leads to the greatest decrease in SAIFI and SAIDI indicators, the parameters of the normal power supply modes of the considered feeders and possible post-emergency modes were calculated, as well as the currents of two-phase and three-phase short circuits in the maximum and minimum modes using the Tavrida Electric Telarm software package. According to the results of the currents calculating of normal and post-accident conditions, as well as short circuit currents, the installed equipment was checked and the settings of relay protection and automation of reclosers were calculated.