title: ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ ÑÐµÑ Ð° Ð¿ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÑÐµÐºÑÐ° Ð² ÐÐµÐ½Ð¸Ð½Ð³ÑÐ°Ð´ÑÐºÐ¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÐ¸
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Design of the power supply system for the workshop of an industrial facility in the Leningrad region
Creators: name: Ð¡ÑÐ´Ð¸Ð»Ð¾Ð²ÑÐºÐ¸Ð¹, Ð¡ÐµÑÐ³ÐµÐ¹
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¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ñ
ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÐµ Ð»Ð¸Ð½Ð¸Ð¸
Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ð¸
ÑÐ°Ð·ÑÐµÐ´Ð¸Ð½Ð¸ÑÐµÐ»Ð¸
substation
cable lines
switches
disconnectors

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description: The theme of the final qualification work â Â«Designing the electricity supply system of the industrial facility in the Leningrad regionÂ». According to the task, the mechanical workshop is a building measuring 52 by 36 m, 10 m high with its production and household facilities, which is equipped with various machines, pumps and fans. In this work the calculation of electrical loads was made, according to which the total figure is 71.5 kW. A single-transformer substation TM-160/35 with a nominal capacity of 160 kVA was chosen for the electricity supply of the workshop. The distribution lines were calculated: the total current of the lines is 35.78A. We chose the brand and section of the cable for the power cabinets APPU2g 4x150 mm2. Selected a power cabinet floor performance for the PR8503-1002-3U3 with the introductory machine VA51-39 on the nominal current 400 A and linear automatic switches VA51-31. The choice of cables and the calculation of currents to electric receivers was chosen, according to this they chose the CABLE type AVVG (4Ã150 mm2), in the reserve circuit and input selected switches type BT/TEL-10 with a nominal current 400 A, also picked up a disconnector type RV3-10/400. According to calculations, the WA47-29 type protection device has been selected. The currents of the short circuit of the protection devices and power lines will be calculated. In the economic part of the work, the number of workers for repair and maintenance of electrical equipment, the cost of capital and current repairs, the calculation of electricity costs has been made. Safety measures for installation and operation of electrical equipment, as well as fire-fighting measures were considered.