title: ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ»ÐµÐºÑÑÐ¾ÑÐ½Ð°Ð±Ð¶ÐµÐ½Ð¸Ñ Ð¼Ð°ÑÐ¸Ð½Ð¾ÑÑÑÐ¾Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
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: Design of the power supply system of a machine-building enterprise
Creators: name: Ð¥Ð°Ð±Ð°ÑÐ¾Ð², ÐÐ»Ð°Ð´Ð¸Ð¼Ð¸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ÑÐ¾Ð¼ÑÑÐ»ÐµÐ½Ð½ÑÐµ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ñ
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description: The purpose of this work is to develop a power supply system for a machine-building enterprise using up-to-date calculation methods in accordance with all the requirements for power supply systems and taking into account the specifics of this particular enterprise. The calculations took into account the conditions of the production environment-when choosing the types of lamps, brands of cables and wires. A lighting calculation was made. Calculations of electrical loads for industrial, office and auxiliary consumers and calculation of loads for the entire enterprise as a whole were made. The lighting calculation was performed using the utilization factor method. The calculation of production electrical loads was carried out in accordance with the methodology given in the "Instructions for calculating electrical loads" RTM 36.18.32.4-92. Office, auxiliary and light loads were calculated using the demand coefficient method. 4 Based on the results of calculating electrical loads, a transformer substation was selected. In order to reduce losses, reactive power compensation devices were calculated. The chosen cross-section of cables and buses and made them check for loss of voltage. Short-circuit currents are calculated. The calculation of short-circuit currents was carried out in accordance with the method for calculating short-circuits in AC electrical installations with the voltage specified in GOST 28249-93. High-voltage input equipment was selected, protective devices were selected and tested to ensure the protection of electrical equipment in case of dangerous overloads and short circuits, lightning protection and grounding calculations were made. The approaches and methods used in this work have shown their relevance and effectiveness in solving the tasks set. Based on the results of the work, technically sound proposals for the organization of the company's power supply system are presented.