title: ÐÐ¾Ð´ÐµÑÐ½Ð¸Ð·Ð°ÑÐ¸Ñ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ°ÑÑÐ¸ Ð¢Ð­Ð¦ ÐÐ¸ÑÐ¾Ð²ÑÐºÐ¾Ð³Ð¾ ÑÐ°Ð¹Ð¾Ð½Ð° Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³Ð° Ñ ÑÑÐµÑÐ¾Ð¼ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½ÑÑ Ð¿ÑÐ¾ÐµÐºÑÐ½ÑÑ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸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: Modernization of the electrical part of the CHPP of the Kirovsky district of St. Petersburg, taking into account modern design requirements
Creators: name: Ð£Ð½Ð³Ð°ÑÐ¾Ð², ÐÐ°Ð½Ð¸Ð¸Ð»
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¢ÐµÐ¿Ð»Ð¾Ð²ÑÐµ ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÑÐ°Ð½ÑÐ¸Ð¸
Ð­Ð»ÐµÐºÑÑÐ¾ÑÐ½ÐµÑÐ³ÐµÑÐ¸ÐºÐ°
Ð¢ÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ
Ð½ÐµÐ»Ð¸Ð½ÐµÐ¹Ð½Ð°Ñ Ð½Ð°Ð³ÑÑÐ·ÐºÐ°
Ð½ÐµÑÐ¸Ð½ÑÑÐ¾Ð¸Ð´Ð°Ð»ÑÐ½Ð¾ÑÑÑ
Ð¿Ð¾Ð¿ÑÐ°Ð²Ð¾ÑÐ½ÑÐ¹ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½Ñ
non-linear load
non-sinusidality
correction factor

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description: This work is devoted to the reconstruction of the electrical part of the CHP plant, taking into account modern industry standards, as well as checking the transformer capacity when feeding a non-linear load. Tasks that were solved during the design: 1) Analysis of the current state of equipment at the CHPP and development of recommendations on the scope of reconstruction; 2) reconstruction of the electrical part of the CHPP taking into account modern industry standards; 3) Checking the throughput of a 6 / 0.4 kV transformer when feeding a non-linear load. During the reconstruction, power transformers and generators with a service life of 64 and 48 years, respectively, were replaced, which exceeded the standard. Three-phase short-circuit currents were also calculated, according to which the choice of switches, disconnectors and current-carrying parts was subsequently made. The paper considers the structure of active power losses in transformers, as well as the influence of higher harmonic currents on the amount of losses. Taking into account the specified spectral composition of the load current, the correction factor to the rated current of the 6 / 0.4 kV transformer was calculated and its throughput was checked.