title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ¸Ñ ÑÐºÐ°Ð·Ð°Ð½Ð¸Ð¹ Ð¿Ð¾ ÑÐµÐ»ÐµÐ¹Ð½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÐµ Ð¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÐºÐµ ÑÐµÑÐµÐ¹ 6-35 ÐºÐ Ð¿ÑÐ¸ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸ÑÑ Ð½Ð° Ð·ÐµÐ¼Ð»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: Development of guiding lines for relay protection and automatics of grids 6-35 kV for earth faults
Creators: name: ÐÐ°ÑÐ¼Ð¾Ð², ÐÐ»ÐµÐºÑÐ°Ð½Ð´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: ÑÐµÐ»ÐµÐ¹Ð½Ð°Ñ Ð·Ð°ÑÐ¸ÑÐ° Ð¸ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÐºÐ° ÑÐµÑÐµÐ¹ 6-35 ÐºÐ
Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ðµ Ð½Ð° Ð·ÐµÐ¼Ð»Ñ
Ð¿ÐµÑÐµÐ¼ÐµÐ¶Ð°ÑÑÐ°ÑÑÑ Ð´ÑÐ³Ð°
Ð¼Ð¾Ð´ÐµÐ»Ñ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ñ
ÑÐ¿ÐµÐºÑÑ ÑÐ¸Ð³Ð½Ð°Ð»Ð°
simulink
relay protection and automatics of grids 6-35 kV
earth fault
alternating arc
short-circuit fault model
spector of a signal

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description: The thesis is entitled as Â«Development of guiding lines for relay protection and automatics of grids 6-35 kVÂ». This work is dedicated to research into alternating arc short circuits taking place at 6-35 kV grids, and development of recommendations for selection of parameters and settings of relay protection equipment. During the research following problems were solved: 1. Systems of neutral grounding in grids 6-35 kV were studied. 2. Software for spectral analysis was created 3. Mathematical models of alternating short circuits for different grids were built. 4. Real and generated oscillograms were analyzed. 5. Developed guide lines for development of protection algorithms During the process of work check of selection of a primary equipment for mini-TPP was conducted. Model of power grid containing alternating arc short-circuit was created. As a result of the research some features of alternating faults were found. Research shown that alternating faults could be naturally indicated by current and voltage of zero-sequence. Also during the research possibility of usage of high-harmonics signals for indication of alternating arc faults was confirmed.