title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÑÑÐ¾ÑÐµÐ·Ð¾Ð½Ð°Ð½ÑÐ½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² ÑÐµÑÑÑ 220 ÐºÐ Ñ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ°Ð¼Ð¸ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐ¸Ð¿Ð¾Ð²
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: Investigation of ferroresonance processes in 220 kV networks with voltage transformers of various types
Creators: name: Ð¤ÐµÐ¹Ð³ÐµÐ½Ð·Ð¾Ð½, ÐÑÐ¸Ð¼
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ÐµÑÑÐ¾ÑÐµÐ·Ð¾Ð½Ð°Ð½ÑÐ½ÑÐµ ÑÐ²Ð»ÐµÐ½Ð¸Ñ
ÑÐµÑÑÐ¾ÑÐµÐ·Ð¾Ð½Ð°Ð½Ñ
ÑÐµÑÑÐ¾ÑÐµÐ·Ð¾Ð½Ð°Ð½ÑÐ½ÑÐµ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
ÑÐ²ÐµÑÑ ÑÐ¾ÐºÐ¸
ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
Ð·Ð°ÑÐ¸ÑÐ° Ð¾Ñ Ð¿ÐµÑÐµÐ½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ
ferroresonance phenomena
ferroresonance
ferroresonance overvoltage
overcurrents
voltage transformer
overvoltage protection

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description: Abstract 
89 pages,100 figures,63 tables.
Keywords: Ferroresonance phenomena, ferroresonance, ferroresonance overvoltage, overcurrents, voltage transformer, overvoltage protection. 
The subject of the graduate qualification work is Â«Investigation of ferroresonance processes in 220 kV networks with voltage transformers of various typesÂ»
This work is devoted to the study of ferroresonance processes in a 220 kV network with voltage transformers such as NKF-220 and ZNGA-220. Within the main part of the work, regions of stable ferroresonance were established with a wide range of changes in the network parameters, which can lead to a jump in the current in the high voltage winding and subsequently to thermal destruction of the transformer.
Therefore, the basic methods for combating ferroresonance phenomena were considered. These methods are:
1. changing the sequence of operations of switching devices.
2. Change of elements of ferroresonant circuits.
3. Replacing voltage dividers.
 One of the options for changing the elements of ferroresonant circuits is a series connection with an active resistance voltage transformer. In the fifth chapter, to prevent stable ferroresonance, specific values of the active resistance were selected for some network parameters.