title: ÐÐ°ÑÐµÐ¼Ð°ÑÐ¸ÑÐµÑÐºÐ¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ»ÐµÐºÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÑ Ð¸ ÑÐµÐ¿Ð»Ð¾Ð²ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¼ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐµ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ 35 ÐºÐ
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: Mathematical modeling of electromagnetic and thermal processes in 35 kV measuring voltage transformer
Creators: name: ÐÐ°Ð¼Ð¾Ð½ÑÐ¾Ð², ÐÑÐ¸Ð³Ð¾ÑÐ¸Ð¹
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: 2024
Subjects: ÐÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¢ÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½ÑÐµ
ÑÐµÑÑÐ¾ÑÐµÐ·Ð¾Ð½Ð°Ð½Ñ
Ð¸Ð·Ð¾Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð°Ñ Ð½ÐµÐ¹ÑÑÐ°Ð»Ñ
Ð¿Ð¾ÑÐ¾Ðº ÑÐ°ÑÑÐµÑÐ½Ð¸Ñ
Ð¿ÑÐµÐ´Ð¾Ñ ÑÐ°Ð½Ð¸ÑÐµÐ»Ñ
ferroresonance
leakage flux
insulated neutral
fuse

description: Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ ÐºÐ°ÑÐµÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ° Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ (Ð¢Ð), Ð°Ð½Ð°Ð»Ð¸Ð·Ñ Ð¿ÐµÑÐµÑÐ¾Ð´Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¿ÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐµÐ¶Ð¸Ð¼Ð°Ñ ÑÐ°Ð±Ð¾ÑÑ ÑÐµÑÐ¸ Ñ Ð¸Ð·Ð¾Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð½ÐµÐ¹ÑÑÐ°Ð»ÑÑ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ Ð¿ÑÐµÐ´Ð¾ÑÐ²ÑÐ°ÑÐµÐ½Ð¸Ñ Ð²ÑÑÐ¾Ð´Ð° Ð¸Ð· ÑÑÑÐ¾Ñ Ð¿ÑÐµÐ´Ð¾ÑÑÐ°Ð½Ð¸ÑÐµÐ»ÐµÐ¹ Ð¸ Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½ÑÑ Ð¢Ð. ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ: 1. Ð¡Ð¾Ð·Ð´Ð°Ð½Ð¸Ðµ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð¢Ð 35 ÐºÐ; 2. ÐÐµÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¢Ð; 3. Ð Ð°ÑÑÑÑ Ð¿ÐµÑÐµÑÐ¾Ð´Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² ÑÐµÑÐ¸ Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐ¼Ð¸ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ°Ð¼Ð¸, Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÑÑÐ»Ð¾Ð²Ð¸Ð¹ ÑÑÐ°Ð±Ð°ÑÑÐ²Ð°Ð½Ð¸Ñ Ð¿ÑÐµÐ´Ð¾ÑÑÐ°Ð½Ð¸ÑÐµÐ»ÐµÐ¹ Ð¸ Ð¿ÐµÑÐµÐ³ÑÐµÐ²Ð° Ð¢Ð; 4. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ Ð¿ÑÐµÐ´Ð¾ÑÐ²ÑÐ°ÑÐµÐ½Ð¸Ñ Ð²ÑÑÐ¾Ð´Ð° Ð¸Ð· ÑÑÑÐ¾Ñ Ð¿ÑÐµÐ´Ð¾ÑÑÐ°Ð½Ð¸ÑÐµÐ»ÐµÐ¹ Ð¸ Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½ÑÑ Ð¢Ð. Ð ÑÐ¾Ð´Ðµ Ð¿ÑÐ¾Ð´ÐµÐ»Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ» Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½ Ð¼ÐµÑÐ¾Ð´ ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ ÐºÐ°ÑÐµÑÑÐ²ÐµÐ½Ð½ÑÑ ÐºÐ¾Ð¼Ð¿ÑÑÑÐµÑÐ½ÑÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ð¢Ð, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ ÑÐ°ÑÑÐµÑÑ ÑÐµÑÑÐ¾ÑÐµÐ·Ð¾Ð½Ð°Ð½ÑÐ½ÑÑ Ð¿ÐµÑÐµÑÐ¾Ð´Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð² ÑÐµÑÐ¸ Ñ Ð¸Ð·Ð¾Ð»Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð¹ Ð½ÐµÐ¹ÑÑÐ°Ð»ÑÑ. ÐÐ¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ ÑÐ°ÑÑÐµÑÐ¾Ð² Ð¿Ð¾Ð»ÑÑÐ¸Ð»Ð¾ÑÑ Ð²ÑÑÐ²Ð¸ÑÑ Ð¾Ð¿Ð°ÑÐ½ÑÐµ Ð´Ð»Ñ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐµÐ¶Ð¸Ð¼Ñ. ÐÐ»Ñ Ð·Ð°ÑÐ¸ÑÑ Ð¢Ð Ð¾Ñ ÑÐµÑÑÐ¾ÑÐµÐ·Ð¾Ð½Ð°Ð½ÑÐ° Ð±ÑÐ» Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð¼ÐµÑ.
description: The work is dedicated to the development of a qualitative computer model of the measuring voltage transformer (VT), the analysis of transient processes in various modes of operation of the neutral-insulated power grid and the development of measures to prevent the failure of fuses and measuring VTs. Objectives of the study: 1. Development of a computer model of a 35 kV measuring VT; 2. Verification of the TN computer model; 3. Calculation of transients in the power grid with different parameters, determination of fuse tripping conditions and overheating of VTs; 4. Development of measures to prevent failure of fuses and measuring VTs. As a result of the work, a method of making qualitative computer models of VTs was proposed, and calculations of ferroresonance transients in a neutral-insulated power grid were carried out. According to the results of calculations, it was possible to identify dangerous modes for the equipment. A complex of measures was proposed for protection of VTs from ferroresonance, and the effectiveness of various methods was compared.