title: ÐÐµÑÐ¾Ð´Ð¸ÐºÐ° Ð¾ÑÐµÐ½ÐºÐ¸ ÑÐ°Ð±Ð¾ÑÑ ÐÐÐ Ð² Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑ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: Methodology for evaluating the operation of differential protection in transient process
Creators: name: ÐÐ°Ð½Ð¸ÑÐºÐ¸Ð½, ÐÐ²Ð°Ð½
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: Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð»Ð¸Ð½Ð¸Ð¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð²Ð¾Ð·Ð´ÑÑÐ½ÑÐµ
ÐÐ°Ð½Ð°Ð»Ñ ÑÐ²ÑÐ·Ð¸
Ð¢ÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ ÑÐ¾ÐºÐ°
Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð°Ñ Ð·Ð°ÑÐ¸ÑÐ° Ð»Ð¸Ð½Ð¸Ð¸
ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð°Ñ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ°
ÐµÐ¼ÐºÐ¾ÑÑÐ½Ð¾Ð¹ ÑÐ¾Ðº
Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½Ð¾Ðµ ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ
Ð¼Ð¾Ð´ÐµÐ»Ñ Ð»Ð¸Ð½Ð¸Ð¸
current differential protection
braking characteristic
capacitive current
fault resistance
mathematical line model

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð¼ÐµÑÐ¾Ð´Ð¸Ðº Ð¾ÑÐµÐ½ÐºÐ¸ ÑÐ°Ð±Ð¾ÑÑ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ Ð»Ð¸Ð½Ð¸Ð¸ Ð² Ð¿ÐµÑÐµÑÐ¾Ð´Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ°Ñ. ÐÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ðµ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ð¸Ñ Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ Ð¸ Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ°ÑÑÐ¸ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ Ð»Ð¸Ð½Ð¸Ð¸, Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ¾Ð² Ð·Ð°ÑÐ¸ÑÑ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´Ð¸ÑÐµÐ»ÐµÐ¹ Ð² Ð´Ð°Ð½Ð½Ð¾Ð¹ Ð¾ÑÑÐ°ÑÐ»Ð¸. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ Ð¸ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ñ Ð¿ÑÐ¸ÑÐ¸Ð½Ñ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¸Ð»Ð¸ Ð²Ð¾Ð·Ð½Ð¸ÐºÐ½Ð¾Ð²ÐµÐ½Ð¸Ñ Ð»Ð¾Ð¶Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ Ð»Ð¸Ð½Ð¸Ð¸. ÐÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð´Ð»Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð´Ð°Ð½Ð½ÑÑ Ð¿ÑÐ¸ÑÐ¸Ð½ Ð² Ð¾ÑÐ´ÐµÐ»ÑÐ½Ð¾ÑÑÐ¸ Ð¸Ð»Ð¸ Ð¸Ñ ÐºÐ¾Ð¼Ð±Ð¸Ð½Ð°ÑÐ¸Ð¸. ÐÐ½Ð°Ð»Ð¸Ð· Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»ÑÑ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¿Ð¾Ð´Ð³Ð¾ÑÐ¾Ð²Ð»ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½Ð¾Ð³Ð¾ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ°, ÑÐ¾Ð·Ð´Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð³ÑÐ°ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² ÑÑÐµÐ´Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ LabView ÑÐ¸ÑÐ¼Ñ National Instruments. Ð­ÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ Ð´Ð°Ð½Ð½ÑÐµ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð°Ð²Ð°ÑÐ¸Ð¹Ð½ÑÑ Ð¸ ÑÑÑÐ¶ÐµÐ»ÐµÐ½Ð½ÑÑ ÑÐµÐ¶Ð¸Ð¼Ð¾Ð² ÑÐ°Ð±Ð¾ÑÑ Ð·Ð°ÑÐ¸ÑÐ°ÐµÐ¼Ð¾Ð³Ð¾ Ð¾Ð±ÑÐµÐºÑÐ° Ð¸Ð·Ð²Ð»ÐµÐºÐ°Ð»Ð¸ÑÑ Ð¸Ð· ÑÐ¾Ð·Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ½ÐµÑÐ³Ð¾ÑÐ¸ÑÑÐµÐ¼Ñ Ð² ÑÑÐµÐ´Ðµ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ MatLab Simulink. ÐÐ° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¾ÑÑÑÐµÑÑÐ²Ð»ÐµÐ½Ð½ÑÑ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ Ð¿Ð¾ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½Ð¾Ð¹ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐµ Ð´Ð°ÐµÑÑÑ Ð¾ÑÐµÐ½ÐºÐ° Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² ÑÐ°Ð±Ð¾ÑÑ Ð´Ð¸ÑÑÐµÑÐµÐ½ÑÐ¸Ð°Ð»ÑÐ½Ð¾Ð¹ Ð·Ð°ÑÐ¸ÑÑ Ð»Ð¸Ð½Ð¸Ð¸ Ð² Ð¿ÐµÑÐµÑÐ¾Ð´Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ°Ñ.
description: This work is devoted to the creation of methods for evaluating the operation of differential line protection in transients. The description of the construction of the measuring and logical part of the differential protection of the line is given, the analysis of the implementation of existing protection kits from various manufacturers in this industry is carried out. The reasons for the decrease in the efficiency or the occurrence of false operation of the differential protection of the line are considered and investigated. Methods for analyzing these causes individually or in combination are proposed. The analysis was carried out using a prepared software package created on the basis of graphical programming in the LabVIEW modeling environment of National Instruments. Experimental data of various emergency and heavy operation modes of the protected object were extracted from the created power system in the MatLab Simulink simulation environment. Based on the studies carried out according to the proposed method, an assessment of the obtained results of the differential protection of the line in transients is given.