title: ÐÐ¾Ð¼Ð¿Ð»ÐµÐºÑ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¸ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸ ÑÐ¸Ð»Ð¾Ð²ÑÑ ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹ Ñ Ð¸Ð·Ð¾Ð»ÑÑÐ¸ÐµÐ¹ Ð¸Ð· ÑÑÐ¸ÑÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸ÑÑÐ¸Ð»ÐµÐ½Ð°
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: A set of measures to improve the efficiency and reliability of power cable lines with XLPE insulation
Creators: name: ÐÑÐ»Ð°ÑÐºÐ¸Ð½, ÐÐ¼Ð¸ÑÑ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: 2020
Subjects: ÑÐ»ÐµÐºÑÑÐ¾Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð³Ð¾Ðµ ÑÐºÑÐ°Ð½Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¼Ð°Ð³Ð½Ð¸ÑÐ½ÑÐ¹ ÑÐºÑÐ°Ð½
Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÑ ÐºÐ°Ð±ÐµÐ»ÑÐ½Ð¾Ð¹ Ð»Ð¸Ð½Ð¸Ð¸
ÐºÐ°Ð±ÐµÐ»Ñ
Ð¾ÑÑÐ°ÑÐ¾ÑÐ½ÑÐ¹ ÑÐµÑÑÑÑ ÐºÐ°Ð±ÐµÐ»Ñ
Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ð¹ ÑÐ²ÐµÑÑ Ð½Ð¸Ð·ÐºÐ¸Ð¼ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸ÐµÐ¼
xlpe-Ð¸Ð·Ð¾Ð»ÑÑÐ¸Ñ
electromagnetic screening
magnetic screen
cable line reliability
cable
residual cable resource
ultra-voltage test
xlpe-insulation

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÐ¾Ð¼Ð¿Ð»ÐµÐºÑ Ð¼ÐµÑÐ¾Ð¿ÑÐ¸ÑÑÐ¸Ð¹ Ð¿Ð¾ Ð¿Ð¾Ð²ÑÑÐµÐ½Ð¸Ñ ÑÑÑÐµÐºÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¸ Ð½Ð°Ð´ÐµÐ¶Ð½Ð¾ÑÑÐ¸ ÑÐ¸Ð»Ð¾Ð²ÑÑ ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹ Ñ Ð¸Ð·Ð¾Ð»ÑÑÐ¸ÐµÐ¹ Ð¸Ð· ÑÑÐ¸ÑÐ¾Ð³Ð¾ Ð¿Ð¾Ð»Ð¸ÑÑÐ¸Ð»ÐµÐ½Ð°Â».
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description: Theme of final qualification work: "A set of measures to improve the effi-ciency and reliability of power cable lines with XLPE insulation."
This work is aimed at studying and proposing new measures to increase the efficiency and reliability of power cable lines. The tasks that were set during the study:
1) The study of electromagnetic shielding in local areas of the cable system.
2) Modeling and calculation of a cable system with a sliding screen of a spe-cial shape.
3) Study of the methodology for testing cable insulation with ultra-low fre-quency voltage (VLF tests).
4) Selection of parameters sensitive to aging of the insulation to assess the remaining cable life.
The work was carried out on the basis of Sevkabel Scientific Research Insti-tute LLC, where data on sliding screens were obtained, and the model presented in this work was developed and calculated there. For the calculation, the COMSOL Multyphysics program was used. The results show the effect of an external magnetic screen on cable heating, as well as the redistribution of the field around it.
Chapter 2 examined parameters that are sensitive to aging of cable insulation, as well as methods for measuring them. These parameters were chosen as the dielec-tric loss tangent and the level of partial discharges. The method of VLF tests was also studied, as the method of non-destructive isolation during diagnostics. As a result of the studies, we came to the conclusion that these methods of testing the state of cable insulation are required in a wider dissemination of their principles.