title: ÐÑÐ¿ÑÑÐ°Ð½Ð¸Ñ Ð¸ Ð´Ð¸Ð°Ð³Ð½Ð¾ÑÑÐ¸ÐºÐ° Ð²ÑÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑÑÐ½ÑÑ ÐºÐ°Ð±ÐµÐ»ÑÐ½ÑÑ Ð»Ð¸Ð½Ð¸Ð¹
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: Testing and diagnostics of high-voltage cable lines
Creators: name: Ð§ÐµÑÐ½Ð¾ÐºÐ¾Ð², ÐÐ²Ð³ÐµÐ½Ð¸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: 2022
Subjects: ÐÐ°Ð±ÐµÐ»ÑÐ½ÑÐµ Ð»Ð¸Ð½Ð¸Ð¸ Ð²ÑÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑÑÐ½ÑÐµ
Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ ÑÐ½Ñ
ÑÐ°ÑÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÐÐµÐ¹Ð±ÑÐ»Ð»Ð°
ÑÑÐ¸ÑÑÐ¹ Ð¿Ð¾Ð»Ð¸ÑÑÐ¸Ð»ÐµÐ½
ÑÐ°Ð½Ð³ÐµÐ½Ñ ÑÐ³Ð»Ð° Ð´Ð¸ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð¾ÑÐµÑÑ
ÑÐ°ÑÑÐ¸ÑÐ½ÑÐµ ÑÐ°Ð·ÑÑÐ´Ñ
ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¿ÑÐ¾ÑÐ½Ð¾ÑÑÑ
VLF testing
Weilbull distribution
cross linked polyethylene
dielectric loss angle tangent
partial discharge
electrical strength

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description: Topic of the graduation thesis: Â«Testing and diagnostics of high-voltage cable linesÂ». This work is concerned with problems of testing and diagnostics of middle-and high-voltage (MV and HV) cable lines (CL). The comparative analysis of testing and measurement of partial discharge level with overvoltage of very low frequency (VLF) and Oscillating Wave Test System (OWTS) is conducted. Tasks of the work were to consider the following problems: - possibility of using VLF testing not only in MV CL but also in HV CL as the main diagnostic tool; - estimation of the remaining life of the cable isolation through control of the peak displacement towards low frequencies in the dielectric loss tangent graph; - modern problems of testing of polymeric cable sheaths; - study of the electrical strength of cross-linked polyethylene (XLPE) insulated power cables with extreme value statistic methods. The experimental research had been conducted on Â«Rosseti LenenergoÂ» facilities where the following results were gotten: - partial discharge level phase diagrams; - oscillogrammes of partial discharge itself for MV CL and 110 kV class. Cable sheaths testing was conducted on CL owned by Â«Rosseti LenenergoÂ» as well. Electrical strength testing of 10 kV cables insulated with peroxide crosslinked polyethylene was based on the Â«CevCableÂ» factory. Parameters of Weilbull distribution were calculated.