Studies Concerning the Fast Ageing by Thermal Cycling of Power Cables

被引：0

作者：

Lingvay, Iosif ^{[1
]}

Stancu, Cristina ^{[1
]}

Budrugeac, Petru ^{[1
]}

Cucos, Andrei ^{[1
]}

Lingvay, Carmen ^{[1
]}

机构：

[1] Natl Inst R&D Elect Engn, Bucharest, Romania

来源：

2011 7TH INTERNATIONAL SYMPOSIUM ON ADVANCED TOPICS IN ELECTRICAL ENGINEERING (ATEE) | 2011年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In the present paper the results concerning the structural modifications and dielectric properties of polyethylene insulations taken from a medium voltage cable (20 kV) subjected to 120 thermal cycles between -35 degrees C and + 100 C are presented. The structural modifications were investigated by thermal analysis methods (TG, DTG and DTA), showing that during the thermal cycling the degree of cross-linking of polyethylene increases and the degree of crystallinity decreases. Dielectric modifications of polyethylene due to thermal cycling were determined by using the dielectric spectroscopy method in range 10(-2) divided by 10(6) Hz, for 30 degrees C but also for 100 degrees C. After 120 thermal cycles the results obtained show that tg delta for 30 degrees C increases slowly for frequencies higher than 100 Hz and substantial for frequencies lower than 100 Hz. This increase is more pronounced for 100 degrees C (up to 100 %) especially for frequencies between 10(-2) divided by 2.10(3) Hz.

引用

页数：4

共 50 条

[21] Fast PCR thermal cycling device
Grover, Joel
Juncosa, Robert D.
Stoffel, Nancy
Boysel, Mark
Brooks, Andrew I.
McLoughlin, Michael P.
Robbins, David W.
IEEE SENSORS JOURNAL, 2008, 8 (5-6) : 476 - 487
[22] Ageing and Thermal Cycling Effects in Shape Memory Alloys
Shimizu, Ken'ichi
Microscopy, 1985, 34 (04) : 277 - 288
[23] Evaluation of Accelerated Ageing Cables Used in Nuclear Power Plant
Lee, Sang-hwa
Lee, Jae-do
Kim, Moon-young
Jang, Hong-seok
Jeong, Choong-heui
PROCEEDINGS OF 2012 IEEE INTERNATIONAL CONFERENCE ON CONDITION MONITORING AND DIAGNOSIS (IEEE CMD 2012), 2012, : 681 - 684
[24] Evaluation of accelerated ageing cables used in nuclear power plant
Instrumentation and Control and Electrical System Evaluation Department, Korea Institute of Nuclear Safety, Daejeon, Korea, Republic of
Proc. IEEE Int. Conf. Cond. Monit. Diagn., CMD, (681-684):
[25] An investigation of the ageing of the electrical insulating materials in power cables and capacitors
Andreyev, AM
Kaniskin, VA
Polonskii, YAA
ELECTRICAL TECHNOLOGY RUSSIA, 1999, (01): : 29 - 38
[26] Effect of insulator environment on thermal ageing estimations for ethylene propylene rubber insulated nuclear power plant cables
Alshaketheep, Tariq
Murakami, Kenta
Sekimura, Naoto
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 2016, 53 (09) : 1366 - 1370
[27] The effect of thermal ageing on electrical and mechanical properties of thermoplastic nanocomposite insulation of power high-voltage cables
El Sherkawy, E.
Nasrat, L. S.
Rihan, M.
ELECTRICAL ENGINEERING & ELECTROMECHANICS, 2024, (03) : 66 - 71
[28] Observations on structural changes under thermal ageing of cross-linked polyethylene used as power cables insulation
Boukezzi, Larbi
Boubakeur, Ahmed
Laurent, Christian
Lallouani, Mouhamed
IRANIAN POLYMER JOURNAL, 2008, 17 (08) : 611 - 624
[29] Ageing Due to Thermal Cycling by Power Regulation Cycles in Lifetime Estimation of Hydroelectric Generator Stator Windings
Kokko, Voitto I. J.
2012 XXTH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES (ICEM), 2012, : 1559 - 1564
[30] Electromagnetic and Thermal Aspects of a Fast Field Cycling NMR Equipment Magnet and Power Supply
Pereira, Bruno
Sousa, Duarte M.
Roque, Antonio
PROCEEDINGS 2015 9TH INTERNATIONAL CONFERENCE ON CAMPATIBILITY AND POWER ELECTRONICS (CPE), 2015, : 403 - 408

← 1 2 3 4 5 →