Prototypes of polymer-impregnated reforested wood crossarms subjected to partial discharge tests

被引:2
作者
Altafim, RAC [1 ]
Woschitz, R [1 ]
Ribeiro, C [1 ]
Muhr, M [1 ]
Silva, JFR [1 ]
Calil, C [1 ]
Basso, HC [1 ]
Sumereder, C [1 ]
Altafim, RAP [1 ]
Silveira, A [1 ]
机构
[1] Univ Sao Paulo, Sao Carlos Sch Engn, Sao Paulo, Brazil
来源
Proceedings: Electrical Insulation Conference and Electrical Manufacturing Conference | 2005年
关键词
D O I
10.1109/EEIC.2005.1566295
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Brazil's vast territory and huge forested regions have contributed to the widespread use of traditional crossarms made of native wood species in distribution lines. However, this situation is changing due to the increasingly high cost of native species and Brazil's environmental laws. In response to these changes, electric power suppliers have been seeking alternatives, and prototypes of reforested wood crossarms (such as Eucalyptus citriodora) impregnated with polymer (castor oil-based polyurethane resin) have been studied for application as mechanical supports for electrical power distribution systems, with very satisfactory results. This paper discusses mechanical and electrical tests conducted on this new material under critical conditions of temperature and relative air humidity. Also presented are the results of electrical tests conducted at Graz Technology University's Institute of High Voltage Engineering and System Management in Austria to analyze the materials insulation performance under electrical stress, particularly under partial discharge during critical operating conditions.
引用
收藏
页码:225 / 228
页数:4
相关论文
共 12 条
[1]  
Altafim RAC, 2002, 2002 ANNUAL REPORT CONFERENCE ON ELECTRICAL INSULATION AND DIELECTRIC PHENOMENA, P335, DOI 10.1109/CEIDP.2002.1048803
[2]  
ALTAFIM RAC, 2004 IEEE S EL INS I, P556
[3]  
Altafim Ruy Alberto Corrêa, 2003, Mat. Res., V6, P187
[4]  
Asboll E., 1988, International Conference on Overhead Line Design and Construction: Theory and Practice (up to 150KV) (Conf. Publ. No.297), P36
[5]  
*ASMT, 1996, D638 ADM
[6]  
*ASS BRAS NORM TEC, NBR 5434 RED DISTR A
[7]  
*ASS BRAS NORM TEC, 1992, 6936 NBR ASS BRAS NO
[8]  
ASSOCIACAO BRASILEIRA DE NORMAS TECNICAS, 1997, NBR 7190 PROJ ESTR M
[9]  
*INT EL COMM, 60068238 IEC
[10]  
LIEBEL SA, 1994, PROCEEDINGS OF THE 1994 IEEE POWER ENGINEERING SOCIETY TRANSMISSION AND DISTRIBUTION CONFERENCE, P581, DOI 10.1109/TDC.1994.328427