Title :
New casting materials in large rotary machines
Author :
Nejdl, Radek ; Mentlik, Vaclav ; Trnka, P.
Author_Institution :
Dept. of Technol. & Meas., Univ. of West Bohemia in Pilsen, Pilsen, Czech Republic
fDate :
June 30 2013-July 4 2013
Abstract :
This paper present a study of casting compounds used in the electrical industry, especially in manufacturing and repairs of electric rotary machines. The basic types of casting resins and their basic application in the electrical industry are described. This paper focuses on electrical and mechanical properties of selected casting resins. The chosen diagnostic system should give an objective point of view on this usage of chosen casting compounds. The measurements of selected properties of chosen materials were performed. The materials are compared from the point of dielectric properties (reading of polarization and depolarization currents, volume resistivity, dissipation factor and breakdown voltage), flexural and tensile strength. At the end obtained results are discussed.
Keywords :
casting; electric breakdown; electric machines; electrical resistivity; polarisation; resins; breakdown voltage; casting compounds; casting materials; depolarization currents; diagnostic system; dielectric properties; dissipation factor; electric rotary machines; electrical industry; electrical properties; flexural strength; large rotary machines; mechanical properties; polarization currents; repairs; selected casting resins; tensile strength; volume resistivity; Casting; Compounds; Dielectric measurement; Dielectrics; Resins; Temperature measurement; casting compound; dielectric absorption; dielectric losses; dielectric strength; epoxy resin; flexural strength; polyurethane resin; tensile strength;
Conference_Titel :
Solid Dielectrics (ICSD), 2013 IEEE International Conference on
Conference_Location :
Bologna
Print_ISBN :
978-1-4799-0807-3
DOI :
10.1109/ICSD.2013.6619911
