Lifetime dependence on relative humidity of polymers subjected to PD aging

Author

Bozzo, Riccardo ; Gemme, C. ; Guastavino, F. ; Tiemblo, P.

Author_Institution

Dipt. di Ingegneria Elettrica, Genova Univ., Italy

Volume

2

fYear

1996

fDate

20-23 Oct 1996

Firstpage

838

Abstract

The work presented in this paper consists of a systematic study on the influence of moisture on the behaviour of polymers submitted to Partial Discharges. Three chemically different polymers have been submitted to PD until breakdown, varying the relative humidity from 17% to 83%. Qualitatively the same evolution of the samples´ lifetime with moisture is found for the three of them. Lifetime increases with increasing humidity up to a critical value; further increase in moisture involves quick diminishing of lifetime. This value seems to depend on the ability to absorb water of each of the polymers

Keywords

ageing; environmental degradation; humidity; insulation testing; life testing; moisture; organic insulating materials; partial discharges; polymers; PD aging; breakdown; lifetime; moisture; partial discharge; polymer; relative humidity; water absorption; Aging; Dielectrics and electrical insulation; Electric breakdown; Electrodes; Humidity; Moisture; Partial discharges; Plastic insulation; Polymer films; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on

Conference_Location

Millbrae, CA

Print_ISBN

0-7803-3580-5

Type

conf

DOI

10.1109/CEIDP.1996.564638

Filename

564638