Title :
Accelerated environmental and electrical aging of polymer insulators
Author :
Xu, Guoxiang ; McGrath, Paul B. ; Burns, Clayton W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Clarkson Univ., Potsdam, NY, USA
Abstract :
Experimental results of accelerated aging tests conducted on two types of high voltage polymeric outdoor insulators are presented. The investigated housing polymers were ethylene propylene diene monomer (EPDM) and silicone rubber (SR). The polymer performance under environmental stresses and electrical stresses were studied separately by using a programmable weather-ometer and a rotating wheel test setup, respectively. Results show a good performance for silicone rubber under some environmental stresses, but a poor resistance to surface tracking and erosion caused by dry-band associated glow or partial arc discharges
Keywords :
ageing; environmental degradation; environmental testing; glow discharges; high-voltage engineering; insulator testing; leakage currents; life testing; partial discharges; permittivity; polymer insulators; silicone rubber insulators; surface discharges; EPDM; HV outdoor insulators; accelerated ageing tests; dry-band associated glow; electrical aging; electrical stresses; environmental aging; environmental stresses; ethylene propylene diene monomer; high voltage insulators; housing polymers; partial arc discharges; polymer insulators; programmable weather-ometer; rotating wheel test setup; silicone rubber; surface erosion; surface tracking; Accelerated aging; Insulator testing; Plastic insulation; Polymers; Rubber; Stress; Strontium; Surface resistance; Voltage; Wheels;
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
DOI :
10.1109/CEIDP.1996.564713
