Title :
Effect of wheel speed on the tracking time in a rotating wheel-spray tracking test
Author :
Salama, M.M.A. ; Sallam, M.M. ; Bartnikas, R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
fDate :
7/1/1994 12:00:00 AM
Abstract :
A low speed rotating wheel spray test procedure for insulation is described and typical results are presented on a number of low tracking resistance polymers. It is found that the time to tracking is a monotonically increasing function of the wheel speed at low speeds of up to 2.0 RPM. This reverse behavior of what normally occurs at high wheel speeds is explained in terms of residence times of the specimen in the water spray and in the air as a function of the speed
Keywords :
electric breakdown of solids; insulation testing; organic insulating materials; polymers; test equipment; air; electric breakdown; insulation testing; polymers; residence times; reverse behavior; rotating wheel spray test procedure; tracking time; water spray; wheel speed; Electric resistance; IEC standards; Insulation life; Laboratories; Materials testing; Organic materials; Spraying; Surface resistance; Voltage; Wheels;
Journal_Title :
Power Delivery, IEEE Transactions on
