Title :
The effects of steep-front, short-duration impulses on power distribution components
Author :
Miller, David B. ; Lux, Andre E. ; Grzybowski, Stanislaw ; Barnes, Paul R.
Author_Institution :
Mississippi State Univ., MS, USA
fDate :
4/1/1990 12:00:00 AM
Abstract :
A line-type pulser has been developed to test the effects of steep-front, short-duration (SFSD) pulses on distribution components. The risetime is 50-100 ns and the pulse duration is on the order of 300 ns. Terminators often shattered or punctured rather than flashing over. The insulator flashover voltage is approximately 1.5 times CFO for standard lightning impulses. Arresters exhibit an inductive character, with the SFSD peak voltage at 10 kA approximately 4-5 times the 8-pulse×20-μs 10 kA discharge voltage. Polyethylene insulated cable has a characteristic degradation in which failure voltage decreases with number of SFSD pulses
Keywords :
cable insulation; electric connectors; high-voltage techniques; organic insulating materials; polymers; power cables; surge protection; 300 mus; 50 to 100 mus; arresters; discharge voltage; insulator flashover voltage; lightning impulses; polyethylene insulated cable; power distribution components; short-duration impulses; steep front impulses; terminators; Arresters; Cable insulation; Degradation; Flashover; Lightning; Polyethylene; Power cable insulation; Power cables; Testing; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
