Title :
DC contamination performance of station insulators
Author :
Naito, K. ; Kunieda, S. ; Hasegawa, Y. ; Ito, S.
Abstract :
The authors describe the results of an investigation of the contamination performance of equipment insulators under the application of a DC voltage. Artificial contamination tests on insulators with various shed profiles were carried out. In addition to total leakage distance, shed profile is found to play a role in determining the DC withstand voltage. Deep-rib-type insulators exhibit a superior DC contamination performance compared to other types of insulators. Anticontamination design criteria that are based on the results of the investigation are given for DC equipment insulators.<>
Keywords :
insulators; DC equipment insulators; DC voltage; DC withstand voltage; contamination performance; shed profiles; station insulators; total leakage distance; Accidents; Contamination; Flashover; HVDC transmission; Insulation; Insulator testing; Large-scale systems; Surges; Transmission lines; Voltage;
Journal_Title :
Electrical Insulation, IEEE Transactions on
