Effect of core diameter of cylindrical polymer insulators on contamination flashover voltage—part I

Gautam, Basanta Kumar; Matsumura, Shigeki; Sakanishi, Kenji; Matsuoka, Ryosuke; Ito, Masako

doi:10.1002/tee.20071

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The composite long rod insulators have a special configuration of a very small ratio of trunk diameter to shed diameter, in which the current density on the trunks is much higher than on the sheds, and then a consequence of evenly distributed multiple interruption is to be expected at the trunks of the insulators [19]. For this reason, the voltages of localized arc discharges are increased and arc levitations are restrained.…”

Section: Comparison Of Flashover Performances Of Porcelain Long Rod mentioning

confidence: 99%

Comparison of pollution flashover performance of porcelain long rod, disc type, and composite UHVDC insulators at high altitudes

Yang

Hao

et al. 2012

IEEE Trans. Dielect. Electr. Insul.

View full text Add to dashboard Cite

Aiming at porcelain long rod, disc type and composite long rod UHVDC insulators, this paper presents a comparison of their dc pollution flashover performances and an analysis of arcing behavior at high altitudes (1970m). The solid layer method was used in artificial pollution tests, in which sodium chloride and kaolin powder were used to simulate conductive and inert materials. The insulators were wetted by steam fog in a fog chamber. The 50% flashover voltage (U 50% ) was measured with the up-and-down method. According to the test results, the three types of insulators are similar in the characteristic exponent which characterizes influence of the salt deposit density on the flashover voltage. Due to lower utilization ratio of leakage distances, pollution flashover voltage gradient for the porcelain long rod insulators is lower than that for the disc type insulators. Whereas covered with Room Temperature Vulcanized (RTV) silicone rubber coatings on the trunk surfaces, the porcelain long rod insulator is much superior to the disc type insulators in pollution flashover voltage gradient. The dc pollution flashover performance and the utilization ratio of leakage distances for the composite long rod insulators are much better than those for the other two types of insulators, which are induced by the special configuration of composite long rod insulators.

show abstract

Section: Comparison Of Flashover Performances Of Porcelain Long Rod mentioning

confidence: 99%

Comparison of pollution flashover performance of porcelain long rod, disc type, and composite UHVDC insulators at high altitudes

Yang

Hao

et al. 2012

IEEE Trans. Dielect. Electr. Insul.

View full text Add to dashboard Cite

show abstract

Effect of core diameter of cylindrical polymer insulators on contamination flashover voltage—part I

Cited by 1 publication

References 0 publications

Comparison of pollution flashover performance of porcelain long rod, disc type, and composite UHVDC insulators at high altitudes

Comparison of pollution flashover performance of porcelain long rod, disc type, and composite UHVDC insulators at high altitudes

Contact Info

Product

Resources

About