RI, TVI and AN characteristics of HVDC insulator assemblies under contaminated condition

Author

Yasui, Mitsuru ; Takahishi, Y. ; Takenaka, Akira ; Naito, Katsuhiko ; Hasegawa, Yoshio ; KATo, Kazuhisa

Author_Institution

Tokyo Electr. Power Co. Inc., Japan

Volume

3

Issue

4

fYear

1988

fDate

10/1/1988 12:00:00 AM

Firstpage

1913

Lastpage

1921

Abstract

The results of investigations into radio interference, television interference and audible noise characteristics of full-scale insulator assemblies for DC±600 kV HVDC transmission lines under contaminated and wet conditions are discussed. The interference levels during partial discharges were measured and found to be nearly the same as those as those of existing AC 500 kV transmission lines. Emphasis was placed on the characteristics of partial flashovers known as specific sparkovers under DC voltage on one or a few units in a string. The interference levels during partial flashovers were much higher than those during partial discharges. An insulator with a high flashover voltage, such as one having a diameter of 460 mm, was effective in preventing partial flashovers, at least up to a voltage of ±650 kV

Keywords

acoustic noise; flashover; insulators; partial discharges; power transmission lines; radiofrequency interference; television interference; 650 kV; AC 500 kV transmission lines; HVDC insulator assemblies; HVDC transmission lines; audible noise characteristics; contaminated condition; flashovers; partial discharges; partial flashovers; radio interference; specific sparkovers; television interference; wet conditions; Acoustic noise; Assembly; Electromagnetic interference; Flashover; HVDC transmission; Insulation; Partial discharges; TV interference; Transmission line measurements; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.194000

Filename

194000