Electrical performance of 115 kV transmission line fiberglass crossarm used by MP&L

Author

Grzybowski, S. ; Libby, A.L. ; Jenkins, E.B. ; Davis, C.R.

Author_Institution

Dept. of Electr. & Comput. Eng., Mississippi State Univ., MS, USA

fYear

1991

fDate

7-10 Apr 1991

Firstpage

1245

Abstract

The authors present the results of an investigation of the electrical performance of 115 kV transmission line fiberglass crossarms used by the Mississippi Power & Light Company. Three 115 kV transmission line fiberglass crossarms removed from service and three identical ones were examined. The evaluation of electrical performance was based on flashover voltage value at AC voltage and standard lightning impulse. Flashover voltages were measured under dry and wet conditions. The impulses used in the tests had positive polarity. The obtained flashover voltages showed no large difference in the electrical strength of fiberglass crossarms removed from service and those stored outdoors

Keywords

electric strength; flashover; glass fibres; high-voltage techniques; impulse testing; poles and towers; 115 kV; AC voltage; Mississippi Power and Light Company; dry conditions; electrical performance; electrical strength; flashover voltage; positive polarity; standard lightning impulse; transmission line fiberglass crossarms; wet conditions; Dielectrics and electrical insulation; Flashover; Insulator testing; Laboratories; Optical fiber devices; Optical fiber testing; Power transformer insulation; Power transmission lines; Transmission lines; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '91., IEEE Proceedings of

Conference_Location

Williamsburg, VA

Print_ISBN

0-7803-0033-5

Type

conf

DOI

10.1109/SECON.1991.147968

Filename

147968