Improved transient hot-spot temperature calculation method of high voltage bushings

Author

Ko, C. ; Zhang, S.

Author_Institution

PCore Electr. Co., Subsidiary of Hubbell Power Syst., LeRoy, NY

fYear

2008

fDate

13-15 Aug. 2008

Firstpage

1

Lastpage

5

Abstract

The thermal transient is extremely important when evaluating a high-voltage bushing for overload capability. In this paper, we evaluate the previous methods by others in the effort of calculating bushing thermal transient and introduce our improved direct simulation method using ATP. We verify the validity of our method by comparing the simulation and actual test results which shows both match very well. We also use the method to evaluate the bushing overload condition recommended in IEEE C57.19.100 and the result shows the recommendation is not applicable.

Keywords

bushings; thermal analysis; transients; ATP simulation method; alternative transients program; bushing overload condition; high voltage bushings; thermal transient; transient hot-spot temperature calculation method; Capacitance; Circuits; Equations; Insulators; Power system modeling; Power system transients; Resistance heating; Steady-state; Temperature; Voltage; ATP; high voltage bushing; hot-spot temperature; thermal transient;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition: Latin America, 2008 IEEE/PES

Conference_Location

Bogota

Print_ISBN

978-1-4244-2217-3

Electronic_ISBN

978-1-4244-2218-0

Type

conf

DOI

10.1109/TDC-LA.2008.4641720

Filename

4641720