Short-circuit effects in HV substations with strained conductors-systematic full scale tests and a simple calculation method

Author

Herrmann, B. ; Stein, N. ; Kiessling, G.

Author_Institution

FGH Forschungsgemeinschaft fur Hochspannungs und Hochstromtechnik, Mannheim, West Germany

Volume

4

Issue

2

fYear

1989

fDate

4/1/1989 12:00:00 AM

Firstpage

1021

Lastpage

1028

Abstract

The dynamic short-circuit stresses in HV (high-voltage) substations with flexible conductors are determined by a large number of parameters. Tensile forces, stresses, and conductor displacements have been studied for short-circuit currents of 20-40 kA (RMS) in test arrangements representing strained conductors of typical 123 kV and 420 kV substations at a span length of 40 m. A simple calculation method based on the approach of IEC Publication 865 and DIN VDE 0103, but taking the short-circuit duration into account, has been developed, leading to reduced forces and displacements in the case of brief current flow

Keywords

conductors (electric); short-circuit currents; substations; 123 kV; 20 to 40 kA; 420 kV; DIN VDE 0103; HV substations; IEC Publication 865; conductor displacements; dynamic short-circuit stresses; short-circuit currents; strained conductors; tensile forces; Application software; Conductors; Finite element methods; IEC standards; Standards publication; Steel; Stress; Substations; Suspensions; System testing;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.25582

Filename

25582