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More accurate modeling of gas insulated substation components in digital simulations of very fast electromagnetic transients

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3 Author(s)
Haznadar, Z. ; Fac. of Electr. Eng., Zagreb Univ., Yugoslavia ; Carsimamovic, S. ; Mahmutcehajic, R.

Very fast electromagnetic transients caused by switching operations in gas-insulated substations (GIS) cannot be calculated if conventional techniques of modeling and simulations are used. The choice and adjustments of the most suitable models as well as determinations of their limitations in the digital simulation of very fast transients in GIS are investigated. Results obtained from very extensive field tests as well as from digital simulations for different types of GIS have been used for the development of more accurate models for GIS components and GIS as a whole. A comparison between field test and calculation results enables the development of a model which takes into account the most decisive physical phenomena inherent in the very fast transients in the GIS. This is a prerequisite for designing and manufacturing power system components as well as for control and protection of the system

Published in:

Power Industry Computer Application Conference, 1991. Conference Proceedings

Date of Conference:

7-10 May 1991