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Comparison of superimposed voltage tests with spark gap and coupling capacitor at a gas-insulated model arrangement

Hallas, Martin ; Hinrichsen, Volker ; Tenzer, Michael (2022)
Comparison of superimposed voltage tests with spark gap and coupling capacitor at a gas-insulated model arrangement.
2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE). Chongqing, China (25.-29.09.2022)
doi: 10.26083/tuprints-00022987
Conference or Workshop Item, Secondary publication, Postprint

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Item Type: Conference or Workshop Item
Type of entry: Secondary publication
Title: Comparison of superimposed voltage tests with spark gap and coupling capacitor at a gas-insulated model arrangement
Language: English
Date: 2022
Place of Publication: Darmstadt
Year of primary publication: 2022
Publisher: IEEE
Book Title: 2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)
Collation: 6 ungezählte Seiten
Event Title: 2022 IEEE International Conference on High Voltage Engineering and Applications (ICHVE)
Event Location: Chongqing, China
Event Dates: 25.-29.09.2022
DOI: 10.26083/tuprints-00022987
Corresponding Links:
Origin: Secondary publication service
Abstract:

Superimposed voltage tests are widespread to qualify HVDC equipment. Two possible test circuits are used, which result in different voltage shapes: superimposition by a coupling capacitor or by a spark gap. So far, there is no data available, which compares the resulting breakdown voltages of both methods with each other. This paper closes this gap by determination of the breakdown voltage at a model arrangement using both methods. The investigation was focused on gas-insulated systems, which are a typical application in HVDC. The model arrangement was built such that it represents a typical gas-solid interface in a coaxial GIL assembly. HVDC effects were included by heating of the earthed electrode. The determination of reproducible data was challenging, but could be achieved by adaptions inside the test circuit, as well as a suitable test procedure. The collected data with the built test arrangement is presented and discussed further in this paper. Based on the results a first conclusion is given, whether the different voltage shapes resulting from the use of a coupling capacitor and a spark gap, respectively, also result in different breakdown voltages.

Uncontrolled Keywords: Couplings, Breakdown voltage, Voltage measurement, Spark gaps, Shape, HVDC transmission, Capacitors
Status: Postprint
URN: urn:nbn:de:tuda-tuprints-229878
Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Electrical Power Systems > High Voltage Technology
Date Deposited: 09 Dec 2022 12:45
Last Modified: 21 Dec 2022 07:36
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/22987
PPN: 502757922
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