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Commissioning and Service Experience With a ±550 kV DC GIL Conducted in Frame of a CIGRE Prototype Installation Test

Hallas, Martin ; Neumann, Claus ; Hinrichsen, Volker ; Gross, Detlev (2023)
Commissioning and Service Experience With a ±550 kV DC GIL Conducted in Frame of a CIGRE Prototype Installation Test.
In: IEEE Transactions on Power Delivery, 38 (4)
doi: 10.26083/tuprints-00024373
Article, Secondary publication, Postprint

Abstract

A newly developed ±550 kV DC GIL (direct current gas-insulated transmission line) prototype was erected at a HVDC test facility at the Technical University of Darmstadt to collect first service experience with this new equipment. The 100 m long DC GIL prototype is periodically stressed with DC voltage and DC current as well as superimposed impulse voltage. The test equipment was procured for the project and partly newly developed. The overall procedure follows the prototype installation test recommendations from CIGRE TB 842. This paper presents experience collected during the commissioning and long-term testing of the DC GIL prototype. The commissioning process, events occurred, as well as resulting conclusions for type, factory acceptance and site acceptance tests of DC GIL systems are discussed. The long-term operation of the DC GIL is intended to run continuously. Interruptions occur due to external influences only. Partial discharge events and the overall performance of the DC GIL prototype during long-term stress are presented.

Item Type: Article
Erschienen: 2023
Creators: Hallas, Martin ; Neumann, Claus ; Hinrichsen, Volker ; Gross, Detlev
Type of entry: Secondary publication
Title: Commissioning and Service Experience With a ±550 kV DC GIL Conducted in Frame of a CIGRE Prototype Installation Test
Language: English
Date: 2023
Place of Publication: Darmstadt
Publisher: IEEE
Journal or Publication Title: IEEE Transactions on Power Delivery
Volume of the journal: 38
Issue Number: 4
Collation: 11 Seiten
DOI: 10.26083/tuprints-00024373
URL / URN: https://tuprints.ulb.tu-darmstadt.de/24373
Corresponding Links:
Origin: Secondary publication service
Abstract:

A newly developed ±550 kV DC GIL (direct current gas-insulated transmission line) prototype was erected at a HVDC test facility at the Technical University of Darmstadt to collect first service experience with this new equipment. The 100 m long DC GIL prototype is periodically stressed with DC voltage and DC current as well as superimposed impulse voltage. The test equipment was procured for the project and partly newly developed. The overall procedure follows the prototype installation test recommendations from CIGRE TB 842. This paper presents experience collected during the commissioning and long-term testing of the DC GIL prototype. The commissioning process, events occurred, as well as resulting conclusions for type, factory acceptance and site acceptance tests of DC GIL systems are discussed. The long-term operation of the DC GIL is intended to run continuously. Interruptions occur due to external influences only. Partial discharge events and the overall performance of the DC GIL prototype during long-term stress are presented.

Uncontrolled Keywords: Gas insulation, HVDC transmission, Monitoring, Partial discharges, Testing, Prototypes, Voltage, Stress, Insulators, Temperature measurement
Status: Postprint
URN: urn:nbn:de:tuda-tuprints-243736
Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
600 Technology, medicine, applied sciences > 621.3 Electrical engineering, electronics
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electrical Power Systems > High Voltage Technology
18 Department of Electrical Engineering and Information Technology > Institute for Electrical Power Systems
Date Deposited: 28 Jul 2023 08:13
Last Modified: 31 Jul 2023 10:50
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