Study on features of ferromagnetic resonance 110 kV substation and it's eliminating method
Study on features of ferromagnetic resonance 110 kV substation and it's eliminating method
- Author(s): Gao Qiang ; Lai Tianyu ; Lai Qingbo
- DOI: 10.1049/cp:19970456
For access to this article, please select a purchase option:
Buy conference paper PDF
Buy Knowledge Pack
IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.
14th International Conference and Exhibition on Electricity Distribution (CIRED 1997 - Distributing Power for the Millennium) — Recommend this title to your library
Thank you
Your recommendation has been sent to your librarian.
- Author(s): Gao Qiang ; Lai Tianyu ; Lai Qingbo Source: 14th International Conference and Exhibition on Electricity Distribution (CIRED 1997 - Distributing Power for the Millennium), 1997 page ()
- Conference: 14th International Conference and Exhibition on Electricity Distribution (CIRED 1997 - Distributing Power for the Millennium)
- DOI: 10.1049/cp:19970456
- ISBN: 0 85296 674 1
- Location: Birmingham, UK
- Conference date: 2-5 June 1997
- Format: PDF
Based on the oscillograms recorded during tests of ferromagnetic resonance in many 110 kV substations, this paper reveals some important features which are not yet known and different from that in a 10-66 kV neutral isolated system. It also suggests a method, by the aid of zero sequence channel of the open delta winding of potential transformer, as well as the assistance of introducing a positive sequence auxiliary line into the resonance circuit as a damper, to eliminate the resonance both of zero sequence and positive sequence nature. Based on this method a computer-aided resonance eliminating device, using thyristors as damping elements, has been developed and operated successfully in some substations in China for five years. This paper also introduces the structural principle of this device. (7 pages)
Inspec keywords: thyristor applications; busbars; substations; ferromagnetic resonance; transformer windings; potential transformers; damping
Subjects: Transformers and reactors; Substations
Related content
content/conferences/10.1049/cp_19970456
pub_keyword,iet_inspecKeyword,pub_concept
6
6