Understanding the harmonic performance of voltage transformers for distribution system power quality monitoring

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Paper number
1168
Working Group Number
Conference name
CIRED 2019
Conference date
3-6 June 2019
Conference location
Madrid, Spain
Peer-reviewed
Yes
Short title
Convener
Authors
Peesapati, Vidyadhar, The University of Manchester, United Kingdom
Gardner, Richard, The University of Manchester, United Kingdom
King, James, Nortech Management Ltd, United Kingdom
Jupe, Samuel, Nortech Management Ltd, United Kingdom
Berry, Jonathan, Western Power Distribution, United Kingdom
Abstract
It is useful to understand the frequency response of voltage transformers used for power quality monitoring, so that power quality data is captured accurately and can be used for compliance purposes. This paper reports the results of frequency response testing conducted for Western Power Distribution at The University of Manchester of four 1-phase and 3-phase voltage transformers of types used in 11 kV and 33 kV distribution networks in Great Britain. The results show that the tested voltage transformers transfer harmonic voltages with attenuation that increases with frequency, and suggests that correction factors may be required to obtain accurate results at harmonic frequencies up to at least the 50th harmonic order.
Table of content
Keywords
Publisher
AIM
Date
2019-06-03
Permanent link to this record
https://cired-repository.org/handle/20.500.12455/329
http://dx.doi.org/10.34890/559
ISSN
2032-9644
ISBN
978-2-9602415-0-1