NDLI: Frequency Responses of MV voltage transformers in the range of 50 Hz to 10 kHz

Content Provider	IEEE Xplore Digital Library
Author	Klatt, M. Meyer, J. Elst, M. Schegner, P.
Copyright Year	2010
Description	Author affiliation: RITZ Instrument Transformers GmbH, location Dresden, Bergener Ring 65 - 67, D-01458 Ottendorf-Okrilla, Germany (Elst, M.) \|\| Institute of Electrical Power Systems and High Voltage Engineering, Technische Universitaet Dresden, D-01062, Germany (Klatt, M.; Meyer, J.; Schegner, P.)
Abstract	Voltage quality plays an important role in modern distribution networks. One voltage quality parameter is harmonic distortion. Voltage harmonics in MV-networks are measured in most cases by using installed inductive voltage transformers (IVT). The accuracy of these transformers for frequencies above nominal frequency (50Hz or 60Hz) is usually not known. The paper presents a systematic analysis of the frequency-dependent accuracy of these IVT's for harmonic measurements in the frequency range up to 10 kHz and it's dependency from different factors and operating conditions. After an overview of possible factors that influence the frequency response, the used measurement equipment and methodology is described. The frequency responses of more than 85 IVT's with rated primary voltages between 10 kV and 35 kV were measured and analysed. The significance of each influencing factor to the frequency response is discussed and finally a frequency-dependent measurement uncertainty range for 20 kV IVT's is proposed.
Starting Page	1
Ending Page	6
File Size	1637256
Page Count	6
File Format	PDF
ISBN	9781424472444
e-ISBN	9781424472468
e-ISBN	9781424472451
DOI	10.1109/ICHQP.2010.5625484
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-26
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Standards measurement errors voltage transformers frequency response power system harmonics power quality
Content Type	Text
Resource Type	Article

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