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Estimation of the Zero Sequence Voltage on the D-side of a Dy Transformer by Using One Voltage Transformer on the D-side

Sulla, Francesco LU and Samuelsson, Olof LU (2008) 9th International Conference on Developments in Power System Protection (DPSP2008) p.517-522
Abstract
The usual practice to measure the zero sequence voltage on the D-side of a transformer is to use three voltage transformers (VT), each of them connected between each phase and earth on the primary side and broken-delta connected on the secondary side. In this paper a method is presented for the estimation of the zero sequence voltage on the D-side of a Dy transformer by the use of only one VT connected between one phase and earth on the D-side and three VTs and current transformers (CT) on the y-side. The method is first introduced theoretically. Results from simulations and laboratory tests are then presented. The method proved to be accurate with an observed maximum error around 7% of nominal phase-to-earth voltage during transformer... (More)
The usual practice to measure the zero sequence voltage on the D-side of a transformer is to use three voltage transformers (VT), each of them connected between each phase and earth on the primary side and broken-delta connected on the secondary side. In this paper a method is presented for the estimation of the zero sequence voltage on the D-side of a Dy transformer by the use of only one VT connected between one phase and earth on the D-side and three VTs and current transformers (CT) on the y-side. The method is first introduced theoretically. Results from simulations and laboratory tests are then presented. The method proved to be accurate with an observed maximum error around 7% of nominal phase-to-earth voltage during transformer energization and below 1% in all other cases. (Less)
Please use this url to cite or link to this publication:
author
and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
current transformers nominal phase-to-earth voltage transformer energization voltage transformer zero sequence voltage zero sequence voltage estimation
host publication
The Institution of Engineering and Technology 9th international conference on developments in power systems protection : DPSP 2008, 17-20 March 2008.
pages
517 - 522
conference name
9th International Conference on Developments in Power System Protection (DPSP2008)
conference location
Glasgow, United Kingdom
conference dates
2008-03-17
external identifiers
  • scopus:67449097413
ISBN
978-0-86341-902-7
language
English
LU publication?
yes
id
e1aa4566-c9bd-4338-8b63-6a7894b07447 (old id 4357706)
alternative location
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4497039
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4497039&tag=1
date added to LUP
2016-04-04 14:22:26
date last changed
2022-01-30 01:55:37
@inproceedings{e1aa4566-c9bd-4338-8b63-6a7894b07447,
  abstract     = {{The usual practice to measure the zero sequence voltage on the D-side of a transformer is to use three voltage transformers (VT), each of them connected between each phase and earth on the primary side and broken-delta connected on the secondary side. In this paper a method is presented for the estimation of the zero sequence voltage on the D-side of a Dy transformer by the use of only one VT connected between one phase and earth on the D-side and three VTs and current transformers (CT) on the y-side. The method is first introduced theoretically. Results from simulations and laboratory tests are then presented. The method proved to be accurate with an observed maximum error around 7% of nominal phase-to-earth voltage during transformer energization and below 1% in all other cases.}},
  author       = {{Sulla, Francesco and Samuelsson, Olof}},
  booktitle    = {{The Institution of Engineering and Technology 9th international conference on developments in power systems protection : DPSP 2008, 17-20 March 2008.}},
  isbn         = {{978-0-86341-902-7}},
  keywords     = {{current transformers nominal phase-to-earth voltage transformer energization voltage transformer zero sequence voltage zero sequence voltage estimation}},
  language     = {{eng}},
  pages        = {{517--522}},
  title        = {{Estimation of the Zero Sequence Voltage on the D-side of a Dy Transformer by Using One Voltage Transformer on the D-side}},
  url          = {{http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4497039}},
  year         = {{2008}},
}