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General definition of unbalanced power to calculate and assess unbalance of customer installations

Conference Paper


Abstract


  • Present IEC reports (e.g. IEC 61000-3-13 or IEC 61000-3-14) provide a simplified assessment rule based on the ratio of the single-phase equivalent power Sui of an unbalanced customer installation and the short-circuit power Ssc at the point of connection. However, the calculation of the unbalanced power Sui is not clearly defined in the documents, but is crucial for the proper application. This paper provides a general definition to this power equivalent for a customer installation which defines its contribution to voltage unbalance at the point of connection. This definition covers both consuming and generating equipment and can be applied for planning purposes and to assess unbalance of customer installations in operation by measurements.

Authors


  •   Meyer, Jan (external author)
  •   Moller, Friedemann (external author)
  •   Perera, Sarath
  •   Elphick, Sean T. (external author)

Publication Date


  • 2019

Citation


  • J. Meyer, F. Moller, S. Perera & S. Elphick, "General definition of unbalanced power to calculate and assess unbalance of customer installations," in 2019 Electric Power Quality and Supply Reliability Conference and 2019 Symposium on Electrical Engineering and Mechatronics, PQ and SEEM 2019, 2019, pp. 1-6.

Scopus Eid


  • 2-s2.0-85072758823

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3231

Start Page


  • 1

End Page


  • 6

Place Of Publication


  • United States

Abstract


  • Present IEC reports (e.g. IEC 61000-3-13 or IEC 61000-3-14) provide a simplified assessment rule based on the ratio of the single-phase equivalent power Sui of an unbalanced customer installation and the short-circuit power Ssc at the point of connection. However, the calculation of the unbalanced power Sui is not clearly defined in the documents, but is crucial for the proper application. This paper provides a general definition to this power equivalent for a customer installation which defines its contribution to voltage unbalance at the point of connection. This definition covers both consuming and generating equipment and can be applied for planning purposes and to assess unbalance of customer installations in operation by measurements.

Authors


  •   Meyer, Jan (external author)
  •   Moller, Friedemann (external author)
  •   Perera, Sarath
  •   Elphick, Sean T. (external author)

Publication Date


  • 2019

Citation


  • J. Meyer, F. Moller, S. Perera & S. Elphick, "General definition of unbalanced power to calculate and assess unbalance of customer installations," in 2019 Electric Power Quality and Supply Reliability Conference and 2019 Symposium on Electrical Engineering and Mechatronics, PQ and SEEM 2019, 2019, pp. 1-6.

Scopus Eid


  • 2-s2.0-85072758823

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/3231

Start Page


  • 1

End Page


  • 6

Place Of Publication


  • United States