Your browser does not support JavaScript!

Open wye-open delta and open delta-open delta transformer models for rigorous distribution system analysis

Open wye-open delta and open delta-open delta transformer models for rigorous distribution system analysis

For access to this article, please select a purchase option:

Buy article PDF
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

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.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Your details
Why are you recommending this title?
Select reason:
IEE Proceedings C (Generation, Transmission and Distribution) — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

This paper presents mathematical models of open wye-open delta and open delta-open delta transformers for rigorous distribution system studies. The copper and core losses, winding connection, phase angular displacement between primary and secondary windings, and off-nominal tapping are all taken into account in the proposed models. Because open wye-open delta and open delta-open delta transformer banks are quite often used in distribution system, for analysing a distribution system in detail the modelling of these transformers are therefore required.


    1. 1)
      • Dillon, W.E., Chen, M.S.: `Transformer modeling in unbalanced three-phase networks', IEEE Summer Power Meeting, July 1972, van Couver, .
    2. 2)
      • D.I. Sun , S. Abe , R.R. Shoults , M.S. Chen , P. Eichenberger , D. Farris . Calculation of energy losses in a distribution system. IEEE Trans. , 4 , 1347 - 1356
    3. 3)
      • Chen, T.H., Chen, M.S., Inoue, T., Kotas, P., Chebli, E.A.: `Three-phase cogenerator and transformer models for distribution system analysis', Presented at IEEE Winter Power Meeting, 1991.
    4. 4)
      • M.S. Chen , W.E. Dillon . Power system modeling. Proc. IEEE , 7 , 901 - 915
    5. 5)
      • N. Vempati , R.R. Shoults , M.S. Chen , L. Schwobel . Simplified feeder modeling forload flow calculations. IEEE Trans. , 1 , 168 - 174
    6. 6)
      • Taiwan Power Company, Taipei, Taiwan, : `Design manual of overhead distribution lines, in Distribution technical manual', , vol. II.
    7. 7)
      • Dillon, W.E.: `Modeling and analysis of an electrically propelled transportation system', May 1972, PhD Dissertation, University of Texas, Arlington.
    8. 8)
      • Chen, T.H., Chen, M.S., Lee, W.J., Kotas, P., Olinda, P.V.: `Distribution system short circuit analysis — a rigid approach', Proceedings of the 17th PICA Conference, May 1991, , p. 22–28.
    9. 9)
      • Chen, T.H., Chen, M.S., Hwang, K.J., Kotas, P., Chebli, E.A.: `Distribution system power flow analysis — a rigid approach', Presented at IEEE Winter Power Meeting, 1991.
    10. 10)
      • : `Determining load characteristics for transient performance', RP 849-3, Final Report of EPRI Project, 1978, Vol. I, II, III.
    11. 11)
      • F.L. Alvarado . Formation of y-node using the primitive y-node concept. IEEE Trans. , 12 , 4563 - 4571
    12. 12)
      • Chen, T.H.: `Generalized distribution analysis system', May 1990, PhD Dissertation, The University of Texas, Arlington.

Related content

This is a required field
Please enter a valid email address