IDEAS home Printed from https://ideas.repec.org/a/eee/matcom/v63y2003i3p407-419.html
   My bibliography  Save this article

Analytical model of a T-connected three-phase transformer

Author

Listed:
  • Olivier, Guy
  • Cojocaru, Radu
  • Lefèvre, Anthony

Abstract

Three-phase transformers usually consist of three sets of windings connected in Wye, delta or zigzag on three individual cores or on a single three-phase one. Two single-phase transformers can also be used in a less than well-known way called the T-connection. Depending on the actual connection, as in conventional three-phase transformers, secondary voltages are in phase or displaced by ±30°. Due to the reduced number of windings, the T-connected transformer can be economically produced. However, since it is an asymmetrical connection, the short-circuit impedances of the individual phases are not identical, leading to unbalanced load voltages and short-circuit currents. An analytical model of the T-connected transformer has been developed to evaluate the effects of the impedance unbalance. This model based on single-phase short-circuit tests can be used to determine voltage unbalances, active and reactive transformer losses and short-circuit impedances.

Suggested Citation

  • Olivier, Guy & Cojocaru, Radu & Lefèvre, Anthony, 2003. "Analytical model of a T-connected three-phase transformer," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 63(3), pages 407-419.
    • Handle: RePEc:eee:matcom:v:63:y:2003:i:3:p:407-419
    DOI: 10.1016/S0378-4754(03)00085-5
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0378475403000855
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/S0378-4754(03)00085-5?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:matcom:v:63:y:2003:i:3:p:407-419. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/mathematics-and-computers-in-simulation/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.