Calculation of the positive-sequence reactance of power transformers by using the results of magnetic energy from the numerical simulation of 3D magnetostatic fields Articles uri icon

publication date

  • December 2013

start page

  • 85

end page

  • 87

issue

  • DEC

volume

  • 105

International Standard Serial Number (ISSN)

  • 0378-7796

Electronic International Standard Serial Number (EISSN)

  • 1873-2046

abstract

  • This paper shows an exact method to compute the positive-sequence reactance of power transformers by using the results of magnetic energy from the numerical simulation of 3D magnetostatic fields. The method consists in averaging the results of three 3-phase simulations without zero-sequence current (and the corresponding deduction is shown). The proposed method is applied to three examples, and the results are compared with the measured values.

keywords

  • power transformers; symmetrical components; numerical methods for computing; magnetostatic fields