As one of the largest manufacturers of distribution and power transformers of the middle east, Arya Transfo co. in order to reassure its respectful customers and achieve international certificates of production quality,has achieved not only the results of the Routine and Type test done in arya transfoꞌs high voltage well equipped laboratories and that the results were admitted and the same as those of Netherland KEMA laboratories but also has been succeeded in achieving international certificates of Special tests in actual short circuit test for the 20 kv and 33 kv items as well.