The Study of Comparison of the Symmetrical Short Circuit Test Current with ANSI/IE Transformers.

변압기의 단락강도 시험 시 ANSI와 IEC 규격에 의한 시험 전류의 비교 연구

Transformers together with all equipment and accessories shall be designed and constructed to withstand the mechanical and thermal stresses produced by external short circuit which include three phase, single line-to-ground, double line-to-ground and line-to-line faults etc. Generally the Short Circuit Test of transformers is tested according to the ANSI/IEEE, IEC/JEC, KS etc, in domestic. In this study, it will be showed and compared the difference of symmetrical current for short circuit test of a Pad -mounted transformer according to with ANSI /IEEE and IEC.