Detection and localization of internal turn-to-turn short circuits in transformer windings by means of negative sequence analysis

سال انتشار: 1393
محل انتشار: بیست و نهمین کنفرانس بین المللی برق
کد COI اختصاصی: PSC29_303
زبان مقاله: انگلیسی
تعداد مشاهده: 948

نویسندگان

Faculty of Electrical and Computer Engineering BabolNoshirvani University of Technology Babol, Iran

چکیده

Internal turn-to-turn short circuits are the most difficult types of faults to detect within the transformers. This paper proposes a new, simple and efficient algorithm in order to protect transformers against these faults. Using this protection algorithm which is based on negative sequence analysis, make it possible to detect and also locate low level inter-turn short circuits which typically cannot be detected by the traditional differential algorithm before they extended into more severe faults. Furthermore, the proposed algorithm is stable in the case of external faults as well as load imbalance condition. In this work, first, a typical transformer is modeled based on Finite Element Method to simulate the transformer behavior under different operation conditions. Then, the accuracy and performance of new protection technique in detection and localization of inter-turn faults is studied by applying it to the simulated transformer.

کلیدواژه ها

transformer; turn-to-turn fault; Finite Element Method; negative sequence analysis

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.