Failure analysis of No.2 main transformer in Fushun SiShui substation

DOI

10.2991/icmmct-17.2017.193How to use a DOI?

Keywords

transformer; outlet short circuit; turn-to-turn short circuit; short circuit current; three ratio method

Abstract

the transformer is one of the most important equipment in power system, the maximum short current rated current is 25~30 times or more when an outlet short circuit occurs,short current will produce great mechanical force which is hundreds of times larger than the normal operation, Under the action of the huge short circuit electromagnetic force, many components such as the winding of the transformer may be damaged. This paper describes the whole process of of 2# main transformer in Fushun SiShui substation accident analysis, and the turn-to-turn short circuit accident of the winding is caused by interphase short circuit of the cable, this also provides a scientific basis for the transformer's fault detection.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - TianShu Hai
AU  - Xin Liu
AU  - ChengCheng Yue
AU  - Bo Li
AU  - Yan Liu
AU  - Jingzhong Li
AU  - Jie Sun
AU  - Yang Hu
AU  - Ying Li
AU  - Wenfeng Hao
PY  - 2017/04
DA  - 2017/04
TI  - Failure analysis of No.2 main transformer in Fushun SiShui substation
BT  - Proceedings of the 2017 5th International Conference on Machinery, Materials and Computing Technology (ICMMCT 2017)
PB  - Atlantis Press
SP  - 969
EP  - 972
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmct-17.2017.193
DO  - 10.2991/icmmct-17.2017.193
ID  - Hai2017/04
ER  -