Analysis of A 220kV Current Transformer Explosion Accident

DOI

10.2991/icmmct-16.2016.288How to use a DOI?

Keywords

current transformer; fault analysis; power quality; harmonic voltage; flicker

Abstract

In this paper, the explosion accident of a 220kV current transformer in a 220kV substation is studied. It uses method of scene investigation and test to analyses the accident based on the principle and characteristics of current transformer. Through the analysis, this paper holds that reducing in main insulation electrical strength caused by Long-term high harmonic voltage and main insulation breakdown caused by flicker impact are main causes of the accident. And it also proposes a variety of management methods and technical measures to avoid this kind of accident. This paper provides a reference for the analysis of the same type of accident.

Copyright

© 2016, 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  - Yi Zhu
AU  - Hua Rong
AU  - Xu Liu
AU  - Honggang Ren
AU  - Shimin Wang
AU  - Aimin Wang
AU  - Hai Wang
AU  - Jia Wang
PY  - 2016/03
DA  - 2016/03
TI  - Analysis of A 220kV Current Transformer Explosion Accident
BT  - Proceedings of the 2016 4th International Conference on Machinery, Materials and Computing Technology
PB  - Atlantis Press
SP  - 1450
EP  - 1454
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmct-16.2016.288
DO  - 10.2991/icmmct-16.2016.288
ID  - Zhu2016/03
ER  -