A New Strategy of Transformer Oil Chromatogram Alarm

DOI

10.2991/meic-15.2015.175How to use a DOI?

Keywords

transformer; oil chromatogram; statistics; threshold; alarm

Abstract

Aiming at the fault early warning of transformer oil chromatographic commonly used the methods in the national standard. In this paper, a method is proposed to obtain alarm thresholds of each component gas within transformer oil chromatogram based on statistical analysis of numerous data. Compared with the value specified in national standard, the threshold obtained there is relatively conservative and can effectively prevent the potential failure from developing. Followed by that, on the basis of determining each gas threshold, through Pearson correlation analysis, a combination alarm strategy with decision-supporting gas group is proposed. Such method can effectively avoid false alarm due to chromatography measurement error caused by equipment, human and environment factors, so that the alarm accuracy can be improved. The application of the theoretical results in this paper will provide a refined fault early warning method of transformer oil chromatogram to the substation operation and maintenance staffs.

Copyright

© 2015, 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  - Qishen Lv
AU  - Mu Li
AU  - Linfa Li
AU  - Ronghui Huang
PY  - 2015/04
DA  - 2015/04
TI  - A New Strategy of Transformer Oil Chromatogram Alarm
BT  - Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 768
EP  - 771
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-15.2015.175
DO  - 10.2991/meic-15.2015.175
ID  - Lv2015/04
ER  -