Research on Online Assessment of Switch Resistance Based on Real-time Current Measurement

DOI

10.2991/meic-14.2014.13How to use a DOI?

Keywords

online assessment; Real-time Current; switch resistance; power system; 3/2 wiring

Abstract

The evaluation of switch resistance has aroused widespread concern.To assess the resistance of switchgear in switching substations which use 3/2 wiring, online assessment method based on real-time current measurements is proposed in this paper. The method use Kirchhoff’s law to establish the mathematical model of switching substations which use 3/2 wiring. It calculates the resistance of switchgear as finding solutions of non-homogeneous linear equations.The minimum number of current to be measured is determined by these equations. We can get a lot of current conditions in real-time from the current transformer.We can derive the required current conditions to establishe the model so we can get the answer. Finally, this article uses operating data of a 500kV substation to calculate the resistance of switchgear. The simulation results reflect the effectiveness of the algorithm Comparing with the traditional method, this method is easier and more accurate.S0 an effective way is provided To assess the switch resistance

Copyright

© 2014, 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  - Jiankun Liu
AU  - Jing Bu
AU  - Qian Zhou
AU  - Chenggen Wang
AU  - Yang Hou
AU  - Minghui Yin
PY  - 2014/11
DA  - 2014/11
TI  - Research on Online Assessment of Switch Resistance Based on Real-time Current Measurement
BT  - Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 52
EP  - 56
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-14.2014.13
DO  - 10.2991/meic-14.2014.13
ID  - Liu2014/11
ER  -