Analysis of the Causes of Electrical Accidents Caused by Operating Over-voltage of High Voltage Switchgear

DOI

10.2991/isaeece-16.2016.6How to use a DOI?

Keywords

high voltage switchgear; operating over-voltage; lightning arrester; transformer; power supply system

Abstract

In this paper, the lightning arrester explosion accident and transformer short-circuit accident in power supply system were analyzed in detail. It was found that the operating over-voltage caused by the frequent operation of the 35kV high voltage switchgear was the main cause of the accident. It was found that the frequent operation of high voltage switchgear had caused cumulative damage to the insulation property of high voltage power equipment. When the operating over-voltage exceeded the threshold value of insulation performance of power equipment, the insulation breakdown caused accidents. According to the characteristics of the power supply system, the reasonable suggestions were put forward, which was helpful to improve the safety performance of the power supply system.

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  - Jungang Zhou
AU  - Xueming Fan
AU  - Ya Liu
AU  - Lei Peng
PY  - 2016/04
DA  - 2016/04
TI  - Analysis of the Causes of Electrical Accidents Caused by Operating Over-voltage of High Voltage Switchgear
BT  - Proceedings of the 2016 International Symposium on Advances in Electrical, Electronics and Computer Engineering
PB  - Atlantis Press
SP  - 28
EP  - 32
SN  - 2352-5401
UR  - https://doi.org/10.2991/isaeece-16.2016.6
DO  - 10.2991/isaeece-16.2016.6
ID  - Zhou2016/04
ER  -