Influence of NSDD phenomenon on power quality after breaking of vacuum circuit-breaker

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Paper number
699
Working Group Number
Conference name
CIRED 2019
Conference date
3-6 June 2019
Conference location
Madrid, Spain
Peer-reviewed
Yes
Short title
Convener
Authors
FAN, Guangwei, Xi'an High Voltage Apparatus Research Institute Co.- Ltd., China
LI, Gang, Xi'an High Voltage Apparatus Research Institute Co. Ltd., China
LIU, Haojun, Xi'an High Voltage Apparatus Research Institute Co. Ltd., China
HUANG, Shi, Xi'an High Voltage Apparatus Research Institute Co. Ltd., China
ZHANG, Zhaoyang, Xi'an High Voltage Apparatus Research Institute Co. Ltd., China
Abstract
Vacuum circuit-breaker is an important electrical equipment for power system, and the switching capacitive current is its important performance test. In the switching capacitive current test, the vacuum circuit-breaker is easy to produce the situation of NSDD (non-sustained disruptive discharge). NSDD is a voltage breakdown after the vacuum circuit-breaker breaking the capacitive current which will not cause the recovery of power frequency or capacitive current in main circuit. Although the impact of NSDD on the vacuum circuit-breaker itself is not very serious, the voltage change will have some influence on the insulation of the nearby electrical equipment. At the same time, there are six kinds of power quality disturbance signals in power system, including voltage sag, voltage swell, voltage interruption, transient pulse, transient oscillation and harmonics. When NSDD occurs, transient pulse will occur in the supply voltage, while the load voltage will not occur charging and discharging process. The transient pulse phenomenon will cause a certain degree of influence on the power quality of the power system. Therefore, this paper presents the analysis of the effect of NSDD phenomenon on the power quality after breaking of the vacuum circuit-breaker.
Table of content
Keywords
Publisher
AIM
Date
2019-06-03
Permanent link to this record
https://cired-repository.org/handle/20.500.12455/122
http://dx.doi.org/10.34890/242
ISSN
2032-9644
ISBN
978-2-9602415-0-1