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Content Provider | IET Digital Library |
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Author | Zheng, Bin Xiang, Zutao Ban, Liangeng Jiang, Hongli Wang, Xiaotong Teng, Wentao |
Abstract | Under the influence of series compensation (SC) capacitance and rated voltage rise, when ultra high voltage (UHV) high SC line occurs inner fault, the short-circuit current through the SC line is greater and the residual voltage across the SC is higher, which cause the electromagnetic transient process excited by high amplitude current and voltage to be more serious in the event of fault occurrence and removal. The security of circuit breaker (CB) equipment is threatened, which make it need further research on the characteristics and put forward some effective solutions. In this study, the characteristics of macroscopic statistical distribution of peak value via short-circuit current of transient recovery voltage (TRV) across CB fracture during switching after short-circuit current zero crossing for UHV high SC line are put forward, and also of the microscopic characterization parameter of waveform rise rate and peak value time. It shows that the TRV switching capability of existing UHV CBs can not cover all the fault scenarios of high SC line. Solutions including comprehensive comparison of TRV optimal suppression measures and increase of the UHV CB switching expected TRV test requirements are put forward, which provide feasible technical scheme for CBs reliable switching of UHV high SC line. |
Starting Page | 867 |
Ending Page | 871 |
Page Count | 5 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 16, Mar (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8664 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2018-10-23 |
Access Restriction | Open |
Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
Subject Keyword | Circuit Breaker Circuit Breaker Equipment Circuit Breaker TRV Issues Electromagnetic Transient Process Fault Occurrence Fault Removal High Amplitude Macroscopic Statistical Distribution Peak Value Power Transmission Fault Power Transmission Line Power Transmission, Distribution And Supply Residual Voltage Series Compensation Capacitance Short-circuit Current Short-circuit Current Zero Crossing Switch Transient Recovery Voltage TRV Optimal Suppression Measures TRV Switching Capability UHV CB Switching UHV High SC Line UHV High Series Compensation Line Voltage Rise |
Content Type | Text |
Resource Type | Article |
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