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| Content Provider | IET Digital Library |
|---|---|
| Author | Rocha, Danielly C. G. Batista, Wesley H. Coelho, Aurélio L. M. Araujo, Marcos R. |
| Abstract | This study presents a methodology that allows examining the differential protection of power transformers through computational simulations and numerical relay tests. Using that purpose, the alternative transient program (ATP) was used as a computational tool to perform several different events, which the power transformers are submitted to, and that can cause mal-operation of its differential protection, such as: external and internal faults, inrush current and saturation of current transformers (CTs). A testing system was implemented in laboratory, which consisted in simulating the power system in ATP (power transformer, CTs and faults modes) and applying the simulated signals through a programmable test set to a commercial relay to evaluate their response to these events. The main results of the behaviour of transformer protection relay under the tested transients are presented and discussed in this work. |
| Starting Page | 1239 |
| Ending Page | 1244 |
| Page Count | 6 |
| Volume Number | 2018 |
| e-ISSN | 20513305 |
| Issue Number | Issue 15, Oct (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2018/15 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.0274 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-07-18 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
| Subject Keyword | Alternative Transient Program ATP Computational Simulations Computational Tool Current Saturation Current Transformers External Fault Fault Mode Inrush Transients Internal Fault Numerical Relay Tests Power System Power System Protection Power Transformer Power Transformer Protection Programmable Test Relay Protection Simulated Signal Testing System Transformer And Reactors Transformer Differential Protection Transformer Protection Relay |
| Content Type | Text |
| Resource Type | Article |
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