Abstract
This letter presents a simulation-based case study that indicates the need for accurate dynamic modeling of protection systems. In many cases, a static analysis based on current and voltage phasors may be sufficient to assess the performance of protection systems. There are several circumstances under which such a simplified study does not provide the depth of analysis necessary to obtain accurate results, however. This letter presents a study of the influence of transformer magnetizing inrush current on the performance of different types of distance protection relays. Three types of distance relays have been investigated: Micromho, THR, and REL 100. The studies have been performed in order to demonstrate the difference in responses to the same event when detailed dynamic models of protection relays are utilized.
| Original language | English |
|---|---|
| Pages (from-to) | 54-55 |
| Number of pages | 1 |
| Journal | IEEE Power Engineering Review |
| Volume | 21 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2001 |
Keywords
- magnetisation
- power system protection
- power transformer protection
- relay protection
- electrical systems
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