Effects of Iron-Core Topology on Inrush Currents in Three-Phase Multi-Leg Power Transformers
This paper investigates the inrush currents of three-phase (a)symmetric multi-leg transformer cores considering magnetic core structure (e.g., three-leg vs. five-leg) and switching effects (e.g., recloser operating). The electromagnetic steady-state and transient behavior of three-phase transformers...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Conference Paper |
| Published: |
IEEE
2012
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/45777 |
| _version_ | 1848757379295870976 |
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| author | Moses, Paul Masoum, Mohammad Moghbel, Moayed |
| author2 | IEEE |
| author_facet | IEEE Moses, Paul Masoum, Mohammad Moghbel, Moayed |
| author_sort | Moses, Paul |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper investigates the inrush currents of three-phase (a)symmetric multi-leg transformer cores considering magnetic core structure (e.g., three-leg vs. five-leg) and switching effects (e.g., recloser operating). The electromagnetic steady-state and transient behavior of three-phase transformers significantly differs from single-phase transformer operation mainly because of the unique flux coupling interactions in multi-leg and asymmetric core structures. A recently developed three-leg nonlinear transformer core model is applied to this study which considers the influence of magnetic hysteresis, flux couplings in the core-structure and nonsinusoidal operation in three-phase transformers. Simulations results for multi-leg (e.g., three-leg and five-leg) transformer cores demonstrating inrush current behavior based on the model are presented and discussed. |
| first_indexed | 2025-11-14T09:27:09Z |
| format | Conference Paper |
| id | curtin-20.500.11937-45777 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:27:09Z |
| publishDate | 2012 |
| publisher | IEEE |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-457772017-09-13T14:25:25Z Effects of Iron-Core Topology on Inrush Currents in Three-Phase Multi-Leg Power Transformers Moses, Paul Masoum, Mohammad Moghbel, Moayed IEEE Inrush current nonlinear transformer model This paper investigates the inrush currents of three-phase (a)symmetric multi-leg transformer cores considering magnetic core structure (e.g., three-leg vs. five-leg) and switching effects (e.g., recloser operating). The electromagnetic steady-state and transient behavior of three-phase transformers significantly differs from single-phase transformer operation mainly because of the unique flux coupling interactions in multi-leg and asymmetric core structures. A recently developed three-leg nonlinear transformer core model is applied to this study which considers the influence of magnetic hysteresis, flux couplings in the core-structure and nonsinusoidal operation in three-phase transformers. Simulations results for multi-leg (e.g., three-leg and five-leg) transformer cores demonstrating inrush current behavior based on the model are presented and discussed. 2012 Conference Paper http://hdl.handle.net/20.500.11937/45777 10.1109/PESGM.2012.6344892 IEEE fulltext |
| spellingShingle | Inrush current nonlinear transformer model Moses, Paul Masoum, Mohammad Moghbel, Moayed Effects of Iron-Core Topology on Inrush Currents in Three-Phase Multi-Leg Power Transformers |
| title | Effects of Iron-Core Topology on Inrush Currents in Three-Phase Multi-Leg Power Transformers |
| title_full | Effects of Iron-Core Topology on Inrush Currents in Three-Phase Multi-Leg Power Transformers |
| title_fullStr | Effects of Iron-Core Topology on Inrush Currents in Three-Phase Multi-Leg Power Transformers |
| title_full_unstemmed | Effects of Iron-Core Topology on Inrush Currents in Three-Phase Multi-Leg Power Transformers |
| title_short | Effects of Iron-Core Topology on Inrush Currents in Three-Phase Multi-Leg Power Transformers |
| title_sort | effects of iron-core topology on inrush currents in three-phase multi-leg power transformers |
| topic | Inrush current nonlinear transformer model |
| url | http://hdl.handle.net/20.500.11937/45777 |