Elimination of inrush current in parallel transformers by sequential phase energization
Production of very high inrush currents in transformers during energization may create deep voltage sag causing malfunction to electronic and other loads. In high voltage power system star-delta transformers are generally switched in, one by one, producing inrush currents each time. The inrush curre...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Published: |
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
2007
|
| Subjects: | |
| Online Access: | http://shdl.mmu.edu.my/3083/ |
| _version_ | 1848790229316534272 |
|---|---|
| author | Basu, K. P. Asghar, Ali Morris, Stella |
| author_facet | Basu, K. P. Asghar, Ali Morris, Stella |
| author_sort | Basu, K. P. |
| building | MMU Institutional Repository |
| collection | Online Access |
| description | Production of very high inrush currents in transformers during energization may create deep voltage sag causing malfunction to electronic and other loads. In high voltage power system star-delta transformers are generally switched in, one by one, producing inrush currents each time. The inrush current may be reduced by sequential phase energization of each transformer with neutral resistors.
This paper suggests that sequential phase energization should be carried out on the first transformer only after paralleling the delta secondary of all the transformers. This procedure eliminates inrush currents in all the remaining transformers without too much increase in the inrush of the first transformer. |
| first_indexed | 2025-11-14T18:09:18Z |
| format | Article |
| id | mmu-3083 |
| institution | Multimedia University |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:09:18Z |
| publishDate | 2007 |
| publisher | IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | mmu-30832011-09-29T03:21:21Z http://shdl.mmu.edu.my/3083/ Elimination of inrush current in parallel transformers by sequential phase energization Basu, K. P. Asghar, Ali Morris, Stella T Technology (General) QA75.5-76.95 Electronic computers. Computer science Production of very high inrush currents in transformers during energization may create deep voltage sag causing malfunction to electronic and other loads. In high voltage power system star-delta transformers are generally switched in, one by one, producing inrush currents each time. The inrush current may be reduced by sequential phase energization of each transformer with neutral resistors. This paper suggests that sequential phase energization should be carried out on the first transformer only after paralleling the delta secondary of all the transformers. This procedure eliminates inrush currents in all the remaining transformers without too much increase in the inrush of the first transformer. IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG 2007 Article NonPeerReviewed Basu, K. P. and Asghar, Ali and Morris, Stella (2007) Elimination of inrush current in parallel transformers by sequential phase energization. IEICE Electronics Express, 4 (5). pp. 147-152. ISSN 1349-2543 http://dx.doi.org/10.1587/elex.4.147 doi:10.1587/elex.4.147 doi:10.1587/elex.4.147 |
| spellingShingle | T Technology (General) QA75.5-76.95 Electronic computers. Computer science Basu, K. P. Asghar, Ali Morris, Stella Elimination of inrush current in parallel transformers by sequential phase energization |
| title | Elimination of inrush current in parallel transformers by sequential phase energization |
| title_full | Elimination of inrush current in parallel transformers by sequential phase energization |
| title_fullStr | Elimination of inrush current in parallel transformers by sequential phase energization |
| title_full_unstemmed | Elimination of inrush current in parallel transformers by sequential phase energization |
| title_short | Elimination of inrush current in parallel transformers by sequential phase energization |
| title_sort | elimination of inrush current in parallel transformers by sequential phase energization |
| topic | T Technology (General) QA75.5-76.95 Electronic computers. Computer science |
| url | http://shdl.mmu.edu.my/3083/ http://shdl.mmu.edu.my/3083/ http://shdl.mmu.edu.my/3083/ |