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Medium-frequency transformer |
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evaluated |
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The main transformer contributes considerably to losses in traction system (especially in 16,7 Hz systems). Modern power electronics allow for a more efficient and much lighter alternative: the medium frequency transformer operating at 400 - 800 Hz or comparable frequencies.
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Technology field: Optimisation of traction technologies
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General information
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General criteria
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Environmental criteria
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Economic criteria
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Application outside railway sector (this technology is railway specific)
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Overall rating
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Overall potential: very promising |
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Time horizon: long-term |
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Medium-frequency transformers represent an interesting lane of development towards more efficient transformers, an issue especially relevant in 16,7 Hz systems. Profitability in 50 Hz systems has to be assessed carefully. Present states of development do not yet allow a decision as to whether medium-frequency or HTSC transformer technology is the more attractive option. |
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References / Links:
Kunz et al. 1999
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Attachments:
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Related projects:
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Contact persons:
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date created: 2002-10-09 |
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© UIC - International Union of Railways 2003 |
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