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ENEA - Fusion division
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FTU: CONVERTERS: AL-T
Converter for (main) Transformer: electrical schematic
A dodecaphase thyristor converter is supplied at 15 kV by MFG3 with sequence
control on four quadrants (current inversion is possible) with the method
of current circulation without dead times.
The Commutation circuit (grey rectangle in figure on the right) is connected below the power supply. The unit generates a voltage pulse that triggers the plasma current.
This converter supplies the T windings (Transformer) that have an inductance of 79 mH and a resistance (at 77 K) of 18.5 mΩ.
| VACin Transf. |
15 kV |
| VACout Transf. |
1.3 kV |
| PTransf. | 92.2 MVA |
| VDCout | ±5 kV |
| IDCout | ±25 kA |
AL-T transformers (outside converters building)
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