|The linked transformer is only rated for 230W max. I would recommend you simply replace the power supply. I am in the USA but all the power supplies I have ever bought are rated for 115V or 230V.|
Have you looked at the back of your power supply for a switch to go from 230V to 115V. Also possible the power supply may automatically adjust for the available input voltage.
If you post the full model number of your power supply we should be able to figure this out.
message edited by OtheHill