see this link.
http://www.airlinktransformers.com/american-transformers.aspUS3000/2 3000va 230v to 120v Stepdown transformer £130.00
US2000/2 2000 va 240v to 120v Stepdown transformer £85.00
US0050 45va 230v to 120v Stepdown transformer £12.00
US0300 300va 230v to 120v Stepdown transformer £23.00
The price of transforma depents on VA or watt. In order to run a Refrigator, you will need 1000 Watt
The power consumption is stated in VA or Watts and can in most instances be considered the same, 300W = 300VA
Most appliances will have a rating label on the back Stating voltage and power for example: 120vac 198va in this case choose a 200va transformer
Always check individual rating label or instruction whenever possible.
If an inadequately rated transformer is used, the transformer will cut out periodically or blow fuses. In all cases it is important that the transformer is rated above the appliance with which it is to be used.
See the link below
http://www.airlinktransformers.com/transformer-guide.aspMy friend told that he used to buy staff from US base in UK and I used to do the same in SC ( Fort Jackson).
Thanks