Rotary Phase Converters?

I don't know much about rotary phase converters. A friend of mine who is in to building websites has asked me to look over a bunch of his sites and make suggestions for improvements. So his latest website is about Rotary Phase Converters Looks good to me but perhaps you might want to check it out yourself and email him if you have any comments of your own. You can get the email address by clicking on the contact link on the website.