220-110 site step down transformer.

Do you actually need an isolated 55-0-55 site transformer? Do you already have the tools to run off it?

It's not something I've seen here, all the site power tools are 220V even on major projects.

Found one on Rent: https://www.google.com/search?q=site%3Arent.co.th&oq=site%3Arent.co.th&aqs=chrome..69i57j69i58.15831j0j1&sourceid=chrome&es_sm=122&ie=UTF-8#q=%E0%B8%9A%E0%B8%A3%E0%B8%B4%E0%B8%A9%E0%B8%B1%E0%B8%97+%E0%B9%80%E0%B8%A3%E0%B9%89%E0%B8%99%E0%B8%97%E0%B9%8C+(%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B9%80%E0%B8%97%E0%B8%A8%E0%B9%84%E0%B8%97%E0%B8%A2)+%E0%B8%88%E0%B8%B3%E0%B8%81%E0%B8%B1%E0%B8%94+step+down+regulator

I'm not sure if they still have stocks available. Try to visit their shop.

Edited November 5, 201510 yr by rubygilmore

If paying for shipping fees isn't a problem to you. You can try check on https://www.codale.com. I know they have transformers available last week.