Three Phase Conversion by Graham Astbury. Often diy and model engineers buy industrial workshop equipment, such as lathes, drilling machines and milling machines, but they usually require a three-phase electricity supply. Although ready-built phase converters are available, they can often cost as much or even more than the equipment purchased. This book provides an invaluable source of practical guidance on how anyone can find out the type of electrical equipment they have, and how to convert it to allow it to run on a single-phase supply. Whilst many books on the subject give just some ideas on methods of conversion, this one provides exact calculations for each method to ensure that the best performance is achieved, without compromising safety or risking burning out motors or other equipment. Step-by-step instructions with photographs and diagrams make simple what would be thought of as difficult or complex. This is a UK book and worked examples of the few required calculations are given and cover electricity supplies in America, Europe and the rest of the world. Explanations of what test equipment is needed are given, along with instructions on how to build some useful test equipment at low cost. Finally, it gives advice on which equipment cannot be converted at all. Chapters are; Basic alternating current concepts Why three phase Useful instruments to have Identifying what equipment you have Steinmetz connection Phase converters The use of a motor generator supply Electronic variable speed drives Wiring motor starters and overloads Winding auto transformers Heaters Appendices The mathematics of three phase Notes for non European supplies Copper wire tables Answers to questions

Softcover, 149 pages, 145mm x 210mm, b&w photos, brand new. Check out my other listings for more books Im happy to combine postage where possible. Pickup is at Seddon.