From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Technical note on indicating windings and a scheme for reduced charge switching in generators.
| Identifier | ExFiles\Box 65\2\ scan0189 | |
| Date | 30th January 1930 | |
| EFC1/AD30.1.30 contd. -3- convention of indicating inductive windings by spirals, and purely resistive windings or resistances by straight zigzags. You will see by my note EFC7/AD28.1.30 addressed to PN.{Mr Northey} that we regard the provision of reduced charge switching as an essential feature of the scheme of utilising generators of "higher output". EFC. | ||