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).
Analysis of test results for various lighting dynamos under open circuit conditions.
| Identifier | WestWitteringFiles\C\August1919\ Scan54 | |
| Date | 1st July 1919 | |
| R.R. 235 A (100 T) (S.F. 575, 16-4-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2354. 1. 1.7.19. ANALYSIS OF RESULTS OF TESTS OF LIGHTING DYNAMOS. A.{Mr Adams} Open circuit separate excitation. Main Volts. Ex.Curr. C.A.V. Lucas Smith N.C.H.R. E.S/S. Type A.{Mr Adams} { 1500 { 1 26.8 22.2 23.3 R.P.M.{ 2 38.4 29.5 39.5 { 3 43.9 34.0 48.0 { { 250 { 1 45.0 37.2 38.9 R.P.M.{ 2 63.6 49.4 66.1 { 3 72.4 56.3 79.5 { B. Open circuit self excitation. Main volts. Speed. C.A.V. Lucas Smith N.C.H.R. E.S/S. Type A.{Mr Adams} 500 10.0 7.8 11.1 600 13.9 10.2 14.5 800 20.5 15.4 21.5 1000 28.6 21.4 29.7 1400 46.0 33.9 42.9 1800 64.0 46.7 56.3 Contd. | ||