Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Data table listing conditions, position of tappings, total number of turns, and equivalent nominal voltage.

Identifier  ExFiles\Box 32\4\  Scan053
Date  27th September 1924 guessed
  
-2-

Condition. | Position of tappings (Expressed in No. of turns). | Total No. of turns. | Equivalent nominal voltage

33. | 40,5,10,80. | 135 | 108
34. | 20,40,5,10,80. | 135 | 124
35. | 10,20,40,5,10,80. | 165 | 132
36. | 5,10,20,40,5,10,80. | 170 | 136
37. | 2,5,10,20,40,5,10,80. | 172 | 137.6
38. | 1,2,5,10,20,40,5,10,80. | 173 | 138.4
39. | 2,1,2,5,10,20,40,5,10,80. | 175 | 140
40. | 80,160. | 240 | 192
41. | 10,80,160. | 250 | 200
42. | 5,10,80,160. | 255 | 204
43. | 40,5,10,80,160. | 295 | 236
44. | 20,40,5,10,80,160. | 315 | 252
45. | 10,20,40,5,10,80,160. | 325 | 260
46. | 5,10,20,40,5,10,80,160. | 330 | 264
47. | 2,5,10,20,40,5,10,80,160. | 332 | 265.6
48. | 1,2,5,10,20,40,5,10,80,160. | 333 | 266.4
49. | 2,1,2,5,10,20,40,5,10,80,160. | 335 | 268.

EFC/HEW.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙