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).
Procedure for testing the dynamo and cutout system functionality.
| Identifier | ExFiles\Box 166\2\ img009 | |
| Date | 17th September 1935 guessed | |
| -3- (6) The dynamo speed shall be reduced until the ammeter A reading is zero, at which point, it is assumed, the battery is sufficiently charged to provide a P.D. of at least 12 volts across the shunt coil of the cutout. The connections to this ammeter shall then be reversed, after which the speed shall be gradually reduced still further until the cutout contacts fall apart. The instant of falling away will be shown by the drop to zero of the needle of the ammeter A.{Mr Adams} The reading preceding this instant shall be noted and shall not exceed 2.0 amperes. -------------------- | ||